JPH0332013B2 - - Google Patents
Info
- Publication number
- JPH0332013B2 JPH0332013B2 JP60105592A JP10559285A JPH0332013B2 JP H0332013 B2 JPH0332013 B2 JP H0332013B2 JP 60105592 A JP60105592 A JP 60105592A JP 10559285 A JP10559285 A JP 10559285A JP H0332013 B2 JPH0332013 B2 JP H0332013B2
- Authority
- JP
- Japan
- Prior art keywords
- lubricating oil
- light
- sample
- type
- emitting element
- 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
- 239000010687 lubricating oil Substances 0.000 claims description 33
- 230000005856 abnormality Effects 0.000 claims description 9
- 239000003921 oil Substances 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000006866 deterioration Effects 0.000 claims description 3
- 238000002835 absorbance Methods 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 230000031700 light absorption Effects 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000862 absorption spectrum Methods 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Description
【発明の詳細な説明】
「産業上の利用分野」
この発明は機械設備に用いられている潤滑油の
劣化、潤滑油中の金属摩耗粉などの異物の量の増
加などの潤滑油の異常を、試料潤滑油に光を透過
させ、その透過光から検出する光透過形潤滑油異
常検出器に関する。[Detailed Description of the Invention] "Industrial Application Field" This invention detects abnormalities in lubricating oil such as deterioration of lubricating oil used in mechanical equipment and increase in the amount of foreign substances such as metal wear particles in lubricating oil. , relates to a light transmission type lubricating oil abnormality detector that transmits light through a sample lubricating oil and detects from the transmitted light.
「従来の技術」
潤滑油は機械設備に摺動部において二つの固体
間の摩擦をへらして摩耗、発熱などを少なくする
ことを目的として広く使用されており、設備管理
の上では、この潤滑管理は非常に重要とされてい
る。この潤滑油の劣化は、機械設備の摺動部の潤
滑不良をまねき、部品の異常摩耗へとつながり、
設備故障の大きな原因となつており、また機械設
備の摺動部に異常摩耗が発生すると潤滑油中には
金属摩耗粉等が分散されることになる。従つて機
械設備に用いられている潤滑油の異常の程度を検
出することは、機械設備の摺動部の異常を、重大
応な設備故障に至るまえに発見することが可能と
なり、機械設備の安定運転をはかる上で非常で有
効な方法となる。"Conventional technology" Lubricating oil is widely used in mechanical equipment for the purpose of reducing friction between two solid bodies in sliding parts to reduce wear and heat generation. is considered very important. This deterioration of lubricating oil leads to poor lubrication of the sliding parts of mechanical equipment, leading to abnormal wear of parts.
It is a major cause of equipment failure, and when abnormal wear occurs on the sliding parts of mechanical equipment, metal wear particles and the like will be dispersed in the lubricating oil. Therefore, detecting the degree of abnormality in the lubricating oil used in mechanical equipment makes it possible to discover abnormalities in the sliding parts of mechanical equipment before they lead to serious equipment failure, and to improve the quality of mechanical equipment. This is a very effective method for ensuring stable operation.
しかしながら従来においては、この潤滑油の異
常の程度を検出する方法としては、例えば潤滑油
を非常に微細なフイルターに通過させ、油中の金
属摩耗粉等の異物をフイルター上に捕捉し、その
フイルターを観察したり、粒子量を計測して、金
属摩耗粉等の異物の量を測定していた。この方法
は潤滑油の過に非常に手間がかかり、定量性に
欠けていた。 However, conventional methods for detecting the degree of abnormality in lubricating oil include, for example, passing lubricating oil through a very fine filter, trapping foreign matter such as metal wear particles in the oil, and The amount of foreign matter such as metal wear powder was measured by observing and measuring the amount of particles. This method was very time-consuming due to the amount of lubricating oil and lacked quantitative properties.
光の透過を利用して潤滑油の異常を検出するこ
とも行われている。しかし実際に現場で使用され
ている潤滑油は多種多様であり、潤滑油の透過度
も油種により異なり、機械設備の潤滑部の機械要
素の種類、潤滑条件によつて最適な潤滑油が選択
されている。潤滑油の新油の吸光度は第８図に示
すように潤滑油の種類により異る。第８図は潤滑
油Ａを吸光度０とし、完全遮光状態、つまり透過
光量０（暗状態）を吸光度100（％）とした時の潤
滑油Ａ〜Ｍの新油の吸光度を示す。 The transmission of light has also been used to detect abnormalities in lubricating oil. However, there are a wide variety of lubricating oils actually used in the field, and the permeability of the lubricating oil also varies depending on the type of oil, and the optimal lubricating oil is selected depending on the type of mechanical elements in the lubricated part of mechanical equipment and the lubrication conditions. has been done. The absorbance of fresh lubricating oil varies depending on the type of lubricating oil, as shown in FIG. FIG. 8 shows the absorbance of new lubricating oils A to M when the absorbance of lubricating oil A is 0 and the absorbance is 100 (%) when the completely light-shielded state, that is, the amount of transmitted light is 0 (dark state), is set to 100 (%).
