JPS6340855A - Detection for deterioration of oil - Google Patents
Detection for deterioration of oilInfo
- Publication number
- JPS6340855A JPS6340855A JP61182674A JP18267486A JPS6340855A JP S6340855 A JPS6340855 A JP S6340855A JP 61182674 A JP61182674 A JP 61182674A JP 18267486 A JP18267486 A JP 18267486A JP S6340855 A JPS6340855 A JP S6340855A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- deterioration
- detecting
- changes
- ion
- 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.)
- Pending
Links
- 230000006866 deterioration Effects 0.000 title claims abstract description 29
- 238000001514 detection method Methods 0.000 title description 4
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims abstract description 11
- 150000001342 alkaline earth metals Chemical class 0.000 claims abstract description 11
- 230000007935 neutral effect Effects 0.000 claims abstract description 4
- 239000003921 oil Substances 0.000 claims description 46
- 238000000034 method Methods 0.000 claims description 20
- 239000010687 lubricating oil Substances 0.000 claims description 10
- 229910052791 calcium Inorganic materials 0.000 claims description 6
- 229910052749 magnesium Inorganic materials 0.000 claims description 3
- 150000002500 ions Chemical class 0.000 abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 229910001424 calcium ion Inorganic materials 0.000 abstract description 5
- 239000000314 lubricant Substances 0.000 abstract 2
- 230000000593 degrading effect Effects 0.000 abstract 1
- 239000011575 calcium Substances 0.000 description 6
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- 229910052788 barium Inorganic materials 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 229910001420 alkaline earth metal ion Inorganic materials 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 150000001875 compounds Chemical group 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
Description
【発明の詳細な説明】 光鄭３Ｍ没互 本発明は、油の劣化の検知方法に関する。[Detailed description of the invention] Gwangjeong 3M Mutual The present invention relates to a method for detecting oil deterioration.
特に潤滑油の劣化を早期に検知する方法の発明に関する
。In particular, the invention relates to a method for early detection of deterioration of lubricating oil.
、９明の従象挟泗−
油の劣化を測定する方法としては、従来から確実で迅速
な検知方法が知られていない。As a method for measuring the deterioration of oil, no reliable and rapid detection method has hitherto been known.
ただ、その中でも、特開昭５９−３１４３５号のごとく
、透過光を検知する方法、あるいは、特開昭５９−１６
２４４４号のごとく油の中に電流を流し、過渡応答電流
を測定する方法等が開示されている。However, among them, there are methods of detecting transmitted light as in JP-A No. 59-31435, or methods of detecting transmitted light as in JP-A-59-16.
No. 2444 discloses a method of passing a current through oil and measuring a transient response current.
以上の方法は、迅速性、正確性に問題があり、より好ま
しい方法が望まれている。The above methods have problems in speed and accuracy, and a more preferable method is desired.
本発明者等は、鋭意検討した結果、以下の発明を見い出
した。As a result of intensive study, the present inventors discovered the following invention.
発明の構成
本発明は、油中のアルカリ土類金属のイオンの変化を、
Ｉ ５ＦＥＴセンサで検知し、浦の劣化程度を検知する
ことを特徴とする浦の劣化の検知方法に関する。Structure of the Invention The present invention aims to reduce the change in alkaline earth metal ions in oil.
The present invention relates to a method for detecting the deterioration of a ura, which is characterized in that the degree of deterioration of the ura is detected by using an I5FET sensor.
その実施態様としては、アルカリ土類金属が、Ｃａ、Ｍ
ｇのうら一種以上であることを特徴とする上記の油の劣
化の検知方法を提供する。In embodiments, the alkaline earth metals include Ca, M
The present invention provides a method for detecting deterioration of oil as described above, characterized in that the deterioration of oil is one or more types of oil.
さらに他の実施態様としては、ＩＳＦＥＴセンサの感応
膜がニュートラルキャリアである上記油の劣化の検知方
法及び油が、潤滑油であることを特徴とする上記の油の
劣化の検知方法を提供する。Still other embodiments provide the above method for detecting oil deterioration, in which the sensitive membrane of the ISFET sensor is a neutral carrier, and the above method for detecting oil deterioration, in which the oil is lubricating oil.
さらに他の発明として油中の水分を油中水分検知器によ
り検知し、油中のアルカリ土類金属のイオン化の変化を
、Ｉ Ｓ ＦＥＴセンサで検知し、油の劣化程度を検知
することを特徴とする油の劣化の検知方法を提供する。Still another feature of the invention is that moisture in oil is detected by a moisture in oil detector, and changes in the ionization of alkaline earth metals in the oil are detected by an IS FET sensor, thereby detecting the degree of deterioration of the oil. The present invention provides a method for detecting oil deterioration.
