JP2554236Y2 - Hydraulic oil / lubricating oil hue measuring device - Google Patents
Hydraulic oil / lubricating oil hue measuring deviceInfo
- Publication number
- JP2554236Y2 JP2554236Y2 JP1989014692U JP1469289U JP2554236Y2 JP 2554236 Y2 JP2554236 Y2 JP 2554236Y2 JP 1989014692 U JP1989014692 U JP 1989014692U JP 1469289 U JP1469289 U JP 1469289U JP 2554236 Y2 JP2554236 Y2 JP 2554236Y2
- Authority
- JP
- Japan
- Prior art keywords
- light
- oil
- measured
- digital signal
- hue
- 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.)
- Expired - Lifetime
Links
Description
【考案の詳細な説明】 ［産業上の利用分野］ この考案は作動油・潤滑油の色相を測定する装置に関
するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial application field] The present invention relates to a device for measuring the hue of hydraulic oil and lubricating oil.
［従来の技術］ 従来の色相測定装置のブロック構成図を第５図に示
す。可視光領域の全ての波長を含む分光放射輝度特性を
持つ光源８から発せられた光は被測定油９を透過し、そ
の透過光は光源８からの光を正面から受けるように設置
された受光素子10で電流に変換される。受光素子10は第
６図の（x1）、（ｙ）、（ｚ）、に示されるような分光
感度特性をそれぞれ持った３個の受光素子を有し、これ
ら３個の受光素子10で受光された信号はそれぞれ光電流
／電圧変換器11a,11b,11cによって電圧信号に変換され
た後、アナログ／デジタル変換器12でデジタル信号に変
換され、演算部13を経て表示器14に表示される。[Prior Art] FIG. 5 shows a block diagram of a conventional hue measuring device. Light emitted from a light source 8 having a spectral radiance characteristic including all wavelengths in the visible light region passes through the oil 9 to be measured, and the transmitted light is a light receiving light set to receive the light from the light source 8 from the front. The element 10 converts the current into a current. The light receiving element 10 has three light receiving elements having spectral sensitivity characteristics as shown in (x1), (y) and (z) of FIG. 6, respectively. The converted signals are converted into voltage signals by photocurrent / voltage converters 11a, 11b, and 11c, respectively, converted into digital signals by an analog / digital converter 12, and displayed on a display 14 via an arithmetic unit 13. .
CIE1931XYZ表色系（JIS Z8701−（1982））は第２図
に示すような等色関数を持ち、この表色系に適合したデ
ータを出力するためには（x2）の部分の分光感度により
得られるであろう信号を考慮に入れる必要があり次のよ
うな方法が用いられる。The CIE1931XYZ color system (JIS Z8701- (1982)) has a color matching function as shown in Fig. 2. To output data conforming to this color system, it is obtained from the spectral sensitivity of (x2). It is necessary to take into account the signals that will be generated and the following method is used.
（x2）の様な分光感度特性を持った受光素子があると
仮定するときこれより得られるであろう信号X2は（ｚ）
の様な分光感度特性をもった受光素子によって得られる
信号Ｚを用いてX2＝kZ（ｋは定数）と近似することがで
き、（x1）の様な分光感度特性を持った受光素子によっ
て得られる信号をx1、（ｙ）の様な分光感度特性を持っ
た受光素子によって得られる信号をＹとすると色相を決
定するパラメータx,yは次のように表される。Assuming that there is a light receiving element having a spectral sensitivity characteristic such as (x2), the signal X2 that can be obtained from this is (z)
Can be approximated to X2 = kZ (k is a constant) by using the signal Z obtained by the light receiving element having the spectral sensitivity characteristic as described above, and obtained by the light receiving element having the spectral sensitivity characteristic as (x1). Assuming that a signal obtained is x1 and a signal obtained by a light receiving element having a spectral sensitivity characteristic such as (y) is Y, parameters x and y for determining hue are expressed as follows.