「発明が解決しようとする問題点」
このため従来においては測定する潤滑油ごとに
基準となる新油と異常とされる程度に劣化した油
とにより測定器を校正する必要があり、測定に手
数を要し、更に測定された値により、潤滑油の異
常や機械設備の摺動部の異常程度を即座に判定す
ることはできなかつた。更に潤滑油には例えば第
９図に示すように光の吸収スペクトルに特徴を持
つており、その特異なピーク波長を避けて光源の
波長を選定しないと、光源の波長の変化による吸
光度の変化を大きく受けてしまう。また、光の吸
収と潤滑油濃度との関係は、一般的にランバート
ベルの法則に基づいており、入射光の強さI1と潤
滑油から出てくる透過光の強さI2との関係は、試
料容器の長さ（セル長）ｌ、サンプル濃度ｄ、波
長λで吸収する潤滑油の種類による吸光係数ｅ
（λ）とした時に、
I2＝10-e(〓) ``Problem to be solved by the invention'' For this reason, in the past, for each lubricating oil to be measured, it was necessary to calibrate the measuring instrument using new oil as a standard and oil that has deteriorated to the extent that it is considered abnormal, making measurement laborious. Furthermore, it was not possible to immediately determine the degree of abnormality in the lubricating oil or the sliding parts of mechanical equipment based on the measured values. Furthermore, lubricating oil has characteristics in its light absorption spectrum, as shown in Figure 9, and unless the wavelength of the light source is selected while avoiding the unique peak wavelength, the absorbance will change due to changes in the wavelength of the light source. It will be greatly affected. In addition, the relationship between light absorption and lubricant concentration is generally based on Lambert's law, and the relationship between the intensity of incident light I1 and the intensity of transmitted light coming out of lubricant I2 is the length of the sample container (cell length) l, the sample concentration d, and the extinction coefficient e depending on the type of lubricating oil that absorbs at the wavelength λ.
(λ), I 2 = 10 -e( 〓 )
Claims (1)
を投射し、その試料潤滑油から透過した光を受光
素子で受光して電気信号に変換し、その電気信号
を調整回路を通じて表示手段へ供給して上記試料
潤滑油の劣化の程度を表示する光透過形潤滑油異
常検出器において、 上記発光素子から上記試料潤滑油に投射する光
の波長は450nｍ〜950nｍに選定され、 上記発光素子から上記受光素子への光の通路に
おける上記試料潤滑油内の長さは10mm〜25mmに選
定され、 上記調整回路は、上記試料潤滑油の種類に応じ
て零点及びレンジが切替スイツチで切替えられ、
これら零点及びレンジが、上記潤滑油の各種類の
新油状態の代表及び劣化した状態の代表に対応し
てそれぞれ選定され、 ていることを特徴とする光透過形潤滑油異常検出
器。[Claims] 1. Light is projected from a light emitting element onto a sample lubricating oil placed in a container, the light transmitted from the sample lubricating oil is received by a light receiving element and converted into an electrical signal, and the electrical signal is adjusted. In the light transmission type lubricating oil abnormality detector that displays the degree of deterioration of the sample lubricating oil by supplying it to a display means through a circuit, the wavelength of the light projected from the light emitting element to the sample lubricating oil is selected to be 450 nm to 950 nm. , The length of the light path from the light emitting element to the light receiving element within the sample lubricating oil is selected to be 10 mm to 25 mm, and the adjusting circuit has a zero point and range switching switch according to the type of the sample lubricating oil. is switched with
A light transmission type lubricating oil abnormality detector characterized in that these zero points and ranges are selected corresponding to representative new oil states and representative deteriorated states of each type of lubricating oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10559285A JPS61264238A (en) | 1985-05-17 | 1985-05-17 | Light-transmissive type lubricant abnormality detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10559285A JPS61264238A (en) | 1985-05-17 | 1985-05-17 | Light-transmissive type lubricant abnormality detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61264238A JPS61264238A (en) | 1986-11-22 |
| JPH0332013B2 true JPH0332013B2 (en) | 1991-05-09 |
Family
ID=14411767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10559285A Granted JPS61264238A (en) | 1985-05-17 | 1985-05-17 | Light-transmissive type lubricant abnormality detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61264238A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005103228A2 (en) | 2004-04-26 | 2005-11-03 | Ajinomoto Co., Inc. | L-amino acid-producing bacterium and a method for producing l-amino acid |
| EP3098319A1 (en) | 2015-05-28 | 2016-11-30 | Ajinomoto Co., Inc. | A method for producing an l-amino acid using a bacterium of the family enterobacteriaceae having an attenuated expression of a gsha gene |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2570724B2 (en) * | 1987-02-26 | 1997-01-16 | 株式会社日本自動車部品総合研究所 | Pollution detector |
| EP0384095B1 (en) * | 1989-02-20 | 1993-09-01 | MANNESMANN Aktiengesellschaft | Matrix needle printhead of the pre-tensed type |
| JPH0466569U (en) * | 1990-10-19 | 1992-06-11 | ||
| WO2015060444A1 (en) * | 2013-10-25 | 2015-04-30 | ナブテスコ 株式会社 | Lubricant deterioration sensor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5334591A (en) * | 1976-09-10 | 1978-03-31 | Sumitomo Metal Ind | Measuring instrument for deterioration of oil |
-
1985
- 1985-05-17 JP JP10559285A patent/JPS61264238A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5334591A (en) * | 1976-09-10 | 1978-03-31 | Sumitomo Metal Ind | Measuring instrument for deterioration of oil |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005103228A2 (en) | 2004-04-26 | 2005-11-03 | Ajinomoto Co., Inc. | L-amino acid-producing bacterium and a method for producing l-amino acid |
| EP3098319A1 (en) | 2015-05-28 | 2016-11-30 | Ajinomoto Co., Inc. | A method for producing an l-amino acid using a bacterium of the family enterobacteriaceae having an attenuated expression of a gsha gene |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61264238A (en) | 1986-11-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |