JP6971008B2 - Moisture content continuous measurement method and moisture content continuous measurement device - Google Patents

Moisture content continuous measurement method and moisture content continuous measurement device Download PDF

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JP6971008B2
JP6971008B2 JP2018126776A JP2018126776A JP6971008B2 JP 6971008 B2 JP6971008 B2 JP 6971008B2 JP 2018126776 A JP2018126776 A JP 2018126776A JP 2018126776 A JP2018126776 A JP 2018126776A JP 6971008 B2 JP6971008 B2 JP 6971008B2
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water content
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善和 中尾
哲 東山
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Rengo Co Ltd
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Description

本発明は、紙製の試料の含水率を連続して測定する含水率連続測定方法および含水率連続測定装置に関する。 The present invention relates to a continuous water content measuring method and a continuous water content measuring device for continuously measuring the water content of a paper sample.

紙製の試料の含水率（水分）を測定する方法が知られている。 A method for measuring the water content (moisture) of a paper sample is known.

例えば、非特許文献１には、乾燥器を使用して、板紙のロットの水分を測定する方法（以下、「絶乾法」ともいう。）が開示されている。この方法では、板紙の保管場所等、ある環境下での板紙の質量を質量測定器で測定した後、その板紙を乾燥機で恒量に達するまで乾燥（絶乾）させ、絶乾時の板紙の質量を質量測定器で測定する。そして、環境下の板紙質量と絶乾時の板紙質量との差を水分とみなして下式から含水率を算出する。
（式） 含水率（％）＝（Ｍ０−Ｍ１）÷Ｍ０×１００
Ｍ０：環境下の板紙質量（ｇ）
Ｍ１：絶乾時の板紙質量（ｇ）
なお、「水分」や「恒量」等の用語の定義、乾燥機の仕様、乾燥方法等は、非特許文献１の規定による。 For example, Non-Patent Document 1 discloses a method of measuring the water content of a lot of paperboard using a dryer (hereinafter, also referred to as “absolute drying method”). In this method, the mass of the paperboard under a certain environment such as the storage place of the paperboard is measured with a mass measuring device, and then the paperboard is dried (absolutely dried) with a dryer until it reaches a constant amount. The mass is measured with a mass measuring device. Then, the difference between the mass of the paperboard under the environment and the mass of the paperboard at the time of absolute drying is regarded as water content, and the water content is calculated from the following formula.
(Equation) Moisture content (%) = (M0-M1) ÷ M0 × 100
M0: Paperboard mass under environment (g)
M1: Paperboard mass (g) at the time of absolute drying
The definitions of terms such as "moisture" and "constant amount", the specifications of the dryer, the drying method, etc. are based on the provisions of Non-Patent Document 1.

日本工業規格 ＪＩＳ Ｐ ８１２７Japanese Industrial Standard JIS P 8127

しかしながら、上記した絶乾法では、乾燥機で恒量に達するまで板紙を乾燥させるために多くの時間（約３時間）を要し、手軽に含水率を知ることができなかった。 However, in the above-mentioned absolute drying method, it takes a lot of time (about 3 hours) to dry the paperboard until it reaches a constant amount in the dryer, and the water content cannot be easily known.

また、板紙の保管場所等では温度・湿度が刻々と変化するため、板紙の含水率の経時的な変化を把握したいという要求がある。この要求を満たすためには板紙の含水率を連続して（周期的に）測定する必要がある。しかしながら、上記した絶乾法を連続して行う場合、１回目の含水率を算出した後、質量測定器のゼロ点補正を行い、板紙の環境下の質量を測定し、再びその板紙を絶乾させて絶乾時の板紙質量を計測し直す必要があった。したがって、絶乾法によって含水率の算出を連続的（周期的）に行うことは、非常に多くの時間を必要とするため、現実的な方法とは言えず、板紙の含水率の変化をリアルタイムに把握することができなかった。 In addition, since the temperature and humidity change from moment to moment in the storage place of the paperboard, there is a demand to grasp the change over time in the water content of the paperboard. In order to meet this requirement, it is necessary to continuously (periodically) measure the moisture content of the paperboard. However, when the above-mentioned absolute drying method is continuously performed, after calculating the moisture content for the first time, the zero point correction of the mass measuring instrument is performed, the mass of the paperboard under the environment is measured, and the paperboard is dried again. It was necessary to remeasure the paperboard mass at the time of absolute drying. Therefore, it is not a realistic method to calculate the moisture content continuously (periodically) by the absolute dry method because it takes a lot of time, and the change in the moisture content of the paperboard is changed in real time. I couldn't figure it out.

一方で、測定対象物に端子（プローブ）を接触させて電気を流した際の抵抗値を水分量に置き換える電気抵抗式水分計が既に販売されており、この電気抵抗式水分計を用いて板紙の含水率を連続測定することができる場合がある。しかしながら、電気抵抗式水分計は、端子を接触させた板紙の一部分の水分を測定するのであって、板紙全体の含水率を測定することはできなかった。したがって、電気抵抗式水分計では、ある環境下に置かれた板紙全体の含水率を精度良く連続測定することができなかった。 On the other hand, an electric resistance type moisture meter that replaces the resistance value when electricity is passed by contacting a terminal (probe) with the object to be measured is already on the market, and a paperboard using this electric resistance type moisture meter. It may be possible to continuously measure the moisture content of. However, the electric resistance type moisture meter measures the moisture content of a part of the paperboard with which the terminals are in contact, and cannot measure the moisture content of the entire paperboard. Therefore, the electric resistance type moisture meter could not continuously measure the moisture content of the entire paperboard placed in a certain environment with high accuracy.

本発明は、上記課題を解決するために、試料の含水率を連続的に精度良く測定することができる含水率連続測定方法および含水率連続測定装置を提供する。 In order to solve the above problems, the present invention provides a water content continuous measurement method and a water content continuous measurement device capable of continuously and accurately measuring the water content of a sample.

上記した目的を達成するため、本発明は、紙製の試料の含水率を連続して測定する含水率連続測定方法であって、質量測定器の計量位置に対する前記試料の配置と、前記計量位置からの前記試料の離間と、を繰り返す質量連続測定工程と、前記質量連続測定工程の所定周期毎に、前記質量測定器が測定した質量の最大値と最小値との差分から前記試料の含水質量を算出し、前記含水質量と前記試料の既知数である絶乾質量との差分に基づいて前記試料の含水率を算出する含水率連続算出工程と、を備えている。 In order to achieve the above object, the present invention is a method for continuously measuring the water content of a paper sample, in which the sample is arranged with respect to the measuring position of the mass measuring device and the measuring position is measured. From the difference between the maximum value and the minimum value of the mass measured by the mass measuring instrument at each predetermined cycle of the mass continuous measurement step of repeating the separation of the sample from the sample and the water content mass of the sample. It is provided with a water content continuous calculation step of calculating the water content of the sample based on the difference between the water content and the absolute dry mass which is a known number of the sample.

他にも、上記した目的を達成するため、本発明は、紙製の試料の含水率を連続して測定する含水率連続測定方法であって、質量測定器の計量位置に対する前記試料の配置と、前記計量位置からの前記試料の離間と、を繰り返す質量連続測定工程と、前記質量連続測定工程の所定周期毎に、前記計量位置から前記試料を離間させた際に前記質量測定器のゼロ点補正を行う補正工程と、前記質量連続測定工程の所定周期毎に、前記質量測定器が測定した質量の最大値を前記試料の含水質量とし、前記含水質量と前記試料の既知数である絶乾質量との差分に基づいて前記試料の含水率を算出する含水率連続算出工程と、を備えている。 In addition, in order to achieve the above-mentioned object, the present invention is a method for continuously measuring the water content of a paper sample, wherein the sample is arranged with respect to the measuring position of the mass measuring device. , The zero point of the mass measuring instrument when the sample is separated from the measuring position at predetermined intervals of the mass continuous measuring step of repeating the separation of the sample from the measuring position and the continuous mass measuring step. The maximum value of the mass measured by the mass measuring instrument is defined as the water-containing mass of the sample at each predetermined cycle of the correction step for correction and the continuous mass measurement step, and the water-containing mass and the known number of the sample are absolutely dry. It is provided with a water content continuous calculation step of calculating the water content of the sample based on the difference from the mass.

この場合、環境湿度の増加または減少に伴って前記質量連続測定工程の周期を短くすることが好ましい。 In this case, it is preferable to shorten the cycle of the continuous mass measurement step as the environmental humidity increases or decreases.

この場合、前記含水率連続算出工程で算出された含水率が予め設定された条件を満たしたことをユーザに報知する報知工程を更に備えていることが好ましい。 In this case, it is preferable to further include a notification step of notifying the user that the water content calculated in the water content continuous calculation step satisfies a preset condition.

上記した目的を達成するため、本発明は、紙製の試料の含水率を連続して測定する含水率連続測定装置であって、計量位置に配置された物の質量を測定する質量測定器と、前記計量位置に対する前記試料の配置と、前記計量位置からの前記試料の離間と、を繰り返し行う離接装置と、前記離接装置による前記試料の配置と離間の所定周期毎に、前記質量測定器が測定した質量の最大値と最小値との差分から前記試料の含水質量を算出し、前記含水質量と前記試料の既知数である絶乾質量との差分に基づいて前記試料の含水率を算出する算出装置と、を備えている。 In order to achieve the above object, the present invention is a water content continuous measuring device for continuously measuring the water content of a paper sample, and a mass measuring device for measuring the mass of an object placed at a measuring position. The mass measurement is performed at predetermined intervals of a separation device that repeatedly arranges the sample with respect to the measurement position and separates the sample from the measurement position, and placement and separation of the sample by the separation device. The water content of the sample is calculated from the difference between the maximum and minimum values of the mass measured by the instrument, and the water content of the sample is calculated based on the difference between the water content and the known absolute dry mass of the sample. It is equipped with a calculation device for calculating.

他にも、上記した目的を達成するため、本発明は、紙製の試料の含水率を連続して測定する含水率連続測定装置であって、計量位置に配置された物の質量を測定する質量測定器と、前記計量位置に対する前記試料の配置と、前記計量位置からの前記試料の離間と、を繰り返し行う離接装置と、前記離接装置による前記試料の配置と離間の所定周期毎に、前記計量位置から前記試料を離間させた際に前記質量測定器のゼロ点補正を行う補正部と、前記離接装置による前記試料の配置と離間の所定周期毎に、前記質量測定器が測定した質量の最大値を前記試料の含水質量とし、前記含水質量と前記試料の既知数である絶乾質量との差分に基づいて前記試料の含水率を算出する算出装置と、を備えている。 In addition, in order to achieve the above-mentioned object, the present invention is a water content continuous measuring device for continuously measuring the water content of a paper sample, and measures the mass of an object placed at a measuring position. A mass measuring device, a detaching device that repeatedly arranges the sample with respect to the measuring position and separating the sample from the measuring position, and every predetermined cycle of placing and separating the sample by the detaching device. , The mass measuring instrument measures at predetermined intervals of the correction unit that corrects the zero point of the mass measuring instrument when the sample is separated from the measuring position and the arrangement and separation of the sample by the detaching device. The maximum value of the measured mass is taken as the water content of the sample, and a calculation device for calculating the water content of the sample based on the difference between the water content and the known absolute dry mass of the sample is provided.

この場合、前記離接装置は、環境湿度の増加または減少に伴って前記試料の配置と離間の周期を短くすることが好ましい。 In this case, it is preferable that the detaching device shortens the cycle of arrangement and separation of the sample as the environmental humidity increases or decreases.

この場合、前記算出装置によって算出された含水率が予め設定された条件を満たしたことをユーザに報知する報知部を更に備えていることが好ましい。 In this case, it is preferable to further include a notification unit for notifying the user that the water content calculated by the calculation device satisfies a preset condition.

この場合、前記試料および前記質量測定器の周囲に配置される風防容器を更に備え、前記離接装置は、前記風防容器の上部に設けられ、回転軸を回転させる駆動部と、前記駆動部の前記回転軸に固定されたクランク板と、前記クランク板の前記回転軸から径方向外側にずれた位置と前記試料との間に架設された連結部材と、を含み、前記駆動部が前記クランク板を一方向に回転させることで、前記連結部材を介して前記クランク板に繋がれた前記試料が前記計量位置に配置される状態と前記計量位置から離間する状態との間で周期的に昇降を繰り返すことが好ましい。 In this case, a windshield container arranged around the sample and the mass measuring device is further provided, and the detaching device is provided on the upper part of the windshield container, and has a drive unit for rotating a rotating shaft and a drive unit of the drive unit. A crank plate fixed to the rotating shaft, a connecting member erected between the sample and a position of the crank plate displaced radially outward from the rotating shaft, and the driving unit is the crank plate. By rotating the sample in one direction, the sample connected to the crank plate via the connecting member is periodically moved up and down between the state where the sample is placed at the measuring position and the state where the sample is separated from the measuring position. It is preferable to repeat.

本発明によれば、紙製の試料の含水率を連続的に精度良く測定することができる。 According to the present invention, the water content of a paper sample can be continuously and accurately measured.