作動油・潤滑油の色相判定はJIS規格のASTM色により
行われていた。つまりASTM色試験器により色相の測定を
行うが、この測定は、試料と水をそれぞれ別の試料容器
に入れ、水を入れた試料容器を標準色ガラス側とし、外
部から光が入射しない状態として光源電球を点灯し、光
源電球からの光の両試料容器の透過光色を目視により比
較し、標準色ガラスを順次交換し、両透過光色が一致し
た時の標準色ガラスの符号（級）をASTM色とする。この
ようにしてJISで決められた0.5乃至８までの0.5刻みの
級の何れの色相であるかを測定している。 Hue judgment of hydraulic oil and lubricating oil was performed by AST standard ASTM color. In other words, the hue is measured using an ASTM color tester.In this measurement, the sample and water are placed in separate sample containers, and the sample container filled with water is used as the standard color glass side, with no light incident from the outside. The light source light bulb is turned on, the transmitted light color of the light from the light source light bulb in both sample containers is visually compared, and the standard color glass is exchanged sequentially, and the sign (grade) of the standard color glass when both transmitted light colors match. Is the ASTM color. In this way, the hue of the class in 0.5 increments from 0.5 to 8 determined by JIS is measured.
［考案が解決しようとする課題］ このような方法だと色を判断するための演算に上記の
ようにX1,Y,Zの３つの変数を用いるので演算部13での演
算処理、演算装置が複雑になるという欠点がある。[Problem to be Solved by the Invention] With such a method, the three variables X1, Y, and Z are used for the operation for determining the color as described above. There is a disadvantage that it becomes complicated.
一方、ASTM色試験器による測定では、市販のASTM色試
験器は例えば500×300×400mm3、５〜7kg程度であり、
比較的大形、かつ重量も大であり、手軽に持ち運んで測
定するには適さなかった。しかも目視による測定である
ため、個人差が出易い欠点があった。On the other hand, in the measurement with the ASTM color tester, a commercially available ASTM color tester is, for example, 500 × 300 × 400 mm 3 , about 5 to 7 kg,
It was relatively large and heavy, and was not suitable for easy carrying and measurement. In addition, since the measurement is carried out by visual observation, there is a disadvantage that individual differences easily occur.
この考案は、このような複雑な演算装置、演算処理を
もっと簡単なものにする作動油・潤滑油の色相測定装置
を提供することを目的とする。An object of the present invention is to provide a hydraulic oil / lubricating oil hue measuring device which makes such a complicated arithmetic device and arithmetic processing simpler.
［課題を解決するための手段］ 上記目的を達成するため、この装置ではJIS−K2580
のASTM潤滑油基準において、第７図に示すように青色の
割合が非常に少ないところに着眼し、赤と緑の２色のみ
を潤滑油の色相判定のパラメータとして採用し、受光素
子もそれぞれ赤及び緑の波長付近にピークを持つ２個の
受光素子を用いて比測定油の透過光を受光し、その受光
レベルを対数比演算し、その出力をデジタル信号に変換
して表示器に表示する。[Means for solving the problem] In order to achieve the above object, this device uses JIS-K2580
In the ASTM standard for lubricating oil, we focused on the point where the ratio of blue was very small as shown in Fig. 7, and adopted only two colors, red and green, as parameters for judging the hue of the lubricating oil. And the two light receiving elements having peaks near the green wavelength are used to receive the transmitted light of the ratio measurement oil, calculate the logarithmic ratio of the received light level, convert the output to a digital signal, and display it on the display. .
［作用］ このように色相判定のパラメータを赤及び緑の２つと
することにより演算部での処理は対数比演算でよく、演
算処理、演算装置を簡単なものにすることができ、しか
もASTM色に準じた測定結果が得られる。[Operation] By setting the parameters of the hue determination to two, red and green, the processing in the calculation unit may be a logarithmic ratio calculation, and the calculation processing and the calculation device can be simplified, and the ASTM color The measurement result according to the above is obtained.
［実施例］ 以下図面を用いてこの考案の一実施例について詳細に
説明する。Embodiment An embodiment of the present invention will be described below in detail with reference to the drawings.
第１図において第２図に示すように可視光領域の波長
を含むような分光放射輝度特性を持ち常に一定照度の光
を照射するための光源１から発せられた光は被測定油２
を透過して受光素子３に達する。受光素子３は第３図に
示すような赤及び緑の周波数帯域付近すなわち650±50n
m、530±30nmの間にそれぞれ分光感度のピークを持つ２
個の受光素子を有し、これらの２個の受光素子はそれぞ
れの分光感度内の光を受けて電流に変換する。これらの
電流は光電流／電圧変換器4a,4bで電圧信号V1,V2に変換
され、これら電圧信号V1,V2は演算部５でその比の対数l
og（V1/V2）の演算が行われ、演算部５の出力はアナロ
グ／デジタル変換器６でデジタル信号に変換され、その
デジタル信号は表示器７にASTM色として表示される。In FIG. 1, as shown in FIG. 2, light emitted from a light source 1 having a spectral radiance characteristic including a wavelength in a visible light region and constantly emitting light of a constant illuminance is an oil to be measured 2.
And reaches the light receiving element 3. The light receiving element 3 is located near the red and green frequency bands as shown in FIG.
m, each having a spectral sensitivity peak between 530 ± 30 nm 2
Light receiving elements, and these two light receiving elements receive light within their respective spectral sensitivities and convert them into current. These currents are converted into voltage signals V1 and V2 by photocurrent / voltage converters 4a and 4b, and these voltage signals V1 and V2 are logarithm-l
The calculation of og (V1 / V2) is performed, the output of the calculation unit 5 is converted into a digital signal by the analog / digital converter 6, and the digital signal is displayed on the display 7 as an ASTM color.
上記のような色相測定装置を用いて試料の色相を測定
し、その測定値とJIS−K2580 の ASTM 色試験器による
測定値との相関を第４図に示した。両者はよく対応して
いることがわかる。The hue of the sample was measured using the above-described hue measuring apparatus, and the correlation between the measured value and the value measured by the ASTM color tester of JIS-K2580 is shown in FIG. It turns out that both correspond well.
［考案の効果］ この考案によれば従来受光素子が３個必要だったもの
が２個ですむようになり、 の演算が必要だったものが、log（V1/V2）の演算で済む
ようになって、その分ハードウエアの構成も簡単になっ
た。このため例えば95×210×400mm3、0.7kg程度のもの
とすることができ、持ち運びが簡単であり、必要に応じ
て現場で測定することができる。しかも、目視検査では
なく、表示器に測定結果が自動的に表示され、個人差が
なく、正確な測定結果が得られ、かつ操作も簡単であ
る。[Effects of the invention] According to the invention, two light receiving elements are required instead of three conventionally, The calculation of log (V1 / V2) can be done instead of the calculation that required, and the hardware configuration has been simplified accordingly. For this reason, it can be, for example, about 95 × 210 × 400 mm 3 , about 0.7 kg, easy to carry, and can be measured on site if necessary. In addition, the measurement result is automatically displayed on the display unit instead of a visual inspection, and accurate measurement results can be obtained without individual differences, and the operation is simple.
第１図はこの考案の実施例を示すブロック図、第２図は
レンズ付きランプの分光放射輝度特性の一例を示す図、
第３図は受光素子の分光感度特性の一例を示す図、第４
図はこの考案の装置を用いて測定した被測定油の測定値
を示す図、第５図は従来の色相測定装置を示すブロック
図、第６図はCIE1931XYZ表色系の等色関数を表したグラ
フ、第７図は、ASTM色符号の基本色混合比を示す図であ
る。FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a diagram showing an example of spectral radiance characteristics of a lamp with a lens,
FIG. 3 is a diagram showing an example of the spectral sensitivity characteristic of the light receiving element.
The figure shows the measured values of the oil to be measured measured using the device of the present invention, FIG. 5 is a block diagram showing a conventional hue measuring device, and FIG. 6 shows the color matching function of the CIE1931XYZ color system. FIG. 7 is a graph showing the basic color mixing ratio of the ASTM color code.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭52−62488（ＪＰ，Ａ) 特開 昭60−111942（ＪＰ，Ａ) 特公 昭62−35046（ＪＰ，Ｂ２) ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-52-62488 (JP, A) JP-A-60-111942 (JP, A) JP-B-62-35046 (JP, B2)
Claims (1)
度特性を持った光を被測定油に照射させるための光源
と、 上記被測定油を透過してきた光を受光し、650±50nm、5
30±30nmの各間にそれぞれ分光感度のピークをもつ第1,
第２の受光素子と、 これら第1,第２の受光素子に入射した光によって発生し
た光電流をそれぞれ電圧信号V1,V2に変換する第1,第２
の光電流／電圧変換器と、 これら第1,第２の光電流／電圧変換器の出力電圧信号の
比の対数log（V1/V2）を演算する演算部と、 その演算部の出力アナログ信号をデジタル信号に変換す
るためのアナログ／デジタル変換器と、 その変換されたデジタル信号をASTM色に準じたものとし
て表示するための表示器とを有する作動油・潤滑油の色
相測定装置。A light source for irradiating the oil to be measured with light having a spectral radiance characteristic including all wavelengths in a visible light region; and a light source for receiving the light transmitted through the oil to be measured, the light having a wavelength of 650 ± 50 nm. ,Five
1st and 1st with spectral sensitivity peaks between 30 ± 30nm
A second light receiving element, and first and second light emitting elements respectively converting photocurrents generated by light incident on the first and second light receiving elements into voltage signals V1 and V2.
