JPH03255937A - Method and device for measuring sticking amount of rust preventive oil - Google Patents
Method and device for measuring sticking amount of rust preventive oilInfo
- Publication number
- JPH03255937A JPH03255937A JP2053803A JP5380390A JPH03255937A JP H03255937 A JPH03255937 A JP H03255937A JP 2053803 A JP2053803 A JP 2053803A JP 5380390 A JP5380390 A JP 5380390A JP H03255937 A JPH03255937 A JP H03255937A
- Authority
- JP
- Japan
- Prior art keywords
- amount
- wavelength
- rust preventive
- preventive oil
- steel plate
- 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
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 230000003449 preventive effect Effects 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 32
- 239000010959 steel Substances 0.000 claims abstract description 32
- 238000005259 measurement Methods 0.000 claims abstract description 30
- 238000010521 absorption reaction Methods 0.000 claims description 12
- 238000005260 corrosion Methods 0.000 claims 1
- 238000004458 analytical method Methods 0.000 abstract description 3
- 239000011248 coating agent Substances 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 abstract description 3
- 238000004611 spectroscopical analysis Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 45
- 238000010586 diagram Methods 0.000 description 9
- 238000004566 IR spectroscopy Methods 0.000 description 6
- 238000011088 calibration curve Methods 0.000 description 4
- 238000004381 surface treatment Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000691 measurement method Methods 0.000 description 3
- 230000001678 irradiating effect Effects 0.000 description 2
- 230000031700 light absorption Effects 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 238000002835 absorbance Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000012886 linear function Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
Landscapes
- Length Measuring Devices By Optical Means (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野コ
本発明は、鋼板に塗布した防錆油の付着量を赤外分光法
によりオンラインで測定する方法及び装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method and apparatus for online measuring the amount of rust preventive oil applied to a steel plate by infrared spectroscopy.
［従来の技術］
防錆油は鋼板の発錆防止のため精整工程において塗布さ
れるが、過不足なく塗布するよう厳格な付着量の管理が
必要である。付着量不足は当然に発錆の原因となり、多
すぎても需要家側の防錆油洗浄等作業性の悪化、コイル
の汚れ等をまねき、トラブル発生の原因となるからであ
る。[Prior Art] Rust preventive oil is applied during the finishing process to prevent rust from forming on steel plates, but it is necessary to strictly control the amount of oil applied so that it is applied in just the right amount. Insufficient amount of adhesion naturally causes rust, and too much adhesion will cause troubles such as deterioration of workability such as rust preventive oil cleaning on the customer side and staining of the coil.
従来、防錆油付着量の管理はオンラインの鋼板よりサン
プルを取り出し、オフラインにおいて重量法または赤外
分光法により分析・測定していた。Conventionally, the amount of rust preventive oil deposited has been controlled by taking samples from steel plates online and analyzing and measuring them offline using gravimetric methods or infrared spectroscopy.
［発明が解決しようとする課題］
しかし、このようなオフライン分析による測定方法では
、多くの時間、手数がかかるため頻繁に行うことができ
ず、また測定結果をリアルタイムにフィードバックする
ことができないため、防錆油付着量の管理を厳格に行う
ことができなかった。[Problem to be solved by the invention] However, such a measurement method using offline analysis requires a lot of time and effort, so it cannot be performed frequently, and measurement results cannot be fed back in real time. It was not possible to strictly control the amount of rust preventive oil deposited.
本発明は、従来オフライン分析に用いられていた赤外分
光法をオンラインでの測定用に改良することにより、厳
格な防錆油付着量の管理ができるようにした防錆油の付
着量測定方法及び装置を提供することを目的とする。The present invention is a method for measuring the amount of rust-preventive oil deposited that enables strict control of the amount of rust-preventive oil deposited by improving infrared spectroscopy, which was conventionally used for offline analysis, for online measurement. and equipment.
［課題を解決するための手段］
上記の目的を達成するために、本発明に係る防錆油の付
着量測定方法は、防錆油を塗布した鋼板に対し、回転す
るフィルタを通して選択的に選ばれた１つの吸収波長と
２つの参照波長の赤外光を順次照射し、上記３つの波長
の反射光量を演算することにより鋼板に塗布した防錆油
の付着量を測定することとしたものである。この場合に
おいて、測定精度のある程度の低下が許容されるなら参
照波長を１つとすることもできる。[Means for Solving the Problems] In order to achieve the above object, the method for measuring the amount of rust preventive oil deposited according to the present invention is to selectively apply rust preventive oil to a steel plate by passing it through a rotating filter. The amount of rust preventive oil applied to the steel plate was measured by sequentially irradiating infrared light with one absorption wavelength and two reference wavelengths, and calculating the amount of reflected light at the three wavelengths. be. In this case, if a certain degree of decrease in measurement accuracy is acceptable, one reference wavelength may be used.
また、本測定方法を実施するための測定装置は、防錆油
が赤外光を吸収する波長帯に合わせた測定波長フィルタ
及びその吸収波長帯の近傍の波長帯に合わせた少なくと
も１つの参照波長フィルタを備えた回転するフィルタホ
イールと、該フィルタホイールを介して上記防錆油を塗
布した鋼板に照射された各波長の反射光の光量を検出す
る光量検出器を備えた測定ヘッドと；
該測定ヘッドを鋼板の板幅方向に移動させる移動装置と
；
上記光量検出器により検出された各波長の反射光量から
上記防錆油の付着量を演算しその出力を表示する制御装
置と；
を備えたものである。In addition, the measuring device for carrying out this measurement method includes a measurement wavelength filter that is matched to a wavelength band in which the rust preventive oil absorbs infrared light, and at least one reference wavelength filter that is matched to a wavelength band near the absorption wavelength band. a rotating filter wheel provided with a filter; and a measurement head equipped with a light amount detector that detects the amount of reflected light of each wavelength irradiated onto the steel plate coated with the anti-rust oil through the filter wheel; A moving device that moves the head in the width direction of the steel plate; A control device that calculates the amount of the rust preventive oil adhered from the amount of reflected light of each wavelength detected by the light amount detector and displays the output; It is something.
［作 用コ
一般に防錆油はその成分の多くが鉱物油であり、ＣＨ基
が重合した分子構造となっている。しかもＣＨ基は１．
７ｐｍ、２．３ｐｍ、３．４ｐｍ付近に赤外光の吸収波
長帯をもち、この順に吸収度が高くなる性質を有する。[Function] In general, most of the components of rust preventive oils are mineral oils, and have a molecular structure in which CH groups are polymerized. Moreover, the CH group is 1.
It has infrared absorption wavelength bands around 7 pm, 2.3 pm, and 3.4 pm, and has the property that the absorbance increases in this order.
いま、防錆油の赤外光吸収波長をλ とし、ｂｓ
その赤外光の入射光量を１ 、油膜厚ｔを透過した後の
反射光量を■、とすると、次式が成立する。Now, if the infrared absorption wavelength of the anticorrosion oil is λ, bs is the amount of incident infrared light, and 1 is the amount of reflected light after passing through the oil film thickness t, then the following equation holds true.
１ ＝Ｉ ｅｘｐ（−ｋｔ） −
■ｔ 。1 =Iexp(-kt)-
■t.
但し、ｋ：定数
この対数をとると
１０ｇ （Ｉ ／１１）−ｋｔ ・・・■とな
って入射光量１ と反射光量１１の光量比の対数が油膜
厚ｔに比例する。However, k: constant. Taking the logarithm of this gives 10g (I/11)-kt...■, and the logarithm of the ratio of the amount of incident light 1 to the amount of reflected light 11 is proportional to the oil film thickness t.
しかし、オンラインでは入射光量を測定できないので、
入射光量Ｉ の代りに２つの参照波長（比較波長ともい
う）λ 、λ の反射光量ｒｅｆ’ｌ ｒｅｆ
２
Ｉｒｅｆｌ” ｖｅｒ２を用いる。However, since it is not possible to measure the amount of incident light online,
Instead of the incident light amount I, two reference wavelengths (also referred to as comparison wavelengths) λ and the reflected light amount of λ ref'l ref
2 Irefl” ver.2 is used.
参照波長λ 、λ は第１図に示すように吸ｒｅｆ
’ｌ ｒｅｆ’２
収波長λ の両側の近くに選定する。The reference wavelengths λ and λ are absorption ref as shown in Figure 1.
'l ref'2 is selected near both sides of the collection wavelength λ.
ｂｓ
参照波長を２波とすることで測定対象基材の下地表面あ
らさ状態の影響等を低減でき測定精度が向上する。bs By using two reference wavelengths, the influence of the underlying surface roughness of the base material to be measured can be reduced, and measurement accuracy can be improved.
この３波長方式により、油膜厚ｔは次式のようにあられ
すことができる。Using this three-wavelength method, the oil film thickness t can be calculated as shown in the following equation.
但し、λ −３，３〜３．５μｍ ｂｓ λ −３，０〜３．２μｍ ｅｆｌ λ −ｗ ３．６〜３．８μｍ ｅｆ２ の範囲に設定している。However, λ -3,3~3.5μm bs λ -3.0～3.2μm efl λ -w 3.6~3.8μm ef2 The range is set to .
本発明は、このような３波長方式の赤外分光法をオンラ
インにおける鋼板の防錆油付着量の計測に適用したもの
であり、１つの吸収波長と２つの参照波長の赤外光を防
錆油を塗布した鋼板に次々に照射し、その反射光量を検
出し、それを上記■式に従って演算することにより、防
錆油の付着量がリアルタイムに測定でき、かつその管理
が厳格にできるのである。The present invention applies such three-wavelength infrared spectroscopy to the online measurement of the amount of rust preventive oil deposited on steel plates, and uses infrared light at one absorption wavelength and two reference wavelengths for rust prevention. By sequentially irradiating oil-coated steel plates, detecting the amount of reflected light, and calculating it according to the above formula, it is possible to measure the amount of rust preventive oil adhered in real time and to strictly control it. .
［実施例］
第２図は本発明で使用する測定装置の概略構成図であり
、第３図はその外観図である。[Example] FIG. 2 is a schematic configuration diagram of a measuring device used in the present invention, and FIG. 3 is an external view thereof.
本装置は、測定ヘッド１と、防錆油を塗布した鋼板（以
下、塗油鋼板という）１０の板幅方向に測定ヘッド１を
往復移動させるように支持した移動装置２と、測定ヘッ
ド１に接続された制御装置３により大略構成されている
。This device includes a measuring head 1, a moving device 2 that supports the measuring head 1 in a reciprocating manner in the width direction of a steel plate 10 coated with anti-rust oil (hereinafter referred to as an oil-coated steel plate), and It is roughly composed of a connected control device 3.
測定ヘッド１は、光源（例えばハロゲン球）１１、フィ
ルタホイール１２．フィルタホイール１２の駆動モータ
ー３．塗油鋼板１０からの反射光の集光レンズ１４１反
射光量の検出器（例えばフォトダイオード）１５．及び
ゲイン調整部１６から構成されており、フィルタホイー
ル１２には防錆油の赤外光吸収帯（３，４μｍ）に合わ
せた測定波長フィルタＳ、Ｓ２と、その吸収波長の両側
付近の波長帯（３，２μｍ、３．６μｍ）にそれぞれ合
わせた参照波長フィルタＲ、Ｒの合２
計４枚のフィルタが同一円周上に等間隔に配置されてい
る。測定波長フィルタの通過帯域を適確に吸収帯に一致
させ、参照波長フィルタを可能な限り吸収帯近傍にとる
ことが、測定感度の向上と、表面粗度・角度・距離等の
変化に対する精度維持のために重要になるが、このため
融電体干渉フィルタを選択使用している。なお、この部
分はショートパスフィルタとロングパスフィルタの重ね
合せでも実現できる。インフラレッド製本機では、ロン
グパスフィルタ（Ｌ Ｐ Ｆ）とショートパスフィルタ
（Ｓ Ｐ Ｆ）を重ね合せて使用している。このような
フィルタホイール１２をモータ１３により１５００ ｒ
ｐｍ位の回転数で高速回転させるようにしている。なお
、測定ヘッド１は正反射光が集光レンズ１４の中心に入
るように水平に対し所定の角度θで傾斜させである。ま
た、測定ヘッド１と塗油鋼板１０間の距離ｐは一定に保
っている。The measurement head 1 includes a light source (for example, a halogen bulb) 11, a filter wheel 12. Drive motor for filter wheel 12 3. Condenser lens 141 for the reflected light from the oiled steel plate 10 Detector for the amount of reflected light (for example, a photodiode) 15. and a gain adjustment section 16, and the filter wheel 12 includes measurement wavelength filters S and S2 matched to the infrared light absorption band (3, 4 μm) of the rust preventive oil, and wavelength bands near both sides of the absorption wavelength. (3, 2 μm, 3.6 μm), a total of 2 reference wavelength filters R and R, a total of 4 filters, are arranged at equal intervals on the same circumference. Accurately aligning the passband of the measurement wavelength filter with the absorption band and placing the reference wavelength filter as close to the absorption band as possible improves measurement sensitivity and maintains accuracy against changes in surface roughness, angle, distance, etc. This is important for this reason, and for this reason, a fusion body interference filter is selectively used. Note that this part can also be realized by superimposing a short pass filter and a long pass filter. The Infrared bookbinding machine uses a long pass filter (L PF) and a short pass filter (S PF) superimposed on each other. Such a filter wheel 12 is heated at 1500 r by a motor 13.
It is designed to rotate at a high speed of approximately pm. Note that the measurement head 1 is inclined at a predetermined angle θ with respect to the horizontal so that the specularly reflected light enters the center of the condenser lens 14. Further, the distance p between the measuring head 1 and the oil-applied steel plate 10 is kept constant.
移動装置２は、測定ヘッド１を支持した本体２１が塗油
鋼板１０の上方板幅方向に架設したガイドレール２２に
沿って往復移動するように構成されている。また、図示
は省略するが、同様の移動装置を塗油鋼板１０の下側に
も設けて表裏両面の測定を可能にしてもよいし、測定ヘ
ッド１を高さ調整機構及び角度調整機構を介して移動装
置２に取り付けてもよい。The moving device 2 is configured such that a main body 21 supporting the measuring head 1 reciprocates along a guide rail 22 installed above the oil-coated steel plate 10 in the plate width direction. Although not shown, a similar moving device may also be provided under the oiled steel plate 10 to enable measurement of both the front and back surfaces, or the measuring head 1 may be moved through the height adjustment mechanism and angle adjustment mechanism. It may also be attached to the moving device 2.
制御装置３は、主として付着量演算部３１．補正部３２
．出力調整部３３．及び表示部３４から構成されている
。The control device 3 mainly includes an adhesion amount calculating section 31. Correction section 32
．． Output adjustment section 33. and a display section 34.
上記の構成において、光源１１より赤外光４を通板中の
塗油鋼板１０の表面に照射する。それとともに、測定ヘ
ッド１内のフィルタホイール１２を回転させ、測定ヘッ
ド１を板幅方向に移動させる。In the above configuration, the light source 11 irradiates infrared light 4 onto the surface of the oiled steel sheet 10 being passed through. At the same time, the filter wheel 12 in the measurement head 1 is rotated to move the measurement head 1 in the width direction of the plate.