公明の４体ωを明
本発明においては、油中のアルカリ土類金属のうち一種
以上の成分のイオン量を検知するものである。In the present invention, the amount of ions of one or more components of alkaline earth metals in oil is detected.
アルカリ土類金属とは。Ｃａ、Ｍｇ、Ｂａ、Ｂｅ、ｓｒ
等である。What are alkaline earth metals? Ca, Mg, Ba, Be, sr
etc.
特に添加剤等に含まれるＣａ、Ｍｇ、Ｂａが。Especially Ca, Mg, and Ba contained in additives.
その対象となる場合が多い。This is often the target.
例えば、上記物質の含量は、０．５〜２．５重量％と多
く存在している。For example, the content of the above substances is as high as 0.5 to 2.5% by weight.
潤滑油では、特にＣａが０．５〜２．５重量％存在する
。In lubricating oils, in particular Ca is present in an amount of 0.5 to 2.5% by weight.
潤滑油は新曲では水分をほとんど含まないが使用が進む
に従い水分を含んでくる。又油が劣化するに従い油中の
アルカリ土類金属は化合物の形態を変化させる。新油で
は炭酸塩であったものが劣化が進むに従い水酸化物や硫
酸塩に変化する。従って油中の水分が増加するに伴い水
に溶解し易くなったアルカリ土類金属は水分中に溶解し
イオン化する。Lubricating oil contains almost no water when it is new, but as it is used more and more, it begins to contain water. Also, as the oil deteriorates, the alkaline earth metals in the oil change their compound form. The carbonates in new oil change to hydroxides and sulfates as the oil deteriorates. Therefore, as the water content in the oil increases, the alkaline earth metal, which becomes more soluble in water, dissolves in the water and becomes ionized.
このイオンの変化を検知すれば、油の劣化を知ることが
できる。By detecting changes in these ions, it is possible to know if the oil is deteriorating.
このイオン量の変化を検知する手段としては。As a means of detecting changes in the amount of ions.
ＩＳＦＥＴセンサを用いる。Uses an ISFET sensor.
Ｉ ５ＦＥＴセンサとは、イオンセンシティブ電解効果
型トランジスタのことである。An I5FET sensor is an ion-sensitive field effect transistor.
該センサの感応膜としては、たとえば、カルシウムイオ
ンの変化を検知する場合は、ニュートラルキャリアを用
いる。For example, when detecting changes in calcium ions, a neutral carrier is used as the sensitive membrane of the sensor.
この感応物質によりカルシウムの２価のイオンの増減を
知ることができ、油の劣化を知ることができるのである
。Using this sensitive substance, it is possible to know the increase or decrease of divalent calcium ions, and it is possible to know the deterioration of oil.
このセンサの具体的な使用方法としては、自動＋ｇの潤
滑油を保持するタンクにＩＳＦＥＴセンサを設置し、運
転席でそのカルシウムイオンの形態の変化を知ることに
より、油の交換時期を知ることができる。船舶等潤滑油
を用いる装置においても同様に用いられる。又油中の水
分があまり増加しない場合は油をサンプリングし別の装
置で強制的に水分を添加し本センサーにより油の劣化の
程度を検知することもできる。又、一方油中の水分は全
く別の手段により検知し、油の劣化をより精度良く知る
ことができる。The specific method of using this sensor is to install an ISFET sensor in a tank that holds automatic +g lubricating oil, and by observing changes in the form of calcium ions from the driver's seat, you can know when to change the oil. can. It is also used in equipment that uses lubricating oil, such as ships. Furthermore, if the water content in the oil does not increase significantly, it is also possible to sample the oil and forcibly add water using another device, and use this sensor to detect the degree of oil deterioration. On the other hand, moisture in the oil can be detected by a completely different means, and the deterioration of the oil can be detected with higher accuracy.
以」二のように１本発明を実施することにより以下の効
果を有する。By implementing the present invention as described below, the following effects can be obtained.
介」Ｌ然米
（１）本発明により、油の劣化が容易に検知することが
できる。特に、自動車等の潤滑油の劣化について連続的
にその劣化を把握することができ、極めて優良な方法で
ある。(1) According to the present invention, oil deterioration can be easily detected. In particular, it is an extremely excellent method as it allows continuous monitoring of the deterioration of lubricating oil in automobiles and the like.
（２）油中水分の検知器と組合せることにより、検知精
度をより高くすることができる。(2) By combining it with a moisture in oil detector, detection accuracy can be increased.