A photocurrent / voltage converter, a calculation unit for calculating the logarithm log (V1 / V2) of the ratio of the output voltage signals of the first and second photocurrent / voltage converters, and an output analog signal of the calculation unit A hue measuring device for hydraulic oil and lubricating oil, comprising: an analog / digital converter for converting a digital signal into a digital signal; and a display for displaying the converted digital signal as being in accordance with the ASTM color.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989014692U JP2554236Y2 (en) | 1989-02-10 | 1989-02-10 | Hydraulic oil / lubricating oil hue measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989014692U JP2554236Y2 (en) | 1989-02-10 | 1989-02-10 | Hydraulic oil / lubricating oil hue measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02107045U JPH02107045U (en) | 1990-08-24 |
| JP2554236Y2 true JP2554236Y2 (en) | 1997-11-17 |
Family
ID=31226120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989014692U Expired - Lifetime JP2554236Y2 (en) | 1989-02-10 | 1989-02-10 | Hydraulic oil / lubricating oil hue measuring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2554236Y2 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5262488A (en) * | 1975-11-19 | 1977-05-23 | Hitachi Ltd | Detector |
| JPS60111942A (en) * | 1983-11-22 | 1985-06-18 | Matsushita Electric Ind Co Ltd | Optical oil sensor |
| JPH0639942B2 (en) * | 1985-08-08 | 1994-05-25 | 三菱電機株式会社 | Stirling engine heat exchanger |
-
1989
- 1989-02-10 JP JP1989014692U patent/JP2554236Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02107045U (en) | 1990-08-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11630065B2 (en) | Apparatus and method for fluorescence grading of gemstones | |
| US10161796B1 (en) | LED lighting based multispectral imaging system for color measurement | |
| US5432609A (en) | Two-dimensional colorimeter | |
| Segnini et al. | A low cost video technique for colour measurement of potato chips | |
| EP3598108A1 (en) | Apparatus and method for assessing optical quality of gemstones | |
| CN107144353B (en) | A kind of textile chromatism measurement method based on digital camera | |
| CA2024905A1 (en) | Meat freshness measuring apparatus | |
| GB2364568A (en) | Colour identifying device | |
| US20050219380A1 (en) | Digital camera for determining chromaticity coordinates and related color temperature of an object and method thereof | |
| WO2003030524A2 (en) | A method of predicting reflectance functions | |
| JP2554236Y2 (en) | Hydraulic oil / lubricating oil hue measuring device | |
| JP4174707B2 (en) | Spectroscopic measurement system, color reproduction system | |
| JPH116765A (en) | Pearl color classifying device | |
| Laming et al. | PC color recognition using led and software techniques | |
| RU2366907C1 (en) | Method for digital photoelectric colorimetry | |
| CN106885630A (en) | A kind of method and device that spectral measurement is carried out based on color | |
| JP2581464Y2 (en) | Filter evaluation device | |
| JPH02293634A (en) | Chromaticity measuring instrument | |
| von Hippel | Galactic Structure from Faint Stromgren Photometry: The Catalog of Observations | |
| JP3493168B2 (en) | Object color measuring method and object color measuring device | |
| RU85691U1 (en) | COLOR MEASURING DEVICE | |
| JP2005201694A (en) | Color chip processing device, color chip processing method and color chip processing program | |
| JPS6287820A (en) | Brightness measuring apparatus | |
| JPH07306094A (en) | Measuring instrument of degree of stain of factory drain | |
| JPH11295149A (en) | Color judging method for electric wire |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090309 Year of fee payment: 8 |
|
| LAPS | Cancellation because of no payment of annual fees |