赤外光４を回転中のフィルタホイール１２の各フィルタ
Ｓ 、Ｒ、Ｓ 、Ｒ２をこの順に次々１２
に透過させることにより、測定波長フィルタｓ１゜Ｓ２
はその防錆油の赤外光吸収波長帯をもつ１つの赤外光の
みを、また参照波長フィルタＲ１゜Ｒ２はその吸収波長
帯の両側付近に波長帯をもつ２つの赤外光のみを選択的
に選んで塗油鋼板１゜に次々に照射することになる。そ
して各波長の反射光５は集光レンズ１４により光量検出
器１５に集光され光量検出器１５で反射光量が検出され
る。By passing the infrared light 4 through each of the filters S, R, S, and R2 of the rotating filter wheel 12 in this order, the measurement wavelength filters S1 and S2 are
selects only one infrared light having the infrared light absorption wavelength band of the rust preventive oil, and the reference wavelength filter R1゜R2 selects only two infrared lights having wavelength bands on both sides of the absorption wavelength band. The method is to irradiate 1° of the oiled steel plate one after another, selectively. The reflected light 5 of each wavelength is focused by a condenser lens 14 onto a light amount detector 15, and the amount of reflected light is detected by the light amount detector 15.
この検出された各反射光量のゲインをゲイン調整部１６
で調整したのち、制御装置３の付着量演算部３１に送り
、ここで上記■式の左辺にｌｏｇアンプゲインとしてα
を乗じた
の計算を行い、付着量Ｘを算出する。The gain adjustment unit 16 adjusts the gain of each detected amount of reflected light.
After adjustment, it is sent to the adhesion amount calculating section 31 of the control device 3, where α is added as the log amplifier gain to the left side of the above equation (■).
The adhesion amount X is calculated by multiplying by .
求められた付着量Ｘは、鋼板の下地処理、油種、測定距
離・角度等の違いにより補正する必要があるので、補正
部３２で付着量Ｘを検量線に基づき補正する。検量線Ｙ
は付着量Ｘの一次関数であられされる。すなわち、
Ｙ−ａ（Ｘ−ｂ） ・・・■但し
、ａニスパン調整のための定数
ｂ：ゼロ調整のための定数
■式により補正された出力電圧Ｖは出力調整部３３で調
整されたのち、表示部３４にディジタル表示される。そ
の表示は出力電圧Ｖ、１平方平方メートルウのグラム数
（ｇ／ｒｒｉ”） 、 ｌｏｇ値等の１または２以上の
組合わせである。出力調整部３３は■式中のａ、ｂの値
が固定された定数である場合に、さらに鋼板の下地処理
のパラメータに基づきゲインを調整可能としたものであ
る。The determined adhesion amount X needs to be corrected based on differences in the surface treatment of the steel plate, oil type, measurement distance/angle, etc., so the correction section 32 corrects the adhesion amount X based on the calibration curve. Calibration curve Y
is expressed as a linear function of the adhesion amount X. That is, Y-a (X-b) ...■ However, a constant for the span adjustment b: a constant for zero adjustment ■ The output voltage V corrected by the formula is adjusted by the output adjustment section 33 and then , are digitally displayed on the display section 34. The display is a combination of one or more of the output voltage V, the number of grams per square meter (g/rri"), log value, etc. The output adjustment section 33 In the case of a fixed constant, the gain can be further adjusted based on the parameters of the surface treatment of the steel plate.
以上のようにして、塗油鋼板１０の全面について防錆油
の付着量を連続的、あるいはスポット的に測定できるか
ら、オンライン上の鋼板油膜厚さ、板幅方向の油膜分布
等を正確かつリアルタイムに把握でき、付着量の管理を
厳格に行うことができる。また、測定結果はラインの防
錆油塗布装置（図示せず）にフィードバックされ塗布量
の制御が可能になる。As described above, since the amount of rust preventive oil deposited on the entire surface of the oil-coated steel sheet 10 can be measured continuously or spot-wise, the online steel sheet oil film thickness, oil film distribution in the sheet width direction, etc. can be measured accurately and in real time. The amount of adhesion can be strictly controlled. In addition, the measurement results are fed back to the antirust oil coating device (not shown) on the line, making it possible to control the coating amount.