実施例１
容器に未使用の潤滑油と自動車用として１年使用した潤
滑油をそれぞれ配置し、その容器中に本発明に係るＩ
５ＦＥＴセンサを設置し、カルシウムイオンの濃度を測
定した。Example 1 An unused lubricating oil and a lubricating oil that has been used for automobiles for one year are placed in containers, and the I according to the present invention is placed in the containers.
A 5FET sensor was installed to measure the concentration of calcium ions.
測定するに当たって、Ｉ ５ＦＥＴセンサは、比較電極
と同時に、該油中に配置し、比較電極とＩＳ ＦＥＴ間
に生ずる起電力を８１１定して、カルシウムの形態の変
化を測定した。During the measurement, the I5FET sensor was placed in the oil at the same time as the reference electrode, and the electromotive force generated between the reference electrode and the ISFET was fixed to measure changes in the form of calcium.
使用した油中のカルシウムのイオン化の程度は極めて大
きかった。このことから、例えば、自動車を継続して運
転した場合、カルシウムの形態の変化を自動的に検知す
ることができ、油の劣化の程度を知ることができるので
ある。それによって。The degree of ionization of calcium in the oil used was extremely high. From this, for example, when a car is continuously driven, changes in the form of calcium can be automatically detected and the extent of oil deterioration can be determined. Thereby.
浦の交換時期が把握される。The time to replace the ura can be determined.
Claims (5)
ＳＦＥＴセンサで検知し、油の劣化程度を検知すること
を特徴とする油の劣化の検知方法。(1) Changes in the ionization of alkaline earth metals in oil are expressed as I
A method for detecting oil deterioration, characterized by detecting with an SFET sensor and detecting the degree of oil deterioration.
であることを特徴とする特許請求の範囲第１項記載の油
の劣化の検知方法。(2) The method for detecting oil deterioration according to claim 1, wherein the alkaline earth metal is one or more of Ca and Mg.
アであることを特徴とする特許請求の範囲第１項記載の
油の劣化の検知方法。(3) The method for detecting oil deterioration according to claim 1, wherein the sensitive film of the ISFET sensor is a neutral carrier.
囲第１項記載の油の劣化の検知方法。(4) The method for detecting oil deterioration according to claim 1, wherein the oil is a lubricating oil.
のアルカリ土類金属のイオン化の変化を、ＩＳＦＥＴセ
ンサで検知し、油の劣化程度を検知することを特徴とす
る油の劣化の検知方法。(5) A method for detecting oil that is characterized by detecting moisture in the oil using an oil moisture detector, detecting changes in the ionization of alkaline earth metals in the oil using an ISFET sensor, and detecting the degree of oil deterioration. How to detect deterioration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61182674A JPS6340855A (en) | 1986-08-05 | 1986-08-05 | Detection for deterioration of oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61182674A JPS6340855A (en) | 1986-08-05 | 1986-08-05 | Detection for deterioration of oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6340855A true JPS6340855A (en) | 1988-02-22 |
Family
ID=16122451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61182674A Pending JPS6340855A (en) | 1986-08-05 | 1986-08-05 | Detection for deterioration of oil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6340855A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009139211A1 (en) | 2008-05-13 | 2009-11-19 | 出光興産株式会社 | Device for evaluating degree of degradation of lubricating oil |
| CN103675241A (en) * | 2012-09-25 | 2014-03-26 | 西门子公司 | Method for determining ageing state of lubricant |
-
1986
- 1986-08-05 JP JP61182674A patent/JPS6340855A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009139211A1 (en) | 2008-05-13 | 2009-11-19 | 出光興産株式会社 | Device for evaluating degree of degradation of lubricating oil |
| JP2009276148A (en) * | 2008-05-13 | 2009-11-26 | Idemitsu Kosan Co Ltd | Device for evaluating degree of degradation of lubricating oil |
| EP2278319A1 (en) * | 2008-05-13 | 2011-01-26 | Idemitsu Kosan Co., Ltd. | Device for evaluating degree of degradation of lubricating oil |
| US8664966B2 (en) | 2008-05-13 | 2014-03-04 | Idemitsu Kosan Co., Ltd. | Device for evaluating degree of degradation of lubricating oil |
| EP2278319A4 (en) * | 2008-05-13 | 2014-06-11 | Idemitsu Kosan Co | Device for evaluating degree of degradation of lubricating oil |
| CN103675241A (en) * | 2012-09-25 | 2014-03-26 | 西门子公司 | Method for determining ageing state of lubricant |
| US9588097B2 (en) | 2012-09-25 | 2017-03-07 | Siemens Aktiengesellschaft | Method and apparatus for determining an ageing state of a lubricant |
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