本発明の第１実施形態に係る含水率連続測定装置を示す構成図である。It is a block diagram which shows the water content continuous measurement apparatus which concerns on 1st Embodiment of this invention. 本発明の第１実施形態に係る含水率連続測定装置で用いる試料を示す斜視図である。It is a perspective view which shows the sample used in the water content continuous measuring apparatus which concerns on 1st Embodiment of this invention. 本発明の第１実施形態に係る含水率連続測定装置の電子天秤および算出装置を示すブロック図である。It is a block diagram which shows the electronic balance and the calculation apparatus of the moisture content continuous measurement apparatus which concerns on 1st Embodiment of this invention. 本発明の第１実施形態に係る含水率連続測定装置の作用を説明する構成図である。It is a block diagram explaining the operation of the water content continuous measuring apparatus which concerns on 1st Embodiment of this invention. 本発明の第１実施形態に係る含水率連続測定方法を示すアクティビティ図（フローチャート）である。It is an activity diagram (flow chart) which shows the water content continuous measurement method which concerns on 1st Embodiment of this invention. 本発明の第１実施形態に係る含水率連続測定方法の検証実験［１］の結果を示すグラフである。It is a graph which shows the result of the verification experiment [1] of the water content continuous measurement method which concerns on 1st Embodiment of this invention. 本発明の第１実施形態に係る含水率連続測定方法の検証実験［２］の結果を示すグラフである。It is a graph which shows the result of the verification experiment [2] of the water content continuous measurement method which concerns on 1st Embodiment of this invention. 本発明の第２実施形態に係る含水率連続測定装置の電子天秤および算出装置を示すブロック図である。It is a block diagram which shows the electronic balance and the calculation apparatus of the moisture content continuous measurement apparatus which concerns on 2nd Embodiment of this invention. 本発明の第２実施形態に係る含水率連続測定方法を示すアクティビティ図（フローチャート）である。It is an activity diagram (flow chart) which shows the water content continuous measurement method which concerns on 2nd Embodiment of this invention. 本発明の第１および第２実施形態の第２変形例に係る含水率連続測定装置を示す側面図である。It is a side view which shows the water content continuous measurement apparatus which concerns on the 2nd modification of 1st and 2nd Embodiment of this invention. 本発明の第１および第２実施形態の第３変形例に係る含水率連続測定装置を示す正面図である。It is a front view which shows the water content continuous measurement apparatus which concerns on 3rd modification of 1st and 2nd Embodiment of this invention.

以下、添付の図面を参照しつつ、本発明の実施形態について説明する。なお、図面に示す「Ｆｒ」は「前」を示し、「Ｒｒ」は「後」を示し、「Ｌ」は「左」を示し、「Ｒ」は「右」を示し、「Ｕ」は「上」を示し、「Ｄ」は「下」を示している。本明細書では方向や位置を示す用語を用いるが、それらの用語は説明の便宜のために用いるものであって、本発明の技術的範囲を限定するものではない。 Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the drawing, "Fr" indicates "front", "Rr" indicates "rear", "L" indicates "left", "R" indicates "right", and "U" indicates "U". "Upper" and "D" indicate "lower". Although terms indicating directions and positions are used in the present specification, these terms are used for convenience of explanation and do not limit the technical scope of the present invention.

［第１実施形態：含水率連続測定装置］
図１ないし図３を参照して、第１実施形態に係る含水率連続測定装置１について説明する。図１は含水率連続測定装置１を示す構成図である。図２は試料５を示す斜視図である。図３は含水率連続測定装置１の電子天秤１１および算出装置１３を示すブロック図である。 [First Embodiment: Water content continuous measuring device]
The water content continuous measuring device 1 according to the first embodiment will be described with reference to FIGS. 1 to 3. FIG. 1 is a block diagram showing a water content continuous measuring device 1. FIG. 2 is a perspective view showing the sample 5. FIG. 3 is a block diagram showing an electronic balance 11 and a calculation device 13 of the water content continuous measurement device 1.

含水率連続測定装置１は、例えば、紙製の段ボール箱を積み重ねて保管する倉庫内に設置され、段ボール箱の含水率を把握・管理するために使用される。例えば、圧縮荷重を受ける段ボール箱は含水率の増加に伴って胴膨れや潰れ（座屈）等の問題を発生し易くなるが、段ボール箱の含水率を把握することで、問題の発生を事前に予測して対応策を講ずることが可能になる。 The water content continuous measuring device 1 is installed in, for example, a warehouse in which paper corrugated cardboard boxes are stacked and stored, and is used for grasping and managing the water content of the corrugated cardboard boxes. For example, a corrugated cardboard box that receives a compressive load tends to cause problems such as body swelling and crushing (buckling) as the water content increases. It will be possible to anticipate and take countermeasures.

倉庫内の湿度は、気温、時間、天候、季節等によって刻々と変化するため、有効な対応策をとるには、段ボール箱の含水率の経時的な変化を把握する必要がある。つまり、段ボール箱の含水率を連続して測定することが必要になる。例えば、含水率の連続測定方法として、段ボール箱と同じ材料から成るサンプルの絶乾質量を予め測定しておき、そのサンプルを電子天秤１１に載せたままにし、定期的に電子天秤１１の表示から質量変化を読み取って含水率を算出することが考えられる。 Humidity in the warehouse changes from moment to moment depending on the temperature, time, weather, season, etc. Therefore, in order to take effective countermeasures, it is necessary to grasp the change over time in the moisture content of the cardboard box. That is, it is necessary to continuously measure the water content of the cardboard box. For example, as a continuous measurement method of water content, the absolute dry mass of a sample made of the same material as a cardboard box is measured in advance, the sample is left on the electronic balance 11, and the display of the electronic balance 11 is periodically displayed. It is conceivable to read the mass change to calculate the water content.

しかしながら、電子天秤１１を設置した環境の温湿度変化によって、電子天秤１１の部品が、熱膨張または熱収縮したり、乾燥時により帯電したりして、電子天秤１１の計量皿２１に何も載せていない状態でも電子天秤１１の表示が０（ゼロ）にならないことがある。つまり、環境の温湿度変化によって、電子天秤１１のゼロ点が変化する。このため、サンプルを天秤に載せたまま質量測定を行う上記の方法では、サンプルの正確な質量測定を行うことができず、誤差を含む質量に基づいて算出された含水率にも誤差が含まれることになる。 However, due to changes in the temperature and humidity of the environment in which the electronic balance 11 is installed, the parts of the electronic balance 11 may be thermally expanded or contracted, or may be more charged during drying, and nothing is placed on the measuring plate 21 of the electronic balance 11. The display of the electronic balance 11 may not be 0 (zero) even when it is not set. That is, the zero point of the electronic balance 11 changes due to changes in the temperature and humidity of the environment. For this reason, the above method of measuring the mass while the sample is placed on the balance cannot accurately measure the mass of the sample, and the water content calculated based on the mass including the error also includes an error. It will be.

そこで、第１実施形態に係る含水率連続測定装置１は、電子天秤１１のゼロ点が変化したとしても、紙製の試料５の含水率を正確に且つ連続して測定（周期的に測定）することができるように構成されている。なお、本明細書において「試料５の含水率を正確に且つ連続して測定（周期的に測定）する」の「連続」とは、時間的に切れ目なく連なり続くことのみを意味するのではなく、一定間隔（間欠的）または不定間隔で繰り返されることをも含んでいる。また、「周期」または「周期的」とは、一定間隔で繰り返されることを含むと共に、不定間隔で繰り返されることも含んでいる。 Therefore, the water content continuous measuring device 1 according to the first embodiment accurately and continuously measures the water content of the paper sample 5 (periodically measured) even if the zero point of the electronic balance 11 changes. It is configured to be able to. In addition, in this specification, "continuous" of "measurement of water content of sample 5 accurately and continuously (periodically)" does not mean only continuous continuation in time. It also includes repeating at regular intervals (intermittent) or at irregular intervals. Further, "periodic" or "periodic" includes repeating at regular intervals and also including repeating at irregular intervals.

＜試料＞
まず、図２を参照して、含水率連続測定装置１で用いる試料５について説明する。試料５は、含水率を把握・管理したい段ボール箱と同じ紙製の段ボールシートで構成されている。この段ボールシートは、波状の中しんの表裏にライナを貼り合せた両面段ボールシートである。試料５は、段ボールシートを折り込んで略角筒状に形成されている。角筒状に折り込んだ時の段ボールシートの端部分には接続片５Ａが連設されており、段ボールシートの端部分と重なる部分に開いた接続穴５Ｂに接続片５Ａを差し込むことで試料５が角筒形状に保持される。また、段ボールシートの端部分と重なる部分は極力少なくなるように設計されている。 <Sample>
First, with reference to FIG. 2, the sample 5 used in the water content continuous measuring device 1 will be described. The sample 5 is composed of a corrugated cardboard sheet made of the same paper as the corrugated cardboard box for which the water content is to be grasped and managed. This corrugated cardboard sheet is a double-sided corrugated cardboard sheet in which liners are attached to the front and back of a wavy corrugated cardboard. The sample 5 is formed into a substantially square cylinder by folding a corrugated cardboard sheet. A connection piece 5A is continuously provided at the end portion of the corrugated cardboard sheet when folded into a square cylinder, and the sample 5 can be obtained by inserting the connection piece 5A into the connection hole 5B opened in the portion overlapping the end portion of the corrugated cardboard sheet. It is held in the shape of a square cylinder. Further, the portion overlapping with the end portion of the corrugated cardboard sheet is designed to be as small as possible.

以上のように、試料５が角筒状を成すことで、試料５の表面積を広く確保することができ、安定した状態で電子天秤１１上に自立させることもできる。また、接着剤等を使用していないため、段ボールシート以外の材料による水分の誤差を防止することができる。さらに、段ボールシートの重なり部分が少ないため、水分を吸収・放出し易く、含水率の変化を把握し易くなっている。 As described above, since the sample 5 has a square cylinder shape, a large surface area of the sample 5 can be secured, and the sample 5 can be made to stand on the electronic balance 11 in a stable state. Further, since no adhesive or the like is used, it is possible to prevent an error in moisture due to a material other than the corrugated cardboard sheet. Further, since the overlapping portion of the corrugated cardboard sheet is small, it is easy to absorb and release water, and it is easy to grasp the change in the water content.

図１に示すように、含水率連続測定装置１は、風防容器１０と、電子天秤１１と、離接装置１２と、算出装置１３と、を備えている。 As shown in FIG. 1, the water content continuous measuring device 1 includes a windshield container 10, an electronic balance 11, a detaching device 12, and a calculating device 13.

＜風防容器＞
風防容器１０は、紙製、合成樹脂製または金属製、若しくはこれらの組み合わせから成る箱であって、底面を開口した略直方体状に形成されている。風防容器１０の前面や側面には、外部と内部とを連通させる開口部１０Ａが形成されている。風防容器１０は、試料５および電子天秤１１の周囲を取り囲むように配置される。 <Windshield container>
The windshield container 10 is a box made of paper, synthetic resin, metal, or a combination thereof, and is formed in a substantially rectangular parallelepiped shape with an open bottom surface. An opening 10A for communicating the outside and the inside is formed on the front surface and the side surface of the windshield container 10. The windshield container 10 is arranged so as to surround the sample 5 and the electronic balance 11.

＜電子天秤＞
質量測定器の一例としての電子天秤１１は、略水平な設置面上に配置され、風防容器１０に囲まれている。電子天秤１１は、天秤本体２０の上面に計量皿２１を配置した電磁力平衡式の秤であって、計量皿２１（計量位置）に配置された物（試料５）の質量を測定する。なお、電子天秤１１は、ＡＣ−ＤＣ変換回路を介して商用電源に電気的に接続されている（図示せず）。 <Electronic balance>
The electronic balance 11 as an example of the mass measuring instrument is arranged on a substantially horizontal installation surface and is surrounded by a windshield container 10. The electronic balance 11 is an electromagnetic force equilibrium type scale in which a measuring plate 21 is arranged on the upper surface of the balance main body 20, and measures the mass of an object (sample 5) arranged in the measuring plate 21 (measuring position). The electronic balance 11 is electrically connected to a commercial power source via an AC-DC conversion circuit (not shown).

図３に示すように、天秤本体２０は、磁石周りのコイルから電磁力を加えられる棹を含み、コイルに流れる電流を測定する電流測定部２２と、電流測定部２２によって測定された電流値（アナログ電気信号）をデジタル電気信号に変換（Ａ／Ｄ変換）する変換送信部２３と、を有している。電流測定部２２は、コイルに流れる電流を調整することで棹に加わる電磁力を変化させ、計量皿２１に載置された物の質量と釣り合ったときのコイルの電流値を測定する。変換送信部２３は、コイルの電流値をＡ／Ｄ変換し、デジタル処理を施すことで計量皿２１に載置された物の質量を算出する。また、変換送信部２３は、デジタル電気信号を外部（後述する算出装置１３）に出力する機能も有している。なお、電子天秤１１には電流測定部２２や変換送信部２３を制御する制御部（図示せず）が内蔵され、制御部は算出された質量を天秤本体２０の液晶ディスプレイ等に表示する。 As shown in FIG. 3, the balance body 20 includes a rod to which an electromagnetic force is applied from a coil around a magnet, and a current measuring unit 22 for measuring the current flowing through the coil and a current value measured by the current measuring unit 22 ( It has a conversion transmission unit 23 that converts (A / D conversion) a digital electric signal () into a digital electric signal. The current measuring unit 22 changes the electromagnetic force applied to the rod by adjusting the current flowing through the coil, and measures the current value of the coil when it is balanced with the mass of the object placed on the measuring plate 21. The conversion transmission unit 23 A / D-converts the current value of the coil and digitally processes it to calculate the mass of the object placed on the measuring plate 21. Further, the conversion transmission unit 23 also has a function of outputting a digital electric signal to the outside (calculation device 13 described later). The electronic balance 11 has a built-in control unit (not shown) that controls the current measurement unit 22 and the conversion transmission unit 23, and the control unit displays the calculated mass on the liquid crystal display or the like of the balance body 20.