なお、第４図は仕上コードの相違による塗油量（付着量
）と出力電圧の関係を示した検量線図であり、油種は共
通の出光製ダフニーオイルコートＳＫを使用した。この
図から、鋼板の下地処理によって影響を受けることがわ
かる。In addition, FIG. 4 is a calibration curve diagram showing the relationship between the amount of oil applied (adhered amount) and the output voltage depending on the difference in finish code, and the same oil type, Daphne Oil Coat SK manufactured by Idemitsu, was used. This figure shows that it is affected by the surface treatment of the steel plate.
また、第５図は仕上コードを共通にし油種を変えた場合
の検量線図であり、油種の違いはほとんど影響がない。Moreover, FIG. 5 is a calibration curve diagram when the finish code is the same and the oil type is changed, and the difference in oil type has almost no effect.
第６図はサンプル板と測定ヘッド間の距離の影響を調べ
た線図であり、上記距離Ｉ （第３図参照）は９５１１
を中心に変化させ、照射角度θ−１４″に固定した場合
の塗油量の誤差（％）であられしである。この図から、
測定距離の偏差により測定精度の影響度を知ることがで
き、距離ｆｌ−９５ｗ＋ｓの場合は±５紬の範囲が適当
である。Figure 6 is a diagram examining the influence of the distance between the sample plate and the measuring head, and the distance I (see Figure 3) is 9511.
The error (%) in the amount of oil applied when the irradiation angle is fixed at θ-14'' is shown from this figure.
The degree of influence on the measurement accuracy can be determined by the deviation of the measurement distance, and in the case of the distance fl-95w+s, a range of ±5 Tsumugi is appropriate.
最後に、第７図はサンプル板と測定ヘッド間の傾きの影
響を調べた線図であり、上記傾きθ−１４°を中心に変
化させ、上記距離Ｎ−９５ｍｍに固定した場合の塗油量
の誤差（％）であられしである。この図から、赤外光の
照射角度の偏差により測定精度の影響度を知ることがで
き、θ−１４″±４″の範囲が適当である。Finally, Figure 7 is a diagram examining the influence of the tilt between the sample plate and the measuring head, showing the amount of oil applied when the tilt is varied around θ-14° and the distance is fixed at N-95 mm. The error (%) is a pity. From this figure, it is possible to know the degree of influence on measurement accuracy by the deviation of the irradiation angle of infrared light, and the range of θ-14''±4'' is appropriate.
［発明の効果］
以上のように本発明によれば、３波長方式の赤外分光法
をオンライン上の塗油鋼板に適用できるよう構成したの
で、その防錆油の付着量を鋼板の全面にわたり連続的、
あるいはスポット的に測定でき、高精度かつリアルタイ
ムの測定が可能となり、付着量の管理を厳格に行うこと
ができる。[Effects of the Invention] As described above, according to the present invention, the three-wavelength infrared spectroscopy is configured to be applicable to online oiled steel sheets, so the amount of rust preventive oil deposited can be controlled over the entire surface of the steel sheet. Continuous,
Alternatively, it can be measured spot-wise, making it possible to perform highly accurate and real-time measurement, and to strictly control the amount of adhesion.
