JPH02107045U - - Google Patents
Info
- Publication number
- JPH02107045U JPH02107045U JP1469289U JP1469289U JPH02107045U JP H02107045 U JPH02107045 U JP H02107045U JP 1469289 U JP1469289 U JP 1469289U JP 1469289 U JP1469289 U JP 1469289U JP H02107045 U JPH02107045 U JP H02107045U
- Authority
- JP
- Japan
- Prior art keywords
- light
- oil
- photocurrent
- photodetectors
- measured
- 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
- 230000003595 spectral effect Effects 0.000 claims description 4
- 230000035945 sensitivity Effects 0.000 claims description 2
- 239000003921 oil Substances 0.000 claims 2
- 239000010720 hydraulic oil Substances 0.000 claims 1
- 230000001678 irradiating effect Effects 0.000 claims 1
- 239000010687 lubricating oil Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Landscapes
- Spectrometry And Color Measurement (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Description
第１図はこの考案の実施例を示すブロツク図、
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ツク図、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。
Figure 1 is a block diagram showing an embodiment of this invention.
Figure 2 shows an example of the spectral radiance characteristics of a lamp with a lens, Figure 3 shows an example of the spectral sensitivity characteristics of a light receiving element, and Figure 4 shows the oil to be measured using the device of this invention. Figure 5 is a block diagram showing a conventional hue measurement device, Figure 6 is a graph representing color matching functions of the CIE1931XYZ color system, and Figure 7 is a basic color mixture of ASTM color codes. It is a figure showing a ratio.
Claims (1)
性を持つ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、赤及
び緑の波長付近にそれぞれ分光感度のピークをも
つ２個の受光素子と、 これら受光素子に入射した光によつて発生した
光電流を電圧信号に変換する２個の光電流／電圧
変換器と、 これら光電流／電圧変換器の出力電圧信号を対
数比演算する演算部と、 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
。[Claims for Utility Model Registration] A light source for irradiating an oil to be measured with light having spectral radiance characteristics including all wavelengths in the visible light region; and a light source for receiving the light transmitted through the oil to be measured; Two photodetectors with spectral sensitivity peaks near red and green wavelengths, and two photocurrent/voltage converters that convert photocurrent generated by light incident on these photodetectors into voltage signals. , an arithmetic unit that calculates the logarithmic ratio of the output voltage signals of these photocurrent/voltage converters, an analog/digital converter that converts the output analog signal of the arithmetic unit into a digital signal, and the converted digital signal. A hydraulic oil/lubricating oil hue measuring device having an indicator for displaying.
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 true JPH02107045U (en) | 1990-08-24 |
| JP2554236Y2 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) |
Citations (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 |
| JPS6235046A (en) * | 1985-08-08 | 1987-02-16 | Mitsubishi Electric Corp | Heat exchanger for stirling engine |
-
1989
- 1989-02-10 JP JP1989014692U patent/JP2554236Y2/en not_active Expired - Lifetime
Patent Citations (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 |
| JPS6235046A (en) * | 1985-08-08 | 1987-02-16 | Mitsubishi Electric Corp | Heat exchanger for stirling engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2554236Y2 (en) | 1997-11-17 |
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