＜離接装置＞
図１に示すように、離接装置１２は、風防容器１０の上面に設けられ、試料５を昇降させるための装置である。離接装置１２は、駆動部３０と、クランク板３１と、細紐３２と、を含んでいる。 <Disconnecting device>
As shown in FIG. 1, the detaching device 12 is provided on the upper surface of the windshield container 10 and is a device for raising and lowering the sample 5. The detaching device 12 includes a driving unit 30, a crank plate 31, and a string 32.

（駆動部）
駆動部３０は、風防容器１０の上面（上部）に設けられている。駆動部３０は、給電されて回転力を生み出す駆動モータ３３と、複数のギア（図示せず）で構成された減速機３４と、を含んでいる。駆動モータ３３は、電池を内蔵した電池ボックス（図示せず）に電気的に接続された所謂ＤＣモータである。駆動モータ３３のピニオンギア（図示せず）は、減速機３４の入力ギアに噛み合っている。駆動モータ３３は、電池から電力の供給を受け、複数のギアを介して減速機３４の最終ギアから延びた回転軸３４Ａを回転させる。減速機３４は、回転軸３４Ａを約２０秒で１回転（周波数：約０．０５Ｈｚ）させるように駆動モータ３３の回転数を減速する。 (Drive part)
The drive unit 30 is provided on the upper surface (upper portion) of the windshield container 10. The drive unit 30 includes a drive motor 33 that is supplied with power to generate rotational force, and a speed reducer 34 that is composed of a plurality of gears (not shown). The drive motor 33 is a so-called DC motor electrically connected to a battery box (not shown) containing a battery. The pinion gear (not shown) of the drive motor 33 meshes with the input gear of the speed reducer 34. The drive motor 33 receives electric power from the battery and rotates the rotary shaft 34A extending from the final gear of the speed reducer 34 via a plurality of gears. The speed reducer 34 decelerates the rotation speed of the drive motor 33 so as to rotate the rotating shaft 34A once in about 20 seconds (frequency: about 0.05 Hz).

（クランク板）
クランク板３１は、回転軸３４Ａから径方向に延びた板状に形成されている。クランク板３１は、駆動部３０の回転軸３４Ａに固定されており、回転軸３４Ａと共に回転する。 (Crank plate)
The crank plate 31 is formed in a plate shape extending in the radial direction from the rotating shaft 34A. The crank plate 31 is fixed to the rotating shaft 34A of the drive unit 30 and rotates together with the rotating shaft 34A.

（細紐）
連結部材の一例としての細紐３２は、綿や毛等の繊維または合成樹脂を細長く引きのばした糸である。細紐３２は、風防容器１０の上面に開いた穴を貫通し、クランク板３１の先端部（回転軸３４Ａから径方向外側にずれた位置）と試料５との間に架設されている。詳細には、細紐３２の上端部はクランク板３１の先端部にあいた穴に結び付けられ、細紐３２の下端部は試料５の先端部にあいた穴に結び付けられている。試料５とクランク板３１とに対する細紐３２の接続部分（結び目）は、細紐３２の回転を許容するように構成されている。細紐３２は、クランク板３１の先端部が最も低い位置にあるときには柔軟に曲がり、且つクランク板３１の先端部が最も高い位置にあるときには張力が作用する長さに形成されている（図１および図４参照）。 (Thin string)
The fine string 32 as an example of the connecting member is a thread obtained by stretching a fiber such as cotton or hair or a synthetic resin into an elongated shape. The string 32 penetrates a hole opened in the upper surface of the windshield container 10 and is erected between the tip end portion of the crank plate 31 (a position displaced radially outward from the rotation shaft 34A) and the sample 5. Specifically, the upper end of the string 32 is tied to the hole in the tip of the crank plate 31, and the lower end of the string 32 is tied to the hole in the tip of the sample 5. The connection portion (knot) of the cord 32 to the sample 5 and the crank plate 31 is configured to allow rotation of the cord 32. The string 32 is formed to have a length that allows it to bend flexibly when the tip of the crank plate 31 is at the lowest position and to exert tension when the tip of the crank plate 31 is at the highest position (FIG. 1). And see Figure 4).

＜算出装置＞
算出装置１３は、例えば、パーソナルコンピュータ（ＰＣ）によって構成されている。図３に示すように、算出装置１３は、演算処理部４０と、記憶部４１と、インターフェース４２と、を含んでいる。演算処理部４０は、記憶部４１に記憶されたソフトウェア（プログラム）やデータ等に従って演算処理を実行する。記憶部４１は、演算処理部４０から直接アクセス可能な主記憶装置と、ソフトウェアやデータ等を保存する補助記憶装置と、を含んでいる。記憶部４１には、ソフトウェアやデータの他、演算処理部４０による演算結果等も記憶されることがある。インターフェース４２には、通信ケーブル４３を介して電子天秤１１（変換送信部２３）が電気的に接続されている。なお、算出装置１３は、ＡＣ−ＤＣ変換回路を介して商用電源に接続されている（図示せず）。 <Calculator>
The calculation device 13 is composed of, for example, a personal computer (PC). As shown in FIG. 3, the calculation device 13 includes an arithmetic processing unit 40, a storage unit 41, and an interface 42. The arithmetic processing unit 40 executes arithmetic processing according to software (program), data, or the like stored in the storage unit 41. The storage unit 41 includes a main storage device that can be directly accessed from the arithmetic processing unit 40, and an auxiliary storage device that stores software, data, and the like. In addition to software and data, the storage unit 41 may store the calculation results of the calculation processing unit 40 and the like. An electronic balance 11 (conversion transmitter 23) is electrically connected to the interface 42 via a communication cable 43. The calculation device 13 is connected to a commercial power supply via an AC-DC conversion circuit (not shown).

算出装置１３は、演算処理結果やデータ等をディスプレイ（図示せず）に表示したり、スピーカ（図示せず）から警告音を発したりする報知機能を有している。なお、請求項に言う「報知部」は、報知機能を実現するためのものであって、演算処理部４０、記憶部４１に記憶されたソフトウェア、ディスプレイおよびスピーカ等によって構成されている。 The calculation device 13 has a notification function of displaying calculation processing results, data, and the like on a display (not shown) and emitting a warning sound from a speaker (not shown). The "notification unit" referred to in the claims is for realizing the notification function, and is composed of software, a display, a speaker, and the like stored in the arithmetic processing unit 40 and the storage unit 41.

［含水率連続測定方法］
次に、図１、図４および図５を参照して、含水率連続測定装置１を用いて試料５の含水率を連続して測定する方法（含水率連続測定方法）について説明する。図４は含水率連続測定装置１の作用を説明する構成図である。図５は含水率連続測定方法を示すアクティビティ図（フローチャート）である。なお、含水率連続測定装置１は、含水率を把握・管理したい段ボール箱を保管している倉庫内に設置されているものとする。 [Continuous measurement method for water content]
Next, a method of continuously measuring the water content of the sample 5 using the water content continuous measuring device 1 (water content continuous measuring method) will be described with reference to FIGS. 1, 4 and 5. FIG. 4 is a configuration diagram illustrating the operation of the water content continuous measuring device 1. FIG. 5 is an activity diagram (flow chart) showing a method for continuously measuring the water content. It is assumed that the water content continuous measuring device 1 is installed in the warehouse where the cardboard boxes for which the water content is to be grasped and managed are stored.

＜準備＞
作業者は、試料５を乾燥機で恒量に達するまで乾燥（絶乾）させ、絶乾時の試料５の質量（絶乾質量）を予め測定し、算出装置１３の記憶部４１に記憶しておく。つまり、この含水率連続測定方法では、試料５の絶乾質量を既知数としておく。なお、試料５が恒量に達した（絶乾した）か否かを判定する基準は、日本工業規格 ＪＩＳ Ｐ ８１２７やＪＩＳ Ｐ ８２０３等の記載による。 <Preparation>
The operator dries the sample 5 with a dryer until it reaches a constant amount (absolute drying), measures the mass of the sample 5 at the time of absolute drying (absolute dry mass) in advance, and stores it in the storage unit 41 of the calculation device 13. back. That is, in this water content continuous measurement method, the absolute dry mass of the sample 5 is set as a known number. The criteria for determining whether or not the sample 5 has reached a constant weight (absolutely dried) are based on the description of Japanese Industrial Standards JIS P 8127, JIS P 8203, and the like.

作業者は、含水率連続測定方法の実施前に、電子天秤１１および算出装置１３の電源を入れ、細紐３２の先端部に接続された試料５を計量皿２１に載置する（図１参照）。なお、クランク板３１の先端部は最も低い位置の周辺にあるものとする（図１参照）。また、電子天秤１１と算出装置１３とが、互いに連動して電源ＯＮ・ＯＦＦするように構成されていてもよい。 Before implementing the water content continuous measurement method, the operator turns on the power of the electronic balance 11 and the calculation device 13, and places the sample 5 connected to the tip of the string 32 on the measuring plate 21 (see FIG. 1). ). The tip of the crank plate 31 is assumed to be around the lowest position (see FIG. 1). Further, the electronic balance 11 and the calculation device 13 may be configured to turn on / off the power in conjunction with each other.

図５に示すように、含水率連続測定方法は、質量連続測定工程Ｓ１と、含水率連続算出工程Ｓ２と、報知工程Ｓ３と、を備えている。 As shown in FIG. 5, the water content continuous measurement method includes a mass continuous measurement step S1, a water content continuous calculation step S2, and a notification step S3.

＜質量連続測定工程＞
質量連続測定工程Ｓ１では、離接装置１２が、計量皿２１に対する試料５の配置と、計量皿２１からの試料５の離間と、を繰り返し行う（図１および図４参照）。具体的には、作業者が離接装置１２の駆動モータ３３の電源を入れると、駆動モータ３３が回転軸３４Ａを中心にクランク板３１を一方向に一定速度で回転させる（図５のＳ１０）。なお、駆動モータ３３の電源ＯＮ・ＯＦＦは、電子天秤１１および算出装置１３の電源ＯＮ・ＯＦＦと連動するようにしてもよい。 <Continuous mass measurement process>
In the mass continuous measurement step S1, the detaching device 12 repeatedly arranges the sample 5 with respect to the measuring dish 21 and separates the sample 5 from the measuring dish 21 (see FIGS. 1 and 4). Specifically, when the operator turns on the power of the drive motor 33 of the detaching device 12, the drive motor 33 rotates the crank plate 31 in one direction around the rotating shaft 34A at a constant speed (S10 in FIG. 5). .. The power ON / OFF of the drive motor 33 may be interlocked with the power ON / OFF of the electronic balance 11 and the calculation device 13.

クランク板３１の先端部が最も低い位置またはその周辺にある場合、細紐３２は弛み、試料５は計量皿２１に載置されている（図１参照）。クランク板３１の回転が進み、細紐３２に張力が作用し始めると、試料５は上方に引っ張られて計量皿２１から離れ始める。更にクランク板３１の回転が進み、クランク板３１の先端部が最も高い位置までくると、試料５は計量皿２１から最も上方に離れた状態になる（図４参照）。また、更にクランク板３１の回転が進むと、試料５が計量皿２１に再び接触し、細紐３２は弛んだ状態になる（図１参照）。 When the tip of the crank plate 31 is at or around the lowest position, the cord 32 is slackened and the sample 5 is placed on the weighing pan 21 (see FIG. 1). As the rotation of the crank plate 31 progresses and tension begins to act on the string 32, the sample 5 is pulled upward and begins to separate from the weighing pan 21. When the rotation of the crank plate 31 further progresses and the tip of the crank plate 31 reaches the highest position, the sample 5 is in a state of being farthest from the measuring plate 21 (see FIG. 4). Further, as the rotation of the crank plate 31 further progresses, the sample 5 comes into contact with the measuring plate 21 again, and the string 32 becomes loose (see FIG. 1).

以上のように、クランク板３１が１回転する毎に、試料５が上下方向に１往復する。したがって、駆動部３０がクランク板３１を一方向に回転させることで、細紐３２を介してクランク板３１に繋がれた試料５が計量皿２１に配置される状態と計量皿２１から離間する状態との間で周期的に（一定間隔で）昇降を繰り返す。第１実施形態では、電源を切るまで（電源ＯＦＦ）、駆動部３０がクランク板３１を一方向に回転させ続ける。具体的には、駆動部３０はクランク板３１を約２０秒で１回転させるため、試料５は約２０秒で上下方向に１往復する。 As described above, each time the crank plate 31 makes one rotation, the sample 5 reciprocates once in the vertical direction. Therefore, when the drive unit 30 rotates the crank plate 31 in one direction, the sample 5 connected to the crank plate 31 via the cord 32 is placed on the measuring plate 21 and separated from the measuring plate 21. Repeats ascending and descending periodically (at regular intervals) between and. In the first embodiment, the drive unit 30 keeps rotating the crank plate 31 in one direction until the power is turned off (power is turned off). Specifically, since the drive unit 30 rotates the crank plate 31 once in about 20 seconds, the sample 5 reciprocates once in the vertical direction in about 20 seconds.

また、質量連続測定工程Ｓ１では、電子天秤１１は、計量皿２１に載せられた試料５の質量を測定する（図５のＳ１１）。試料５が計量皿２１から離れた場合（図４参照）、電子天秤１１は、０ｇまたは０ｇ前後の質量を測定する。すなわち、電子天秤１１は、計量皿２１に試料５を載せている期間に質量の最大値を計測し、計量皿２１から試料５を離間させている期間に質量の最小値を計測することになる。 Further, in the mass continuous measurement step S1, the electronic balance 11 measures the mass of the sample 5 placed on the measuring plate 21 (S11 in FIG. 5). When the sample 5 is separated from the weighing pan 21 (see FIG. 4), the electronic balance 11 measures a mass of about 0 g or 0 g. That is, the electronic balance 11 measures the maximum value of the mass during the period when the sample 5 is placed on the measuring plate 21, and measures the minimum value of the mass during the period when the sample 5 is separated from the measuring plate 21. ..

また、質量連続測定工程Ｓ１では、電子天秤１１の変換送信部２３は、デジタル電気信号に変換された質量データを算出装置１３に定期的（例えば、約２秒毎（サンプリングレート：０．５Ｈｚ））に送信する（図５のＳ１２）。なお、駆動部３０はクランク板３１を約２０秒で１回転させるため、１０個の質量データがクランク板３１の１周分（試料５の上下１往復分）に相当する。 Further, in the mass continuous measurement step S1, the conversion transmission unit 23 of the electronic balance 11 periodically (for example, about every 2 seconds (sampling rate: 0.5 Hz)) transfers the mass data converted into the digital electric signal to the calculation device 13. ) (S12 in FIG. 5). Since the drive unit 30 rotates the crank plate 31 once in about 20 seconds, 10 mass data correspond to one round of the crank plate 31 (one round trip up and down the sample 5).

＜含水率連続算出工程＞
含水率連続算出工程Ｓ２は、質量連続測定工程Ｓ１と並行して実行される。含水率連続算出工程Ｓ２では、算出装置１３が、質量連続測定工程Ｓ１の１周期毎に、電子天秤１１が測定した質量の最大値と最小値との差分から試料５の含水質量を算出する。なお、「質量連続測定工程Ｓ１の１周期毎」とは、「離接装置１２による計量皿２１に対する試料５の配置と離間の１周期毎」という意味であり、言い換えれば「クランク板３１の１周毎」または「試料５の上下１往復」という意味でもある。また、試料５の「含水質量」とは、恒量に達していない（絶乾させていない）水分を含んだ試料５の質量を意味する。 <Continuous calculation process of water content>
The water content continuous calculation step S2 is executed in parallel with the mass continuous measurement step S1. In the water content continuous calculation step S2, the calculation device 13 calculates the water content mass of the sample 5 from the difference between the maximum value and the minimum value of the mass measured by the electronic balance 11 for each cycle of the mass continuous measurement step S1. In addition, "every cycle of the continuous mass measurement step S1" means "every cycle of placement and separation of the sample 5 with respect to the measuring pan 21 by the detaching device 12", in other words, "1 of the crank plate 31". It also means "every lap" or "one round trip up and down the sample 5". Further, the "moisture-containing mass" of the sample 5 means the mass of the sample 5 containing water that has not reached a constant amount (not dried completely).

算出装置１３は、質量データの受信待ち状態となっている（図５のＳ２０でＮＯ）。算出装置１３は、電子天秤１１から質量データを受信すると（図５のＳ２０でＹＥＳ）、受信した質量データの中から最大値と最小値とを選択する（図５のＳ２１）。算出装置１３（演算処理部４０）は、最大値と最小値との差を計算することで試料５の含水質量を算出する（図５のＳ２２）。なお、算出装置１３（演算処理部４０）は、計算結果（含水質量）を記憶部４１に記録する。 The calculation device 13 is in a state of waiting for reception of mass data (NO in S20 of FIG. 5). When the calculation device 13 receives the mass data from the electronic balance 11 (YES in S20 in FIG. 5), the calculation device 13 selects the maximum value and the minimum value from the received mass data (S21 in FIG. 5). The calculation device 13 (calculation processing unit 40) calculates the water content mass of the sample 5 by calculating the difference between the maximum value and the minimum value (S22 in FIG. 5). The calculation device 13 (calculation processing unit 40) records the calculation result (water content mass) in the storage unit 41.

次に、含水率連続算出工程Ｓ２では、算出装置１３が、含水質量と既知数である絶乾質量との差分に基づいて試料５の含水率を算出する（図５のＳ２３）。具体的には、算出装置１３（演算処理部４０）は、下記の式１から含水率を算出する。
（式１） ＷＨ＝（Ｍ０−Ｍ１）÷Ｍ０×１００
ＷＨ：含水率（％）
Ｍ０：含水質量（ｇ）
Ｍ１：絶乾質量（ｇ）
また、算出装置１３は、必要に応じて、算出した含水率をディスプレイに表示し、含水率を記憶部４１に記録する。 Next, in the water content continuous calculation step S2, the calculation device 13 calculates the water content of the sample 5 based on the difference between the water content mass and the known absolute dry mass (S23 in FIG. 5). Specifically, the calculation device 13 (calculation processing unit 40) calculates the water content from the following formula 1.
(Equation 1) WH = (M0-M1) ÷ M0 × 100
WH: Moisture content (%)
M0: Moisture content (g)
M1: Absolute dry mass (g)
Further, the calculation device 13 displays the calculated water content on the display as necessary, and records the water content in the storage unit 41.

次に、報知工程Ｓ３では、算出装置１３が、含水率連続算出工程Ｓ２で算出された含水率が予め設定された条件を満たしたことをユーザに報知する。具体的には、演算処理部４０は、算出された含水率と、記憶部４１に予め記憶された含水率上限値とを比較演算する（図５のＳ２４）。なお、含水率上限値は、例えば、１１〜１３％の範囲で設定されている。算出された含水率が含水率上限値以上である場合（図５のＳ２４でＹＥＳ）、演算処理部４０は、ソフトウェアに従って演算処理を行い、含水率の増加を警告するメッセージをディスプレイに表示したり、スピーカから警告音を鳴らしたりする（図５のＳ２５）。つまり、ユーザに対して含水率が異常であることを報知（警告）する。なお、含水率が含水率上限値未満である場合（図５のＳ２４でＮＯ）、演算処理部４０はユーザに対する報知を行わず、質量データの受信待ち状態（図５のＳ２０）に戻る。 Next, in the notification step S3, the calculation device 13 notifies the user that the water content calculated in the water content continuous calculation step S2 satisfies the preset condition. Specifically, the calculation processing unit 40 performs a comparative calculation between the calculated water content and the water content upper limit value stored in advance in the storage unit 41 (S24 in FIG. 5). The upper limit of the water content is set in the range of 11 to 13%, for example. When the calculated water content is equal to or higher than the upper limit of the water content (YES in S24 in FIG. 5), the arithmetic processing unit 40 performs arithmetic processing according to the software and displays a message warning of an increase in the moisture content on the display. , A warning sound is emitted from the speaker (S25 in FIG. 5). That is, the user is notified (warned) that the water content is abnormal. When the water content is less than the upper limit of the water content (NO in S24 in FIG. 5), the arithmetic processing unit 40 does not notify the user and returns to the state of waiting for reception of mass data (S20 in FIG. 5).

以上によって、含水率連続測定方法における各工程Ｓ１，Ｓ２，Ｓ３の１サイクルが終了する。電子天秤１１、離接装置１２および算出装置１３は、それぞれ、電源ＯＦＦにするまで、上記の各工程Ｓ１，Ｓ２，Ｓ３を繰り返して実行し、含水率を連続的（周期的）に求める。 As a result, one cycle of each step S1, S2, S3 in the water content continuous measurement method is completed. The electronic balance 11, the disconnection device 12, and the calculation device 13 repeatedly execute each of the above steps S1, S2, and S3 until the power is turned off, and continuously (periodically) determine the water content.

［検証試験］
次に、図６および図７を参照して、含水率連続測定方法の効果を確かめるために行った検証試験（比較試験）について説明する。図６は含水率連続測定方法の検証実験［１］の結果を示すグラフである。図７は含水率連続測定方法の検証実験［２］の結果を示すグラフである。 [Verification test]
Next, a verification test (comparative test) conducted to confirm the effect of the water content continuous measurement method will be described with reference to FIGS. 6 and 7. FIG. 6 is a graph showing the results of the verification experiment [1] of the water content continuous measurement method. FIG. 7 is a graph showing the results of the verification experiment [2] of the water content continuous measurement method.

＜検証実験［１］＞
含水率連続測定方法の検証試験［１］では、３つの試料５を、温度２０℃、湿度５０％の環境に２４時間静置させた後、温度４０℃、湿度７０％の環境に置き、それらの試料５を用いて、以下の（１）〜（３）に示す３つの方法で含水率を測定した。
（１）絶乾法（ＪＩＳ Ｐ ８１２７：電子天秤１１で１時間おきに試料５の質量を測定した。測定終了後に絶乾質量を測定して上記の（式１）にて含水率を算出した。）
（２）第１実施形態に係る含水率連続測定方法（２０秒間隔で試料５を昇降させた。）
（３）電子天秤１１に試料５を載せたまま２０秒間隔で質量測定する方法
図６では、上記の方法による測定結果のうち０、１、２、４、６時間経過時における測定結果を抜粋して示している。なお、前提として、絶乾法によって求められた含水率は、非常に精度が高いことが知られている。 <Verification experiment [1]>
In the verification test [1] of the continuous measurement method of water content, three samples 5 were allowed to stand in an environment of temperature 20 ° C. and humidity 50% for 24 hours, and then placed in an environment of temperature 40 ° C. and humidity 70%. The water content was measured by the following three methods (1) to (3) using the sample 5 of the above.
(1) Absolute dry method (JIS P 8127: The mass of the sample 5 was measured every hour with an electronic balance 11. After the measurement was completed, the absolute dry mass was measured and the water content was calculated by the above formula (1). .)
(2) The method for continuously measuring the water content according to the first embodiment (the sample 5 was moved up and down at intervals of 20 seconds).
(3) Method of measuring mass at intervals of 20 seconds with the sample 5 placed on the electronic balance 11 In FIG. 6, the measurement results after 0, 1, 2, 4, and 6 hours have passed from the measurement results by the above method are excerpted. Is shown. As a premise, it is known that the water content obtained by the absolute drying method is extremely accurate.

図６に示すように、全期間において、（２）含水率連続測定方法による含水率の測定結果は、（１）絶乾法による含水率の測定結果と近似していた。一方で、（３）の方法よる含水率の測定結果は、時間が経過するにつれて、（１）絶乾法による含水率の測定結果からの乖離が大きくなっていた。したがって、（３）の方法では、時間が経過すると電子天秤１１のゼロ点がずれてしまうため、正確な資料５の質量を連続的に測定することができず、精度良く試料５の含水率を求めることができないことが確認された。これに対し、第１実施形態に係る含水率連続測定方法では、精度良く含水率を求められることが確認された。 As shown in FIG. 6, the measurement result of the water content by the continuous measurement method of the water content (2) was close to the measurement result of the water content by the absolute dry method over the entire period. On the other hand, the measurement result of the water content by the method (3) has a large deviation from the measurement result of the water content by the (1) absolute dry method as time passes. Therefore, in the method (3), since the zero point of the electronic balance 11 shifts over time, it is not possible to continuously measure the mass of the document 5 accurately, and the water content of the sample 5 can be accurately measured. It was confirmed that it could not be requested. On the other hand, it was confirmed that the water content continuous measurement method according to the first embodiment can accurately obtain the water content.

＜検証実験［２］＞
次に、含水率連続測定方法の検証試験［２］では、温度４０℃で湿度が異なる（８０％、９０％、９５％）環境に２４時間静置させた２つの試料５を用いて、以下の（１）〜（３）に示す３つの方法で含水率を測定した。
（１）絶乾法（ＪＩＳ Ｐ ８１２７）
（２）第１実施形態に係る含水率連続測定方法
（３）電気抵抗式水分計（サンコウ電子研究所製ＭＲ−２００ＩＩ）の使用 <Verification experiment [2]>
Next, in the verification test [2] of the continuous measurement method of water content, two samples 5 which were allowed to stand for 24 hours in an environment where the temperature was 40 ° C. and the humidity was different (80%, 90%, 95%) were used as follows. The water content was measured by the three methods shown in (1) to (3).
(1) Absolute drying method (JIS P 8127)
(2) Continuous measurement method of water content according to the first embodiment (3) Use of an electric resistance type moisture meter (MR-200II manufactured by Sanko Denshi Kenkyusho)

図７に示すように、全ての環境下において、（１）絶乾法と（２）含水率連続測定方法とによる含水率の測定結果は近似していたが、（３）電気抵抗式水分計による含水率の測定結果は、他の２つの方法の測定結果に比べて、大きくずれていた。したがって、電気抵抗式水分計では、精度良く試料５の含水率を求めることができないことが確認された。一方で、第１実施形態に係る含水率連続測定方法では、精度良く含水率を求められることが確認された。 As shown in FIG. 7, under all environments, the measurement results of the water content by (1) absolute drying method and (2) continuous water content measurement method were similar, but (3) electric resistance type moisture meter. The measurement result of the water content by the method was significantly different from the measurement result of the other two methods. Therefore, it was confirmed that the electric resistance type moisture meter cannot accurately determine the water content of the sample 5. On the other hand, it was confirmed that the water content continuous measurement method according to the first embodiment can accurately obtain the water content.

以上説明した第１実施形態に係る含水率連続測定方法（含水率連続測定装置１）では、試料５が電子天秤１１の計量皿２１に対する配置と離間を繰り返していた。試料５が計量皿２１に置かれている期間に電子天秤１１が最大質量を計測し、試料５が計量皿２１から離れている期間に電子天秤１１が最小質量を計測していた。これにより、電子天秤１１のゼロ点がずれていたとしても、最大質量と最小質量との差から正確な試料５の含水質量を求めることができる。 In the water content continuous measurement method (moisture content continuous measurement device 1) according to the first embodiment described above, the sample 5 is repeatedly arranged and separated from the measuring tray 21 of the electronic balance 11. The electronic balance 11 measured the maximum mass while the sample 5 was placed on the measuring plate 21, and the electronic balance 11 measured the minimum mass while the sample 5 was away from the measuring plate 21. As a result, even if the zero point of the electronic balance 11 is deviated, the accurate water content mass of the sample 5 can be obtained from the difference between the maximum mass and the minimum mass.

また、質量連続測定工程Ｓ１の周期に連動するように、一定間隔で試料５の含水質量を求めることができる。これにより、求めた含水質量と既知の絶乾質量との差分から試料５の含水率を連続的に（一定間隔で）精度良く測定することができる。その結果、含水率連続測定装置１を設置した環境下（倉庫内）において、段ボール箱の含水率の経時的な変化を把握することができ、段ボール箱の胴膨れや潰れ（座屈）等の問題発生を事前に予測することができ、この対応策を講ずることが可能になる。 Further, the water content mass of the sample 5 can be obtained at regular intervals so as to be linked to the cycle of the mass continuous measurement step S1. Thereby, the water content of the sample 5 can be continuously (at regular intervals) and accurately measured from the difference between the obtained water content mass and the known absolute dry mass. As a result, in the environment (inside the warehouse) where the water content continuous measuring device 1 is installed, it is possible to grasp the change over time in the water content of the corrugated cardboard box, and the corrugated cardboard box is swelled or crushed (buckling). It is possible to predict the occurrence of a problem in advance and take this countermeasure.

また、第１実施形態に係る含水率連続測定方法（含水率連続測定装置１）によれば、例えば、異常に高い含水率（例えば１１〜１３％以上）を予め設定した条件とすることで、試料５の含水率が異常に増加したことをユーザに通知することができる。これにより、ユーザは段ボール箱に胴膨れ等の問題が発生する可能性を明確に知ることができる。 Further, according to the water content continuous measurement method (water content continuous measurement device 1) according to the first embodiment, for example, an abnormally high water content (for example, 11 to 13% or more) can be set as a preset condition. It is possible to notify the user that the water content of the sample 5 has increased abnormally. This allows the user to clearly know the possibility of problems such as swelling of the cardboard box.

また、第１実施形態に係る含水率連続測定装置１によれば、試料５および電子天秤１１を風防容器１０内に収めることで、試料５の質量測定時において風による悪影響を抑えることができる。また、離接装置１２では、駆動モータ３３がクランク板３１を一方向に回転させるという簡単な構造で、試料５の昇降動作を繰り返すことができる。 Further, according to the water content continuous measuring device 1 according to the first embodiment, by housing the sample 5 and the electronic balance 11 in the windshield container 10, it is possible to suppress the adverse effect of wind when measuring the mass of the sample 5. Further, in the detaching device 12, the drive motor 33 has a simple structure in which the crank plate 31 is rotated in one direction, and the raising and lowering operation of the sample 5 can be repeated.

なお、第１実施形態に係る含水率連続測定装置１（含水率連続測定方法）では、算出装置１３が、含水率連続算出工程Ｓ２において、質量連続測定工程Ｓ１の１周期毎に試料５の含水質量を測定していたが、本発明はこれに限定されない。算出装置１３は、含水率連続算出工程Ｓ２において、質量連続測定工程Ｓ１の所定周期毎に、電子天秤１１が測定した質量の最大値と最小値との差分から試料５の含水質量を算出すればよく、例えば、３〜４周期毎に（３〜４周期分の質量データに基づいて）試料５の含水質量を算出してもよい。なお、本明細書において、「所定周期毎」とは、ユーザが実験的または経験的に予め設定した周期であって、ユーザが希望する含水率連続測定の間隔に応じて１周期以上で自由に設定することができる。 In the water content continuous measurement device 1 (water content continuous measurement method) according to the first embodiment, the calculation device 13 in the water content continuous calculation step S2, the water content of the sample 5 is contained in each cycle of the mass continuous measurement step S1. Although the mass was measured, the present invention is not limited to this. If the calculation device 13 calculates the water content of the sample 5 from the difference between the maximum value and the minimum value of the mass measured by the electronic balance 11 in each predetermined cycle of the mass continuous measurement step S1 in the water content continuous calculation step S2. Frequently, for example, the water content mass of the sample 5 may be calculated every 3 to 4 cycles (based on the mass data for 3 to 4 cycles). In addition, in this specification, "every predetermined cycle" is a cycle preset experimentally or empirically by the user, and is freely set to one cycle or more according to the interval of continuous measurement of water content desired by the user. Can be set.

また、第１実施形態に係る含水率連続測定方法の報知工程Ｓ３では、算出された含水率と含水率上限値とを比較演算していたが（図５のＳ２４）、本発明はこれに限定されない。例えば、段ボール箱の含水率が低下し過ぎると反りや罫割れ等の問題が発生するため、含水率下限値（例えば５〜６％）を記憶部４１に予め記憶しておき、報知工程Ｓ３において、演算処理部４０は、含水率と含水率下限値とを比較演算し、含水率が含水率下限値以下である場合にユーザに報知してもよい（図示せず）。また、例えば、報知工程Ｓ３において、演算処理部４０は、含水率と含水率上限値・含水率下限値とを比較演算し、含水率が含水率上限値以上または含水率下限値以下である場合にユーザに報知してもよい（図示せず）。 Further, in the notification step S3 of the water content continuous measurement method according to the first embodiment, the calculated water content and the water content upper limit value are compared and calculated (S24 in FIG. 5), but the present invention is limited to this. Not done. For example, if the water content of the cardboard box is too low, problems such as warpage and cracking of the ruled lines will occur. Therefore, the lower limit of the water content (for example, 5 to 6%) is stored in advance in the storage unit 41, and in the notification step S3. The calculation processing unit 40 may perform a comparative calculation between the water content and the lower limit of the water content, and notify the user when the water content is equal to or less than the lower limit of the water content (not shown). Further, for example, in the notification step S3, the arithmetic processing unit 40 performs a comparative calculation between the water content and the water content upper limit value / water content lower limit value, and the water content is equal to or more than the water content upper limit value or water content lower limit value or less. May be notified to the user (not shown).

［第２実施形態］
次に、図８を参照して、第２実施形態に係る含水率連続測定装置２（含水率連続測定方法）について説明する。図８は含水率連続測定装置２の電子天秤１４および算出装置１３を示すブロック図である。なお、以下の説明では、第１実施形態に係る含水率連続測定装置１（含水率連続測定方法）と同様または対応する構成（工程）については同一の符号を付し、含水率連続測定装置１（含水率連続測定方法）と同様または対応する説明は省略する。 [Second Embodiment]
Next, with reference to FIG. 8, the water content continuous measuring device 2 (water content continuous measuring method) according to the second embodiment will be described. FIG. 8 is a block diagram showing an electronic balance 14 and a calculation device 13 of the water content continuous measurement device 2. In the following description, the same or corresponding configurations (steps) as the water content continuous measuring device 1 (water content continuous measuring method) according to the first embodiment are designated by the same reference numerals, and the water content continuous measuring device 1 is designated. The same or corresponding description as in (Continuous measurement method of water content) is omitted.

第２実施形態に係る含水率連続測定装置２の電子天秤１４は、計量皿２１から試料５を離間させる度に電子天秤１４のゼロ点補正を行う補正部２４を含んでいる。なお、「ゼロ点補正」とは、電子天秤１４の計量皿２１に何も載せていない状態で電子天秤１４の表示が０（ゼロ）にすることを意味する。例えば、補正部２４は、変換送信部２３によって算出された質量が０ｇに近づき、０ｇ前後の算出結果が所定時間（例えば０．５〜１秒程度）継続する場合に、ゼロ点補正を実行する。 The electronic balance 14 of the water content continuous measuring device 2 according to the second embodiment includes a correction unit 24 that corrects the zero point of the electronic balance 14 each time the sample 5 is separated from the measuring plate 21. The "zero point correction" means that the display of the electronic balance 14 is set to 0 (zero) when nothing is placed on the measuring plate 21 of the electronic balance 14. For example, the correction unit 24 executes zero point correction when the mass calculated by the conversion transmission unit 23 approaches 0 g and the calculation result of around 0 g continues for a predetermined time (for example, about 0.5 to 1 second). ..

なお、計量皿２１上の試料５を検知する輝度センサ等を設け、この輝度センサの出力に基づいて補正部２４がゼロ点補正を実行してもよい。例えば、輝度センサは、計量皿２１に試料５を載せると出力が低下し、計量皿２１から試料５を離すと出力が上昇する。補正部２４は、輝度センサの出力変化に基づいて試料５が計量皿２１から離れたことを判定し、ゼロ点補正を実行してもよい。また、タイマー制御で、一定時間経過後にゼロ点補正を実行してもよい。 A luminance sensor or the like for detecting the sample 5 on the measuring plate 21 may be provided, and the correction unit 24 may perform zero point correction based on the output of the luminance sensor. For example, the output of the luminance sensor decreases when the sample 5 is placed on the measuring plate 21, and increases when the sample 5 is separated from the measuring plate 21. The correction unit 24 may determine that the sample 5 has moved away from the measuring plate 21 based on the output change of the luminance sensor, and may execute the zero point correction. Further, the zero point correction may be executed after a certain period of time by timer control.

［含水率連続測定方法］
次に、図９を参照して、含水率連続測定装置２を用いて試料５の含水率を連続して測定する方法（含水率連続測定方法）について説明する。図９は含水率連続測定方法を示すアクティビティ図（フローチャート）である。 [Continuous measurement method for water content]
Next, with reference to FIG. 9, a method of continuously measuring the water content of the sample 5 using the water content continuous measuring device 2 (water content continuous measuring method) will be described. FIG. 9 is an activity diagram (flow chart) showing a method for continuously measuring the water content.

含水率連続測定方法は、質量連続測定工程Ｓ１と、補正工程Ｓ４と、含水率連続算出工程Ｓ２´と、報知工程Ｓ３と、を備えている。 The water content continuous measurement method includes a mass continuous measurement step S1, a correction step S4, a water content continuous calculation step S2', and a notification step S3.

＜質量連続測定工程＞
まず、第１実施形態に係る含水率連続測定方法と同様に、質量連続測定工程Ｓ１を実行する。なお、質量連続測定工程Ｓ１において、１回目の質量測定の前に、電子天秤１４はゼロ点補正されているものとする。 <Continuous mass measurement process>
First, the mass continuous measurement step S1 is executed in the same manner as in the water content continuous measurement method according to the first embodiment. In the continuous mass measurement step S1, it is assumed that the electronic balance 14 is zero-point corrected before the first mass measurement.

＜補正工程＞
補正工程Ｓ４は、質量連続測定工程Ｓ１と並行して実行される。正確には、質量連続測定工程Ｓ１において駆動モータ３３によってクランク板３１が回転し、細紐３２に張力が作用し始め、試料５が計量皿２１から離れ始めると、補正工程Ｓ４が開始される。補正工程Ｓ４では、質量０ｇ前後（例えば０ｇ±０．１ｇ程度）となる測定結果が所定時間（例えば０．５〜１秒程度）継続すると（図９のＳ１３でＹＥＳ）、電子天秤１４の補正部２４がゼロ点補正を実行し（図９のＳ１４）、その後、試料５の質量測定（図９のＳ１１）に戻る。なお、補正工程Ｓ４では、質量０ｇ前後となっていない、または、質量０ｇ前後となる測定結果が所定時間経過していない場合（図９のＳ１３でＮＯ）、試料５の質量測定（図９のＳ１１）に戻る。 <Correction process>
The correction step S4 is executed in parallel with the mass continuous measurement step S1. To be precise, in the mass continuous measurement step S1, the crank plate 31 is rotated by the drive motor 33, tension starts to act on the string 32, and when the sample 5 starts to separate from the measuring plate 21, the correction step S4 is started. In the correction step S4, when the measurement result having a mass of about 0 g (for example, about 0 g ± 0.1 g) continues for a predetermined time (for example, about 0.5 to 1 second) (YES in S13 of FIG. 9), the electronic balance 14 is corrected. The unit 24 performs zero point correction (S14 in FIG. 9), and then returns to the mass measurement of the sample 5 (S11 in FIG. 9). In the correction step S4, when the mass is not around 0 g or the measurement result having a mass of around 0 g has not elapsed for a predetermined time (NO in S13 of FIG. 9), the mass of the sample 5 is measured (FIG. 9). Return to S11).

＜含水率連続算出工程＞
含水率連続算出工程Ｓ２´は、質量連続測定工程Ｓ１および補正工程Ｓ４と並行して実行される。含水率連続算出工程Ｓ２´では、算出装置１３（演算処理部４０）が、質量連続測定工程Ｓ１の１周期毎に、電子天秤１４が測定した質量の最大値を試料５の含水質量とし（図９のＳ２１´）、その含水質量を記憶部４１に記録する。第２実施形態に係る含水率連続算出工程Ｓ２´では、電子天秤１４が試料５の質量計測前にゼロ点補正されているため、電子天秤１４が測定した質量の最大値を試料５の含水質量とみなすことができる。 <Continuous calculation process of water content>
The water content continuous calculation step S2'is executed in parallel with the mass continuous measurement step S1 and the correction step S4. In the water content continuous calculation step S2', the calculation device 13 (calculation processing unit 40) sets the maximum value of the mass measured by the electronic balance 14 as the water content mass of the sample 5 in each cycle of the mass continuous measurement step S1 (FIG. 9 S21'), the water content mass thereof is recorded in the storage unit 41. In the water content continuous calculation step S2'according to the second embodiment, since the electronic balance 14 is zero-point corrected before the mass measurement of the sample 5, the maximum value of the mass measured by the electronic balance 14 is the water content mass of the sample 5. Can be regarded as.

また、含水率連続算出工程Ｓ２´では、算出装置１３が、含水質量と既知数である絶乾質量との差分に基づいて試料５の含水率を算出する（図９のＳ２３）。具体的には、算出装置１３（演算処理部４０）は上記した式１から含水率を算出し、必要に応じて、その含水率をディスプレイに表示し、含水率を記憶部４１に記録する。 Further, in the water content continuous calculation step S2', the calculation device 13 calculates the water content of the sample 5 based on the difference between the water content mass and the known absolute dry mass (S23 in FIG. 9). Specifically, the calculation device 13 (calculation processing unit 40) calculates the water content from the above formula 1, displays the water content on the display, and records the water content in the storage unit 41, if necessary.

＜報知工程＞
次に、第１実施形態に係る含水率連続測定方法と同様に、報知工程Ｓ３を実行する。 <Notification process>
Next, the notification step S3 is executed in the same manner as in the water content continuous measurement method according to the first embodiment.

以上によって、含水率連続測定方法における各工程Ｓ１，Ｓ４，Ｓ２´，Ｓ３の１サイクルが終了する。電子天秤１４、離接装置１２および算出装置１３は、それぞれ、電源ＯＦＦにするまで、上記の各工程Ｓ１，Ｓ４，Ｓ２´，Ｓ３を繰り返して実行し、含水率を連続的（周期的）に求める。 As a result, one cycle of each step S1, S4, S2', S3 in the water content continuous measurement method is completed. The electronic balance 14, the disconnection device 12, and the calculation device 13 repeatedly execute the above steps S1, S4, S2', and S3 until the power is turned off, respectively, to continuously (periodically) increase the water content. Ask.

以上説明した第２実施形態に係る含水率連続測定方法（含水率連続測定装置２）では、試料５が電子天秤１４の計量皿２１に対する配置と離間を繰り返し、補正部２４が、計量皿２１から試料５を離間させる度に電子天秤１４のゼロ点補正を行っていた。この構成によれば、試料５は常にゼロ点補正された電子天秤１４の計量皿２１に載せられるため、電子天秤１４が測定した最大質量を試料５の含水質量とみなすことができる。これにより、電子天秤１４は正確な試料５の含水質量を連続的に測定することができる。その結果、この含水質量と既知の絶乾質量との差分から試料５の含水率を連続的に精度良く測定することができる。 In the water content continuous measurement method (moisture content continuous measurement device 2) according to the second embodiment described above, the sample 5 is repeatedly arranged and separated from the measuring plate 21 of the electronic balance 14, and the correction unit 24 is moved from the measuring plate 21. The zero point correction of the electronic balance 14 was performed every time the sample 5 was separated. According to this configuration, since the sample 5 is always placed on the measuring plate 21 of the electronic balance 14 corrected to the zero point, the maximum mass measured by the electronic balance 14 can be regarded as the water content mass of the sample 5. As a result, the electronic balance 14 can continuously measure the water content mass of the sample 5 accurately. As a result, the water content of the sample 5 can be continuously and accurately measured from the difference between the water content mass and the known absolute dry mass.

なお、第２実施形態に係る含水率連続測定装置２では、補正部２４が、電子天秤１４に含まれていたが、本発明はこれに限定されない。補正部（図示せず）は、算出装置１３の機能として含まれていてもよい。この場合、補正部は、演算処理部４０および記憶部４１に記憶されたソフトウェア等によって構成される。この補正部は、算出装置１３が受信した質量データの中で最小値となるものを認識すると、試料５が計量皿２１から離れたものと判断して電子天秤１４にリセット信号を送信する。電子天秤１４は、リセット信号を受信すると、ゼロ点補正を実行する。 In the water content continuous measuring device 2 according to the second embodiment, the correction unit 24 is included in the electronic balance 14, but the present invention is not limited to this. The correction unit (not shown) may be included as a function of the calculation device 13. In this case, the correction unit is composed of software and the like stored in the arithmetic processing unit 40 and the storage unit 41. When the correction unit recognizes the minimum value of the mass data received by the calculation device 13, it determines that the sample 5 is separated from the measuring plate 21 and transmits a reset signal to the electronic balance 14. Upon receiving the reset signal, the electronic balance 14 performs zero point correction.

また、第２実施形態に係る含水率連続測定装置２（含水率連続測定方法）では、補正部２４が計量皿２１から試料５を離間させる度にゼロ点補正を行っていたが、本発明はこれに限定されない。補正部２４は、補正工程Ｓ４において、質量連続測定工程Ｓ１の所定周期毎に、計量皿２１から試料５を離間させた際に電子天秤１４のゼロ点補正を行えばよく、例えば、３〜４周期毎に電子天秤１４のゼロ点補正を行ってもよい。 Further, in the water content continuous measuring device 2 (water content continuous measuring method) according to the second embodiment, the correction unit 24 corrects the zero point every time the sample 5 is separated from the measuring dish 21, but the present invention presents the present invention. Not limited to this. In the correction step S4, the correction unit 24 may perform zero point correction of the electronic balance 14 when the sample 5 is separated from the measuring pan 21 at predetermined cycles of the mass continuous measurement step S1, for example, 3 to 4. The zero point correction of the electronic balance 14 may be performed every cycle.

また、第２実施形態に係る含水率連続測定装置２（含水率連続測定方法）では、算出装置１３が、含水率連続算出工程Ｓ２´において、質量連続測定工程Ｓ１の１周期毎に試料５の含水質量を測定していたが、本発明はこれに限定されない。算出装置１３は、含水率連続算出工程Ｓ２´において、質量連続測定工程Ｓ１の所定周期毎に、電子天秤１１が測定した質量の最大値を試料５の含水質量とすればよく、例えば、３〜４周期毎に（３〜４周期分の質量データに基づいて）試料５の含水質量を求めてもよい。 Further, in the water content continuous measurement device 2 (water content continuous measurement method) according to the second embodiment, the calculation device 13 in the water content continuous calculation step S2'in each cycle of the mass continuous measurement step S1 of the sample 5. Although the water content mass has been measured, the present invention is not limited to this. In the water content continuous calculation step S2'in the calculation device 13, the maximum value of the mass measured by the electronic balance 11 may be set as the water content mass of the sample 5 in each predetermined cycle of the mass continuous measurement step S1, for example, 3 to 3. The water content mass of the sample 5 may be determined every 4 cycles (based on the mass data for 3 to 4 cycles).

なお、第１および第２実施形態に係る含水率連続測定装置１，２では、駆動部３０の駆動モータ３３等が、風防容器１０の上面に載せられていたが、これに限らず、例えば、風防容器１０の天面から吊り下げられていてもよい（図示せず）。また、駆動モータ３３は、電池から電力を受けていたが、これに代えて、ＡＣ−ＤＣ変換回路を介して商用電源に接続されてもよい。 In the water content continuous measuring devices 1 and 2 according to the first and second embodiments, the drive motor 33 and the like of the drive unit 30 are mounted on the upper surface of the windshield container 10, but the present invention is not limited to this, for example. It may be suspended from the top surface of the windshield container 10 (not shown). Further, although the drive motor 33 receives electric power from the battery, it may be connected to a commercial power source via an AC-DC conversion circuit instead.

また、第１および第２実施形態に係る含水率連続測定装置１，２では、駆動部３０が、駆動モータ３３（ＤＣモータ）と減速機３４とで構成されていたが、本発明はこれに限定されない。例えば、駆動部は、サーボモータ、ソレノイドまたはピストン・シリンダ機構等で構成されてもよい（いずれも図示せず）。 Further, in the water content continuous measuring devices 1 and 2 according to the first and second embodiments, the drive unit 30 is composed of a drive motor 33 (DC motor) and a speed reducer 34. Not limited. For example, the drive unit may be composed of a servomotor, a solenoid, a piston / cylinder mechanism, or the like (none of which is shown).

また、第１および第２実施形態に係る含水率連続測定装置１，２では、駆動部３０がクランク板３１を約２０秒で１回転（試料５を１往復）させていたが、本発明はこれに限定されない。駆動部３０がクランク板３１を１回転（試料５を１往復）させる時間（周期）は、ユーザの希望に応じて自由に設定することができる。クランク板３１を１回転させる時間を変更するには、例えば、減速機３４の減速比を変更したり、駆動モータ３３に供給する電流を制御したりすればよい。他にも、サーボモータを用いた場合には、算出装置１３がサーボモータの出力軸（クランク板３１）の回転角度を制御してもよい。 Further, in the water content continuous measuring devices 1 and 2 according to the first and second embodiments, the drive unit 30 rotates the crank plate 31 once in about 20 seconds (one reciprocation of the sample 5). Not limited to this. The time (cycle) for the drive unit 30 to rotate the crank plate 31 once (one reciprocation of the sample 5) can be freely set according to the user's wishes. In order to change the time for rotating the crank plate 31 once, for example, the reduction ratio of the speed reducer 34 may be changed, or the current supplied to the drive motor 33 may be controlled. In addition, when a servomotor is used, the calculation device 13 may control the rotation angle of the output shaft (crank plate 31) of the servomotor.

また、第１および第２実施形態に係る含水率連続測定装置１，２では、駆動モータ３３がクランク板３１を回転させ続けていたが、本発明はこれに限定されない。例えば、算出装置１３が駆動モータ３３の駆動時間をタイマー制御して、クランク板３１を１回転させる動作を、所定時間（数十秒から数十時間）が経過する度に繰り返すように設定されてもよい。つまり、試料５を１往復させる動作が間欠的に実施されてもよい。 Further, in the water content continuous measuring devices 1 and 2 according to the first and second embodiments, the drive motor 33 continues to rotate the crank plate 31, but the present invention is not limited to this. For example, the calculation device 13 controls the drive time of the drive motor 33 by a timer, and is set to repeat the operation of rotating the crank plate 31 once every time a predetermined time (several tens of seconds to several tens of hours) elapses. May be good. That is, the operation of reciprocating the sample 5 once may be performed intermittently.

［第１変形例］
以上説明した第１および第２実施形態に係る含水率連続測定装置１，２（含水率連続測定方法）では、離接装置１２（質量連続測定工程Ｓ１）が一定間隔で試料５を昇降させていたが、本発明はこれに限定されない。例えば、第１および第２実施形態の第１変形例に係る含水率連続測定装置１，２（含水率連続測定方法）として、離接装置１２は、環境湿度の増加または減少に伴って試料５の配置と離間の周期、つまり、質量連続測定工程Ｓ１の周期を短くしてもよい。つまり、環境湿度に応じて、質量連続測定工程Ｓ１の周期を変更（調整）してもよい。この場合、離接装置１２（駆動モータ３３）は、算出装置１３（インターフェース４２）に電気的に接続され、算出装置１３によって駆動制御されることが好ましい。 [First modification]
In the water content continuous measuring devices 1 and 2 (water content continuous measuring method) according to the first and second embodiments described above, the detaching device 12 (mass continuous measuring step S1) raises and lowers the sample 5 at regular intervals. However, the present invention is not limited to this. For example, as the water content continuous measuring devices 1 and 2 (water content continuous measuring method) according to the first modification of the first and second embodiments, the detaching device 12 is a sample 5 as the environmental humidity increases or decreases. The cycle of arrangement and separation, that is, the cycle of the continuous mass measurement step S1 may be shortened. That is, the cycle of the mass continuous measurement step S1 may be changed (adjusted) according to the environmental humidity. In this case, it is preferable that the disconnection device 12 (drive motor 33) is electrically connected to the calculation device 13 (interface 42) and is driven and controlled by the calculation device 13.

クランク板３１を回転させ続ける場合、駆動モータ３３の回転速度を変更して質量連続測定工程Ｓ１の周期を調整する。一方、クランク板３１を間欠的に回転させる場合、算出装置１３が駆動モータ３３の駆動時間をタイマー制御して、クランク板３１を１回転させる間隔（頻度）を調整する。また、環境湿度の判定法としては、例えば、算出装置１３の記憶部４１に、含水率上限値（例えば１１〜１３％）と含水率下限値（例えば５〜６％）とを予め記憶しておき、演算処理部４０が、算出した含水率と含水率上限値・含水率下限値とを比較演算する。算出装置１３は、含水率が含水率上限値以上または含水率下限値以下であれば環境湿度が異常に高いまたは低いと判定する。他の判定法として、湿度を示す電気信号を出力可能な湿度計を、算出装置１３（インターフェース４２）に電気的に接続し、湿度計の出力に基づいて環境湿度を判定してもよい。 When the crank plate 31 is continuously rotated, the rotation speed of the drive motor 33 is changed to adjust the cycle of the mass continuous measurement step S1. On the other hand, when the crank plate 31 is rotated intermittently, the calculation device 13 controls the drive time of the drive motor 33 by a timer to adjust the interval (frequency) for rotating the crank plate 31 once. Further, as a method for determining the environmental humidity, for example, the upper limit value of the water content (for example, 11 to 13%) and the lower limit value of the water content (for example, 5 to 6%) are stored in advance in the storage unit 41 of the calculation device 13. The calculation processing unit 40 compares and calculates the calculated water content with the water content upper limit value and the water content lower limit value. The calculation device 13 determines that the environmental humidity is abnormally high or low if the water content is equal to or higher than the upper limit of the water content or lower than the lower limit of the water content. As another determination method, a hygrometer capable of outputting an electric signal indicating humidity may be electrically connected to the calculation device 13 (interface 42), and the environmental humidity may be determined based on the output of the hygrometer.

以上説明した第１変形例に係る含水率連続測定装置１，２（含水率連続測定方法）によれば、環境湿度が高いまたは低い場合に質量連続測定工程Ｓ１の周期を短縮することで、試料５の含水率の経時的な変化を詳細に把握することができる。これにより、雨季等で環境湿度が高い時期や乾季で環境湿度が低い時期に、段ボール箱に発生し得る問題を抑制する対策を講ずることができる。なお、適切な環境湿度（例えば、３０〜７０％）である場合には、段ボール箱に胴膨れ等が発生する可能性が低いため、含水率の測定間隔（質量連続測定工程Ｓ１の周期）を長くすることで、含水率連続測定装置１，２の消費電力を削減することもできる。 According to the water content continuous measuring devices 1 and 2 (water content continuous measuring method) according to the first modification described above, the sample is shortened by shortening the cycle of the mass continuous measuring step S1 when the environmental humidity is high or low. It is possible to grasp in detail the change in the water content of 5 with time. As a result, it is possible to take measures to suppress problems that may occur in the cardboard box during the period when the environmental humidity is high such as in the rainy season or when the environmental humidity is low in the dry season. If the environmental humidity is appropriate (for example, 30 to 70%), it is unlikely that the corrugated cardboard box will swell, so the water content measurement interval (cycle of the continuous mass measurement step S1) should be set. By lengthening the length, the power consumption of the water content continuous measuring devices 1 and 2 can be reduced.

［第２変形例］
なお、第１および第２実施形態（第１変形例を含む。）に係る含水率連続測定装置１，２では、連結部材の一例として、細紐３２が採用されていたが、本発明はこれに限定されない。例えば、図１０に示すように、他の離接装置１５は、柔軟に曲がらない棒状または板状の連結部材３５を有している（第２変形例）。この場合、試料５には突起部５Ｃが突設され、連結部材３５には突起部５Ｃが嵌り込む長穴３５Ａが形成され、その長穴３５Ａの範囲で突起部５Ｃが移動するように構成することが好ましい（図１０の二点鎖線参照）。 [Second modification]
In the water content continuous measuring devices 1 and 2 according to the first and second embodiments (including the first modification), the fine string 32 was adopted as an example of the connecting member, but the present invention has this. Not limited to. For example, as shown in FIG. 10, another detaching device 15 has a rod-shaped or plate-shaped connecting member 35 that does not bend flexibly (second modification). In this case, the protrusion 5C is projected from the sample 5, a long hole 35A into which the protrusion 5C is fitted is formed in the connecting member 35, and the protrusion 5C is configured to move within the range of the long hole 35A. It is preferable (see the two-dot chain line in FIG. 10).

また、第１および第２実施形態（第１および第２変形例を含む。）に係る含水率連続測定装置１，２では、細紐３２や連結部材３５の先端部が試料５の上部に直接接続されていたが、本発明はこれに限定されない。例えば、細紐３２等の先端部は、試料５の上部に固定した環状の針金等を介して接続されてもよい（図示せず）。他にも、例えば、試料５を載せるトレイ（図示せず）を別途設け、細紐３２等の先端部をトレイに接続してもよい。 Further, in the water content continuous measuring devices 1 and 2 according to the first and second embodiments (including the first and second modifications), the tips of the string 32 and the connecting member 35 are directly on the upper part of the sample 5. Although connected, the invention is not limited to this. For example, the tip of the string 32 or the like may be connected via an annular wire or the like fixed to the upper part of the sample 5 (not shown). Alternatively, for example, a tray (not shown) on which the sample 5 is placed may be separately provided, and the tip end portion of the thin string 32 or the like may be connected to the tray.

［第３変形例］
また、第１および第２実施形態（第１および第２変形例を含む。）に係る含水率連続測定装置１，２では、離接装置１２，１５が、細紐３２や連結部材３５で試料５を吊り下げる方式であったが、本発明はこれに限定されない。例えば、図１１に示すように、他の離接装置１６は、電子天秤１１，１４を挟んで対向配置された複数（図１１では２つ）のエアーシリンダ３６（ピストン・シリンダ機構）と、複数のエアーシリンダ３６に架設され、試料５を載置するプレート３７と、を有している（第３変形例）。なお、図１１では風防容器１０の図示を省略している。また、エアーシリンダ３６の数は自由に変更してもよい。 [Third modification example]
Further, in the water content continuous measuring devices 1 and 2 according to the first and second embodiments (including the first and second modifications), the detaching devices 12 and 15 are samples with the string 32 and the connecting member 35. Although it was a method of suspending 5, the present invention is not limited to this. For example, as shown in FIG. 11, the other detaching devices 16 include a plurality of air cylinders 36 (piston cylinder mechanism) arranged opposite to each other with the electronic balances 11 and 14 interposed therebetween (two in FIG. 11). It is erected on the air cylinder 36 of the above and has a plate 37 on which the sample 5 is placed (third modification). Note that FIG. 11 omits the illustration of the windshield container 10. Further, the number of air cylinders 36 may be freely changed.

各エアーシリンダ３６は、上下方向に往復移動するピストンロッド３６Ａを含んでいる。プレート３７は、複数のピストンロッド３６Ａの先端部に載せられている（または固定されている）。複数のエアーシリンダ３６は複数のピストンロッド３６Ａを同期して昇降を繰り返すことで、プレート３７は電子天秤１１，１４の計量皿２１に載る位置と離れる位置との間で昇降を繰り返す。試料５はプレート３７を介して計量皿２１上に配置され、電子天秤１１，１４は試料５とプレート３７との質量を測定する。算出装置１３の記憶部４１にはプレート３７の質量が予め記憶されており、算出装置１３は測定された質量とプレート３７の質量との差分から試料５の質量を算出することができる。 Each air cylinder 36 includes a piston rod 36A that reciprocates in the vertical direction. The plate 37 is mounted (or fixed) on the tips of the plurality of piston rods 36A. The plurality of air cylinders 36 repeatedly move up and down in synchronization with the plurality of piston rods 36A, so that the plate 37 repeatedly moves up and down between the positions of the electronic balances 11 and 14 on the measuring pan 21 and the positions away from each other. The sample 5 is placed on the measuring plate 21 via the plate 37, and the electronic balances 11 and 14 measure the mass of the sample 5 and the plate 37. The mass of the plate 37 is stored in advance in the storage unit 41 of the calculation device 13, and the calculation device 13 can calculate the mass of the sample 5 from the difference between the measured mass and the mass of the plate 37.

なお、第１および第２実施形態（第１〜第３変形例を含む。以下同じ。）に係る含水率連続測定装置１，２では、電子天秤１１，１４の変換送信部２３が、Ａ／Ｄ変換した電流値を算出装置１３に送信していたが、本発明はこれに限定されない。例えば、電子天秤１１，１４の変換送信部２３は、Ａ／Ｄ変換する前の電流値（アナログ電気信号）を算出装置１３に送信し、算出装置１３が受信した電流値をデジタル電気信号に変換してもよい。 In the water content continuous measuring devices 1 and 2 according to the first and second embodiments (including the first to third modifications; the same applies hereinafter), the conversion transmission unit 23 of the electronic balances 11 and 14 is A / The D-converted current value was transmitted to the calculation device 13, but the present invention is not limited to this. For example, the conversion transmission unit 23 of the electronic balances 11 and 14 transmits the current value (analog electric signal) before A / D conversion to the calculation device 13, and converts the current value received by the calculation device 13 into a digital electric signal. You may.

また、第１および第２実施形態に係る含水率連続測定装置１，２では、電子天秤１１，１４が、測定原理として電磁力平衡式を採用していたが、これに限らず、ロードセル式または音叉式等の測定原理が採用されてもよい。また、質量測定器としては、電子天秤１１，１４に限らず、測定した質量を電気信号として出力可能な秤であればよい。 Further, in the water content continuous measuring devices 1 and 2 according to the first and second embodiments, the electronic balances 11 and 14 have adopted the electromagnetic force equilibrium type as the measurement principle, but the present invention is not limited to the load cell type or the load cell type. A measurement principle such as a tuning fork type may be adopted. Further, the mass measuring device is not limited to the electronic balances 11 and 14, and any scale that can output the measured mass as an electric signal may be used.

また、第１および第２実施形態に係る含水率連続測定装置１，２では、電子天秤１１，１４と算出装置１３とが別個独立の装置であったが、これに限らず、例えば、電子天秤１１，１４が算出装置１３の機能を備えていてもよい。つまり、算出装置１３が電子天秤１１，１４と一体となっていてもよい。 Further, in the water content continuous measuring devices 1 and 2 according to the first and second embodiments, the electronic balances 11 and 14 and the calculation device 13 are separate and independent devices, but the present invention is not limited to this, and for example, the electronic balances are used. 11 and 14 may have the function of the calculation device 13. That is, the calculation device 13 may be integrated with the electronic balances 11 and 14.

また、第１および第２実施形態に係る含水率連続測定装置１，２では、離接装置１２，１５，１６が試料５を昇降させていたが、本発明はこれに限定されない。離接装置は、計量皿２１に試料５を載せたり、計量皿２１から試料５を離したりできればよいのであって、試料５を把持して横方向（水平方向）に移動させる構造（ロボットアーム等）であってもよい（図示せず）。 Further, in the water content continuous measuring devices 1 and 2 according to the first and second embodiments, the detaching devices 12, 15 and 16 raise and lower the sample 5, but the present invention is not limited thereto. The detaching device only needs to be able to place the sample 5 on the measuring plate 21 and separate the sample 5 from the measuring plate 21, and has a structure (robot arm or the like) for grasping the sample 5 and moving it in the lateral direction (horizontal direction). ) (Not shown).

また、第１および第２実施形態に係る含水率連続測定装置１，２では、算出装置１３がＰＣで構成されていたが、本発明はこれに限定されない。例えば、算出装置１３は、ＰＣに限らず、専用のデータロガーであってもよい。また、電子天秤１１，１４は、算出装置１３のインターフェース４２に直結されていたが、これに限らず、データロガーを挟んで接続されてもよい。 Further, in the water content continuous measuring devices 1 and 2 according to the first and second embodiments, the calculating device 13 is composed of a PC, but the present invention is not limited thereto. For example, the calculation device 13 is not limited to the PC, but may be a dedicated data logger. Further, the electronic balances 11 and 14 are directly connected to the interface 42 of the calculation device 13, but the present invention is not limited to this, and the electronic balances 11 and 14 may be connected with a data logger interposed therebetween.

また、第１および第２実施形態に係る含水率連続測定方法は、報知工程Ｓ３を有していたが、報知工程Ｓ３は不要であれば省略することもできる。 Further, the water content continuous measurement method according to the first and second embodiments has the notification step S3, but the notification step S3 can be omitted if unnecessary.

また、第１および第２実施形態に係る含水率連続測定装置１，２では、風防容器１０が略直方体状に形成されていたが、風防容器１０の形状や大きさは、試料５や電子天秤１１，１４の大きさ等に応じて適宜変更してもよい。また、上記した風防容器１０の底面は開放されていたが、これに限らず、風防容器１０の底面は閉塞されていてもよい（図示せず）。この場合、電子天秤１１，１４は風防容器１０の底面上に配置される。さらに、風防容器１０に開口した開口部１０Ａの形成位置や大きさも、電子天秤１１，１４の操作性等を考慮して適宜変更してもよい。また、風防容器１０に開口部１０Ａを開閉するための扉を取り付けてもよい（図示せず）。 Further, in the water content continuous measuring devices 1 and 2 according to the first and second embodiments, the windshield container 10 is formed in a substantially rectangular parallelepiped shape, but the shape and size of the windshield container 10 are the sample 5 and the electronic balance. It may be changed as appropriate according to the sizes of 11 and 14. Further, the bottom surface of the windshield container 10 described above is open, but the present invention is not limited to this, and the bottom surface of the windshield container 10 may be closed (not shown). In this case, the electronic balances 11 and 14 are arranged on the bottom surface of the windshield container 10. Further, the formation position and size of the opening 10A opened in the windshield container 10 may be appropriately changed in consideration of the operability of the electronic balances 11 and 14. Further, a door for opening and closing the opening 10A may be attached to the windshield container 10 (not shown).

また、第１および第２実施形態に係る含水率連続測定装置１，２では、電子天秤１１，１４が風防容器１０に内包されていたが、本発明はこれに限定されない。例えば、風防容器が、電子天秤１１，１４に装着されてもよいし、電子天秤１１，１４と一体に形成されてもよい（いずれも図示せず）。また、電子天秤１１，１４による質量の計測結果に風の悪影響が無いのであれば、風防容器１０は省略することもできる。 Further, in the water content continuous measuring devices 1 and 2 according to the first and second embodiments, the electronic balances 11 and 14 are included in the windshield container 10, but the present invention is not limited thereto. For example, the windshield container may be mounted on the electronic balances 11 and 14 or may be integrally formed with the electronic balances 11 and 14 (neither is shown). Further, if there is no adverse effect of wind on the mass measurement results by the electronic balances 11 and 14, the windshield container 10 can be omitted.

また、第１および第２実施形態に係る含水率連続測定装置１，２で使用する試料５は、略角筒状に形成されていたが、これに限らず、試料５は、略Ｕ字状や略Ｌ字状に形成されてもよい。また、板状の試料５をスタンドに立てた状態で計量皿２１に載せてもよい。また、試料５は、ボールシートで構成されていたが、これに限らず、板紙（厚紙）等であってもよい。すなわち、試料５は、含水率を把握・管理したい紙製品に合わせて選択すればよい。また、試料５は、含水率を把握・管理したい紙製品と同一材料を用いることが好ましいが、完全に同一材料であることを要求するものではなく、同様の吸湿特性を有するものであればよい。 Further, the sample 5 used in the water content continuous measuring devices 1 and 2 according to the first and second embodiments is formed in a substantially square cylinder shape, but the sample 5 is not limited to this and is substantially U-shaped. Or may be formed in a substantially L shape. Further, the plate-shaped sample 5 may be placed on the measuring plate 21 in a state of standing on a stand. Further, although the sample 5 is composed of a ball sheet, the sample 5 is not limited to this, and may be a paperboard (thick paper) or the like. That is, the sample 5 may be selected according to the paper product for which the water content is to be grasped and managed. Further, it is preferable to use the same material as the paper product whose water content is to be grasped and controlled for the sample 5, but it is not required that the sample 5 is completely the same material, and any material having the same hygroscopic characteristics may be used. ..

なお、上記実施形態の説明は、本発明に係る含水率連続測定方法および含水率連続測定装置における一態様を示すものであって、本発明の技術範囲は、上記実施形態に限定されるものではない。 The description of the above embodiment shows one aspect of the water content continuous measurement method and the water content continuous measurement device according to the present invention, and the technical scope of the present invention is not limited to the above embodiment. No.

１，２ 含水率連続測定装置
５ 試料
１０ 風防容器
１１，１４ 電子天秤（質量測定器）
１２，１５，１６ 離接装置
１３ 算出装置
２１ 計量皿（計量位置）
２４ 補正部
３０ 駆動部
３１ クランク板
３２ 細紐（連結部材）
３５ 連結部材
４０ 演算処理部（報知部）
４１ 記憶部（報知部）
Ｓ１ 質量連続測定工程
Ｓ２，Ｓ２´ 含水率連続算出工程
Ｓ３ 報知工程
Ｓ４ 補正工程 1,2 Moisture content continuous measuring device 5 Sample 10 Windshield container 11,14 Electronic balance (mass measuring instrument)
12, 15, 16 Separation device 13 Calculation device 21 Weighing pan (weighing position)
24 Compensation unit 30 Drive unit 31 Crank plate 32 Fine string (connecting member)
35 Connecting member 40 Calculation processing unit (notification unit)
41 Storage unit (notification unit)
S1 Mass continuous measurement process S2, S2'Water content continuous calculation process S3 Notification process S4 Correction process

Claims (9)

紙製の試料（５）の含水率を連続して測定する含水率連続測定方法であって、
質量測定器（１１）の計量位置（２１）に対する前記試料の配置と、前記計量位置からの前記試料の離間と、を繰り返す質量連続測定工程（Ｓ１）と、
前記質量連続測定工程の所定周期毎に、前記質量測定器が測定した質量の最大値と最小値との差分から前記試料の含水質量を算出し、前記含水質量と前記試料の既知数である絶乾質量との差分に基づいて前記試料の含水率を算出する含水率連続算出工程（Ｓ２）と、を備えていることを特徴とする含水率連続測定方法。 It is a water content continuous measurement method for continuously measuring the water content of a paper sample (5).
A continuous mass measurement step (S1) in which the placement of the sample with respect to the weighing position (21) of the mass measuring device (11) and the separation of the sample from the measuring position are repeated.
The water-containing mass of the sample is calculated from the difference between the maximum value and the minimum value of the mass measured by the mass measuring device at each predetermined cycle of the mass continuous measurement step, and the water-containing mass and the known number of the sample are extinct. A method for continuously measuring a water content, which comprises a water content continuous calculation step (S2) for calculating the water content of the sample based on a difference from the dry mass. 紙製の試料（５）の含水率を連続して測定する含水率連続測定方法であって、
質量測定器（１４）の計量位置（２１）に対する前記試料の配置と、前記計量位置からの前記試料の離間と、を繰り返す質量連続測定工程（Ｓ１）と、
前記質量連続測定工程の所定周期毎に、前記計量位置から前記試料を離間させた際に前記質量測定器のゼロ点補正を行う補正工程（Ｓ４）と、
前記質量連続測定工程の所定周期毎に、前記質量測定器が測定した質量の最大値を前記試料の含水質量とし、前記含水質量と前記試料の既知数である絶乾質量との差分に基づいて前記試料の含水率を算出する含水率連続算出工程（Ｓ２´）と、を備えていることを特徴とする含水率連続測定方法。 It is a water content continuous measurement method for continuously measuring the water content of a paper sample (5).
A continuous mass measurement step (S1) in which the placement of the sample with respect to the weighing position (21) of the mass measuring device (14) and the separation of the sample from the measuring position are repeated.
A correction step (S4) in which the zero point correction of the mass measuring instrument is performed when the sample is separated from the measuring position at predetermined intervals of the mass continuous measuring step.
The maximum value of the mass measured by the mass measuring instrument is defined as the water content mass of the sample at each predetermined cycle of the mass continuous measurement step, and is based on the difference between the water content mass and the absolute dry mass which is a known number of the sample. A method for continuously measuring a water content, which comprises a water content continuous calculation step (S2') for calculating the water content of the sample. 環境湿度の増加または減少に伴って前記質量連続測定工程の周期を短くすることを特徴とする請求項１または２に記載の含水率連続測定方法。 The method for continuously measuring a water content according to claim 1 or 2, wherein the cycle of the mass continuous measuring step is shortened as the environmental humidity increases or decreases. 前記含水率連続算出工程で算出された含水率が予め設定された条件を満たしたことをユーザに報知する報知工程（Ｓ３）を更に備えていることを特徴とする請求項１ないし３のいずれかに記載の含水率連続測定方法。 One of claims 1 to 3, further comprising a notification step (S3) for notifying the user that the water content calculated in the water content continuous calculation step satisfies a preset condition. The method for continuously measuring the water content according to. 紙製の試料（５）の含水率を連続して測定する含水率連続測定装置（１）であって、
計量位置（２１）に配置された物の質量を測定する質量測定器（１１）と、
前記計量位置に対する前記試料の配置と、前記計量位置からの前記試料の離間と、を繰り返し行う離接装置（１２，１５，１６）と、
前記離接装置による前記試料の配置と離間の所定周期毎に、前記質量測定器が測定した質量の最大値と最小値との差分から前記試料の含水質量を算出し、前記含水質量と前記試料の既知数である絶乾質量との差分に基づいて前記試料の含水率を算出する算出装置（１３）と、を備えていることを特徴とする含水率連続測定装置。 A water content continuous measuring device (1) that continuously measures the water content of a paper sample (5).
A mass measuring device (11) that measures the mass of an object placed at the weighing position (21), and
An attachment / detachment device (12,15,16) that repeatedly arranges the sample with respect to the weighing position and separates the sample from the weighing position.
The water-containing mass of the sample is calculated from the difference between the maximum value and the minimum value of the mass measured by the mass measuring device at each predetermined cycle of placement and separation of the sample by the contacting device, and the water-containing mass and the sample are calculated. A continuous measurement device for water content, which comprises a calculation device (13) for calculating the water content of the sample based on the difference from the absolute dry mass, which is a known number of the sample. 紙製の試料（５）の含水率を連続して測定する含水率連続測定装置（２）であって、
計量位置（２１）に配置された物の質量を測定する質量測定器（１４）と、
前記計量位置に対する前記試料の配置と、前記計量位置からの前記試料の離間と、を繰り返し行う離接装置（１２，１５，１６）と、
前記離接装置による前記試料の配置と離間の所定周期毎に、前記計量位置から前記試料を離間させた際に前記質量測定器のゼロ点補正を行う補正部（２４）と、
前記離接装置による前記試料の配置と離間の所定周期毎に、前記質量測定器が測定した質量の最大値を前記試料の含水質量とし、前記含水質量と前記試料の既知数である絶乾質量との差分に基づいて前記試料の含水率を算出する算出装置（１３）と、を備えていることを特徴とする含水率連続測定装置。 A water content continuous measuring device (2) that continuously measures the water content of a paper sample (5).
A mass measuring device (14) that measures the mass of an object placed at the weighing position (21), and
An attachment / detachment device (12,15,16) that repeatedly arranges the sample with respect to the weighing position and separates the sample from the weighing position.
A correction unit (24) that corrects the zero point of the mass measuring device when the sample is separated from the measuring position at predetermined intervals of arrangement and separation of the sample by the attachment / detachment device.
The maximum value of the mass measured by the mass measuring instrument is defined as the water content mass of the sample at each predetermined cycle of placement and separation of the sample by the detaching device, and the water content mass and the absolute dry mass which is a known number of the sample. A calculation device (13) for calculating the water content of the sample based on the difference between the two and the continuous measurement device for the water content. 前記離接装置は、環境湿度の増加または減少に伴って前記試料の配置と離間の周期を短くすることを特徴とする請求項５または６に記載の含水率連続測定装置。 The water content continuous measuring device according to claim 5 or 6, wherein the detaching device shortens the cycle of arrangement and separation of the sample as the environmental humidity increases or decreases. 前記算出装置によって算出された含水率が予め設定された条件を満たしたことをユーザに報知する報知部（４０，４１）を更に備えていることを特徴とする請求項５ないし７のいずれかに記載の含水率連続測定装置。 The invention according to any one of claims 5 to 7, further comprising a notification unit (40, 41) for notifying the user that the water content calculated by the calculation device satisfies a preset condition. The described water content continuous measuring device. 前記試料および前記質量測定器の周囲に配置される風防容器（１０）を更に備え、
前記離接装置は、
前記風防容器の上部に設けられ、回転軸を回転させる駆動部（３０）と、
前記駆動部の前記回転軸に固定されたクランク板（３１）と、
前記クランク板の前記回転軸から径方向外側にずれた位置と前記試料との間に架設された連結部材（３２，３５）と、を含み、
前記駆動部が前記クランク板を一方向に回転させることで、前記連結部材を介して前記クランク板に繋がれた前記試料が前記計量位置に配置される状態と前記計量位置から離間する状態との間で周期的に昇降を繰り返すことを特徴とする請求項５ないし８のいずれかに記載の含水率連続測定装置。 A windshield container (10) arranged around the sample and the mass measuring instrument is further provided.
The disconnection device is
A drive unit (30) provided on the upper part of the windshield container to rotate the rotating shaft,
A crank plate (31) fixed to the rotating shaft of the driving unit, and
A connecting member (32, 35) erected between the crank plate at a position displaced radially outward from the rotation axis and the sample is included.
When the driving unit rotates the crank plate in one direction, the sample connected to the crank plate via the connecting member is placed at the measuring position and separated from the measuring position. The continuous water content measuring device according to any one of claims 5 to 8, wherein the ascending / descending device is periodically repeated between the two.
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