第１図は３波長方式の赤外分光法の原理図、第２図は本
発明による測定方法を実施するための装置の概略構成図
、第３図は本測定装置の外観図、第４図は鋼板の下地処
理の影響をみるために塗油量と出力電圧の関係を示した
検量線図、第５図は油種の違いによる影響をみるために
塗油量と出力電圧の関係を示した検量線図、第６図は測
定距離の偏差による測定精度の誤差をあられした線図、
第７図は照射角度の偏差による測定精度の誤差をあられ
した線図である。
１・・・測定ヘッド
２・・・移動装置
３・・・制御装置
１０・・・塗油鋼板
１１・・・光源
１２・・・フィルタホイール
１３・・・駆動モータ
１４・・・集光レンズ
１５・・・光量検出器
１６・・・ゲイン調整部
２１・・・本体
２２・・・ガイ官レール
３１・・・付着量演算部
３２・・・補正部
３３・・・出力調整部
３４・・・表示部
Ｓｌ、Ｓ２・・・測定波長フィルタ
Ｒ，Ｒ２・・・参照波長フィルタFig. 1 is a diagram of the principle of three-wavelength infrared spectroscopy, Fig. 2 is a schematic configuration diagram of an apparatus for carrying out the measurement method according to the present invention, Fig. 3 is an external view of the measuring apparatus, and Fig. 4 Figure 5 shows the relationship between the amount of oil applied and the output voltage to see the influence of the surface treatment of the steel plate, and Figure 5 shows the relationship between the amount of oil applied and the output voltage to see the effect of different types of oil. Figure 6 is a diagram showing errors in measurement accuracy due to deviations in measurement distance.
FIG. 7 is a diagram showing errors in measurement accuracy due to deviations in the irradiation angle. 1... Measuring head 2... Moving device 3... Control device 10... Oil coated steel plate 11... Light source 12... Filter wheel 13... Drive motor 14... Condensing lens 15 . . . Light amount detector 16 . . . Gain adjustment section 21 . . . Main body 22 . Display parts Sl, S2...Measurement wavelength filters R, R2...Reference wavelength filters
Claims (3)
ィルタを通して選択的に選ばれた１つの吸収波長と２つ
の参照波長の赤外光を順次照射し、上記３つの波長の反
射光量から上記防錆油の付着量を測定する防錆油の付着
量測定方法。(1) A steel plate coated with anti-corrosion oil is sequentially irradiated with infrared light of one absorption wavelength and two reference wavelengths selectively selected through multiple rotating filters, and the amount of reflected light of the three wavelengths A method for measuring the amount of attached rust preventive oil, which measures the amount of the above rust preventive oil attached.
の付着量測定方法。(2) The method for measuring the amount of rust preventive oil deposited according to claim 1, wherein the reference wavelength is one.
波長フィルタ及びその吸収波長帯の近傍の波長帯に合わ
せた少なくとも１つの参照波長フィルタを備えた回転す
るフィルタホィールと、該フィルタホィールを介して上
記防錆油を塗布した鋼板に照射された各波長の反射光の
光量を検出する光量検出器を備えた測定ヘッドと； 該測定ヘッドを鋼板の板幅方向に移動させる移動装置と
； 上記光量検出器により検出された各波長の反射光量から
上記防錆油の付着量を演算しその出力を表示する制御装
置と； を備えた防錆油の付着量測定装置。(3) a rotating filter wheel comprising a measurement wavelength filter tuned to a wavelength band in which the rust preventive oil absorbs infrared light and at least one reference wavelength filter tuned to a wavelength band near the absorption wavelength band; a measurement head equipped with a light amount detector that detects the amount of reflected light of each wavelength irradiated onto the steel plate coated with the rust preventive oil via a filter wheel; movement for moving the measurement head in the width direction of the steel plate; An apparatus for measuring the amount of attached rust preventive oil, comprising: an apparatus; a control device that calculates the amount of attached rust preventive oil from the amount of reflected light of each wavelength detected by the light amount detector and displays the output;
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5380390A JP2943215B2 (en) | 1990-03-07 | 1990-03-07 | Method and apparatus for measuring the amount of deposited rust-preventive oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5380390A JP2943215B2 (en) | 1990-03-07 | 1990-03-07 | Method and apparatus for measuring the amount of deposited rust-preventive oil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03255937A true JPH03255937A (en) | 1991-11-14 |
| JP2943215B2 JP2943215B2 (en) | 1999-08-30 |
Family
