JPH01112120A - Level measuring method for continuous conveyer - Google Patents
Level measuring method for continuous conveyerInfo
- Publication number
- JPH01112120A JPH01112120A JP62269443A JP26944387A JPH01112120A JP H01112120 A JPH01112120 A JP H01112120A JP 62269443 A JP62269443 A JP 62269443A JP 26944387 A JP26944387 A JP 26944387A JP H01112120 A JPH01112120 A JP H01112120A
- Authority
- JP
- Japan
- Prior art keywords
- level
- level gauge
- connection part
- measurement
- level meter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 15
- 238000005259 measurement Methods 0.000 claims abstract description 20
- 238000000691 measurement method Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract description 13
- 239000010802 sludge Substances 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 abstract description 4
- 239000007787 solid Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
Description
【発明の詳細な説明】
「発明の目的」
（産業上の利用分野）
本発明は液体もしくは固体を連続移送装置により移送す
る際の、個々の移送容器のレベル測定方法に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION OBJECTS OF THE INVENTION (Industrial Field of Application) The present invention relates to a method for measuring the level of individual transfer containers when liquids or solids are transferred by a continuous transfer device.
（従来の技術）
バケットコンベヤーのように、同一形状の容器を横に連
結して、無端ベルトの如き形態で使用する液体もしくは
固体の移送装置において、各バケット毎の移送する量を
正確に知るための方法としては、静電容量式レベル計も
しくは超音波レベル計等が夫々単独で使用される連続測
定方法が一般的に採用されている。(Prior art) In a liquid or solid transfer device, such as a bucket conveyor, in which containers of the same shape are connected horizontally and used in a form such as an endless belt, to accurately know the amount to be transferred for each bucket. As a method, a continuous measurement method in which a capacitive level meter, an ultrasonic level meter, or the like is used independently is generally adopted.
（発明が解決しようとする従来技術の問題点）上記何れ
のタイプのレベル計を使用する場合でも、−船釣に連続
的に測定されるから、各容器と容器の接続部のレベルも
連続して測定されるために、測定値をプログラムで補正
するか、測定器の設置位置を液面（もしくは固形物の表
面）から離して、即ち測定面積を大きくして液面と接続
部を同時に測定し、その平均値を基準として計算する方
法（感度を鈍くする方法）等が採用されている。(Problems of the Prior Art to be Solved by the Invention) No matter which type of level meter is used, - since measurements are taken continuously during boat fishing, the level at the connection between each container is also continuous. In order to measure the surface of the liquid, either correct the measured value in the program or move the measuring device away from the liquid surface (or the surface of the solid object) to increase the measurement area and measure the liquid surface and the connection at the same time. However, a method of calculating based on the average value (a method of reducing sensitivity) is adopted.
しかし、前者のプログラムで補正する方法は複雑でコス
トが高く、後者の方法では測定精度が低くなるという問
題点がある。However, the former method of correction using a program is complicated and expensive, and the latter method has the problem of low measurement accuracy.
本発明はこのような現状に鑑み創案されたものであって
、測定装置に多くの経費をかけることなく、しかもノイ
ズの混入を排除して測定精度を向上せしめる方法を提供
することを目的とする。The present invention was devised in view of the current situation, and an object of the present invention is to provide a method for improving measurement accuracy by eliminating noise contamination without spending a lot of money on measuring equipment. .
「発明の構成」
（問題点を解決するための手段）
前述の目的を達成するために本発明者は、超音波レベル
計と静電容量式レベル計の双方を使用するレベル測定方
法にして、パケットとパケットとの接続部の有無を静電
容量式レベル計で検知し、該接続部の検知信号により超
音波レベル計によるレベル測定を中止することにより、
ノイズの混入を防止するようにしたことを特徴とする連
続移送装置におけるレベル測定方法を鞍に提案する。"Structure of the Invention" (Means for Solving Problems) In order to achieve the above-mentioned object, the present inventor developed a level measuring method using both an ultrasonic level meter and a capacitive level meter, By detecting the presence or absence of a connection between packets with a capacitive level meter, and stopping the level measurement using an ultrasonic level meter based on the detection signal of the connection,
A method for measuring level in a continuous transfer device is proposed for saddles, which is characterized by preventing noise from entering.
（作用）
本発明の特徴は、比較的安価な静電容量式レベル計によ
り、各々のパケットの内容物のレベルのバラツキに比較
して圧倒的な差を有するパケットの接続部のレベルの検
出を行い、しがちその検出信号に基づき内容物のレベル
を精密に検出する超音波レベル計のレベル測定を中止し
、連続して移送される各パケットのレベルの測定値にノ
イズの混入することをカットしたことである。(Function) The feature of the present invention is that it is possible to detect the level at the connection part of the packet, which has an overwhelming difference compared to the variation in the level of the content of each packet, using a relatively inexpensive capacitance type level meter. The ultrasonic level meter that accurately detects the level of the contents based on the detection signal that tends to be carried out is discontinued, thereby eliminating noise from being mixed into the level measurements of each successively transferred packet. That's what I did.
従って、連続して移送される原材料の移送の方向に直交
するように、静電容量式レベル計と超音波レベル計を移
送設備の上方に横に並らべて設置しておけば、超音波レ
ベル計は液面のレベル測定の誤差要因となるパケットの
接続部を測定値として取り込むことはな（なる。尚、こ
の測定されなかった期間中の値をどのようにするかは、
レベル測定値のまとめ方によるが、ａ）中断される前の
値を記録するようにする。 ｂ）中断される前の測定値
の中で一番変動の少いゾーンの平均値とする。 ｃ）測
定値のみ計算し、測定されなかった時間は計算しない１
等々、何れの方法を選択するかはパケットの形状、大き
さにより適宜法めればよい。尚、超音波レベル計はパケ
ットの接続部のレベルは測定しないことになるから、視
野を広くする必要はなく、移送装置の障害にならない程
度パケット面に近づけてセットされることが可能であり
測定精度は向上する。接続部レベルの異状値を検出して
超音波レベル計へ測定中止の信号を送る機構そのものは
、本発明の要旨ではないから、その機構、設備はどのよ
うなものを使用してもよい。Therefore, if a capacitive level meter and an ultrasonic level meter are installed horizontally above the transfer equipment so as to be orthogonal to the direction of transfer of raw materials that are continuously transferred, ultrasonic The level meter does not take in the connection part of the packet as a measurement value, which is a cause of error in liquid level measurement.
Depending on how you compile the level measurement values, a) Record the values before the interruption. b) The average value of the zone with the least fluctuation among the measured values before interruption. c) Calculate only the measured values, do not calculate the time when no measurements were taken1
Which method to select may be determined as appropriate depending on the shape and size of the packet. Furthermore, since the ultrasonic level meter does not measure the level at the connection part of the packet, it is not necessary to have a wide field of view, and it can be set as close to the packet surface as possible without interfering with the transfer device. Accuracy improves. The mechanism itself for detecting an abnormal value at the connection level and sending a signal to stop measurement to the ultrasonic level meter is not the gist of the present invention, so any mechanism or equipment may be used.
（実施例）
第１図は本発明方法を実施するためのレベル計の設置位
置を示す平面図であって、多数のパケット１に脱水対象
の汚泥２を充たして矢印の方向へ移送する際、該移送装
置の上方にこの移送方向と直角に交わる線上に、超音波
レベル計４と静電容量式レベル計５を連続して並らべて
設置した。第２図は第１図におけるＡ−Ａ断面図を示す
もので、金属板３および支持部材６で形成されるパケッ
トの接続部が静電容量式レベル計５の真下を通過する際
は汚泥２の表面より著しく高いので簡単にその位置を検
出し、同時に信号を超音波レベル計４に送り、液面のレ
ベル測定を中止し、該接合部の通過を待って再びレベル
検出を行うよう自動制御するシステムを採用した。(Example) FIG. 1 is a plan view showing the installation position of a level meter for carrying out the method of the present invention, and when a large number of packets 1 are filled with sludge 2 to be dehydrated and transferred in the direction of the arrow, Above the transfer device, an ultrasonic level meter 4 and a capacitance type level meter 5 were installed in series on a line intersecting the transfer direction at right angles. FIG. 2 shows a cross-sectional view taken along the line A-A in FIG. Since it is significantly higher than the surface of the liquid, its position can be easily detected, and at the same time a signal is sent to the ultrasonic level meter 4 to automatically control the liquid level to stop measuring the liquid level and wait for the liquid to pass through the joint before detecting the level again. A system was adopted to do so.
次に本発明方法の実施例を記載する。Next, examples of the method of the present invention will be described.
１パケツトの容量（２０Ａ）の連続的移送装置（１時間
当りの平均移送量５” ／Ｈ）に静電容量式レベル計並
びに超音波レベル計をパケットコンベヤの上方位置に移
送方向に直交して並らべて設置して汚泥を連続して５ト
ン／時移送した。この時の超音波レベル計の測定精度は
１パケット当り±３％以内の高精度であった。しかしこ
れと比較して行なった従来の静電容量式レベル計を併用
しないで、超音波レベル計のみを液面から離して設けた
場合のレベルの測定精度は１パケット当り±１５％の精
度しか得られなかった。A continuous transfer device with a capacity of 1 packet (20A) (average transfer rate per hour of 5"/H) is equipped with a capacitive level meter and an ultrasonic level meter at a position above the packet conveyor perpendicular to the transfer direction. They were installed side by side and sludge was transferred continuously at 5 tons/hour.The measurement accuracy of the ultrasonic level meter at this time was within ±3% per packet.However, compared to this When only the ultrasonic level meter was installed at a distance from the liquid surface without using a conventional capacitive level meter, the level measurement accuracy was only ±15% per packet.
尚、この実施例においては測定されなかった時間はカッ
トして計算した。In addition, in this example, the time that was not measured was cut and calculated.
「発明の効果」
以上詳細に説明したように、本発明方法により連続して
移送する液体もしくは固体の各バケツ１−毎のレベル測
定を行うときには、従来方法による場合のように、連続
的にレベルを測定してあとでプログラムで補正するとい
う複雑さもなく、又、測定視野を拡げることによる測定
精度の低下もなくなり、従来より高い精度で移送量を測
定することが可能となった。設備的には、従来の超音波
レベル計に新らたに静電容量式レベル計を付加したに止
まり、大きな経済的負担とはならない。"Effects of the Invention" As explained in detail above, when the method of the present invention measures the level of each bucket of liquid or solid that is continuously transferred, There is no need for the complexity of measuring and correcting it later using a program, and there is no reduction in measurement accuracy due to expanding the measurement field of view, making it possible to measure the transfer amount with higher accuracy than before. In terms of equipment, it is just a new capacitive level meter added to the conventional ultrasonic level meter, so it does not pose a large economic burden.
第１図は本発明を実施するためのレベル計の設置位置を
示す平面図、第２図は第１図におけるＡ−Ａ断面図を示
すものである。
１：パケット、 ２：汚泥FIG. 1 is a plan view showing the installation position of a level meter for carrying out the present invention, and FIG. 2 is a sectional view taken along line A-A in FIG. 1: Packet, 2: Sludge
Claims (1)
レベル測定方法にして、バケットとバケットとの接続部
の有無を静電容量式レベル計で検知し、該接続部の検知
信号により超音波レベル計によるレベル測定を中止する
ことによりノイズの混入を防止するようにしたことを特
徴とする連続移送装置におけるレベル測定方法。The level measurement method uses both an ultrasonic level meter and a capacitance type level meter. 1. A level measuring method in a continuous transfer device, characterized in that mixing of noise is prevented by stopping level measurement using a sonic level meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62269443A JPH01112120A (en) | 1987-10-27 | 1987-10-27 | Level measuring method for continuous conveyer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62269443A JPH01112120A (en) | 1987-10-27 | 1987-10-27 | Level measuring method for continuous conveyer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01112120A true JPH01112120A (en) | 1989-04-28 |
| JPH0523694B2 JPH0523694B2 (en) | 1993-04-05 |
Family
ID=17472506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62269443A Granted JPH01112120A (en) | 1987-10-27 | 1987-10-27 | Level measuring method for continuous conveyer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01112120A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10361640B4 (en) * | 2003-01-16 | 2013-02-07 | Binder & Co Ag | Measuring device for scoop wheels |
| WO2023021699A1 (en) * | 2021-08-20 | 2023-02-23 | Dmg森精機株式会社 | Coolant treatment device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0320168D0 (en) * | 2003-08-28 | 2003-10-01 | Univ Manchester | A sensing device |
-
1987
- 1987-10-27 JP JP62269443A patent/JPH01112120A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10361640B4 (en) * | 2003-01-16 | 2013-02-07 | Binder & Co Ag | Measuring device for scoop wheels |
| WO2023021699A1 (en) * | 2021-08-20 | 2023-02-23 | Dmg森精機株式会社 | Coolant treatment device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0523694B2 (en) | 1993-04-05 |
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