ID=12952970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5380390A Expired - Fee Related JP2943215B2 (en) | 1990-03-07 | 1990-03-07 | Method and apparatus for measuring the amount of deposited rust-preventive oil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2943215B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001092820A1 (en) * | 2000-05-26 | 2001-12-06 | Infralytic Gmbh | Method and device for determining the thickness of transparent organic layers |
| JP2008215879A (en) * | 2007-02-28 | 2008-09-18 | Toyota Motor Corp | Cleanness judging device and method |
| JP2018063144A (en) * | 2016-10-12 | 2018-04-19 | リョーエイ株式会社 | Method and device for inspecting oil film |
| US9988242B1 (en) | 2017-01-11 | 2018-06-05 | Otis Elevator Company | Elevator rail healthy monitoring method |
-
1990
- 1990-03-07 JP JP5380390A patent/JP2943215B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001092820A1 (en) * | 2000-05-26 | 2001-12-06 | Infralytic Gmbh | Method and device for determining the thickness of transparent organic layers |
| JP2008215879A (en) * | 2007-02-28 | 2008-09-18 | Toyota Motor Corp | Cleanness judging device and method |
| JP2018063144A (en) * | 2016-10-12 | 2018-04-19 | リョーエイ株式会社 | Method and device for inspecting oil film |
| US9988242B1 (en) | 2017-01-11 | 2018-06-05 | Otis Elevator Company | Elevator rail healthy monitoring method |
| WO2018132433A1 (en) * | 2017-01-11 | 2018-07-19 | Otis Elevator Company | Elevator rail health monitoring method |
| CN110167862A (en) * | 2017-01-11 | 2019-08-23 | 奥的斯电梯公司 | Elevator rail health monitor method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2943215B2 (en) | 1999-08-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20060177566A1 (en) | Anodizing system with a coating thickness monitor and an anodized product | |
| US5289266A (en) | Noncontact, on-line determination of phosphate layer thickness and composition of a phosphate coated surface | |
| JPH0678892B2 (en) | Film thickness measuring instrument | |
| JP5426442B2 (en) | Method for measuring film thickness of coating film coated on surface of belt-shaped metal material and calibration plate | |
| JPH03255937A (en) | Method and device for measuring sticking amount of rust preventive oil | |
| JPH01132935A (en) | Method and apparatus for analyzing film | |
| JPH03252512A (en) | Method and device for on-line measurement of oil film or coated film | |
| CN108168445A (en) | Sheet metal print easy to use applies wet-film thickness on-line detecting system | |
| JPH0431522B2 (en) | ||
| US5506407A (en) | High resolution high speed film measuring apparatus and method | |
| JPH07243970A (en) | Applied oil quantity measuring method on metal material surface and device therefor | |
| JP2004301672A (en) | Deposited film amount measuring instrument for inorganic/organic film-coated metallic material | |
| JPS6217166B2 (en) | ||
| JP2892531B2 (en) | Method and apparatus for measuring oil amount | |
| JPS63242375A (en) | Method for measuring thickness of coated film | |
| EP0413943A1 (en) | Non-contact on-line determination of phosphate layer thickness and composition of a phosphate coated surface | |
| JP3331169B2 (en) | Measurement method of oil amount on steel sheet surface | |
| JPH01132936A (en) | Method and apparatus for analyzing film | |
| JP3508452B2 (en) | Method and apparatus for measuring oil coating amount on metal material surface | |
| JPS63235805A (en) | Method and apparatus for measuring thickness of film | |
| JPH0526625A (en) | Oil film quantity measuring method and device | |
| KR100223142B1 (en) | Method and apparatus for measuring oiling volume | |
| JPH0690014B2 (en) | How to measure the amount of oil applied to the surface of steel sheet | |
| KR100299453B1 (en) | Method of measuring surface cleanness of steel plate | |
| JPH11241912A (en) | Film thickness measuring method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |