JPS64455A - Gas in oil sensor - Google Patents
Gas in oil sensorInfo
- Publication number
- JPS64455A JPS64455A JP15618987A JP15618987A JPS64455A JP S64455 A JPS64455 A JP S64455A JP 15618987 A JP15618987 A JP 15618987A JP 15618987 A JP15618987 A JP 15618987A JP S64455 A JPS64455 A JP S64455A
- Authority
- JP
- Japan
- Prior art keywords
- film
- thin film
- gaseous hydrogen
- electrodes
- bag
- 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
Landscapes
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
Abstract
PURPOSE: To enable simple measurement by sealing a sensor body formed with a pair of electrodes on the surface of a thin film consisting of a metal oxide together with the dry air which is reduced in pressure into a bag made of a polyimide resin film and permeating gaseous hydrogen selectively through the film.
CONSTITUTION: The sensor body 4 is formed by providing the thin film 2 of the metal oxide on the surface of a substrate 1 consisting of an inorg. insulating material and forming a pair of the electrodes 3 on the surface of the thin film 2. The body 4 is then sealed together with the dry air which is reduced in pressure into the bag 5 made of the polyimide film. The bag 5 in which the body 4 is sealed is thereafter immersed into the insulating oil of the electrical equipment to be analyzed and the gaseous hydrogen is selectively permeated through the film to change the surface resistance of the thin film 2 according to the concn. of the gaseous hydrogen. The surface resistance is detected as the resistance between the electrodes 3, by which the concn. of the gaseous hydrogen is measured. The measurement is thus made by the simple operation.
COPYRIGHT: (C)1989,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62-156189A JPH01455A (en) | 1987-06-23 | Gas sensor in oil |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62-156189A JPH01455A (en) | 1987-06-23 | Gas sensor in oil |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS64455A true JPS64455A (en) | 1989-01-05 |
JPH01455A JPH01455A (en) | 1989-01-05 |
Family
ID=
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006003153A (en) * | 2004-06-16 | 2006-01-05 | Saginomiya Seisakusho Inc | Hydrogen gas sensing element, hydrogen gas sensor and hydrogen gas sensing method |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006003153A (en) * | 2004-06-16 | 2006-01-05 | Saginomiya Seisakusho Inc | Hydrogen gas sensing element, hydrogen gas sensor and hydrogen gas sensing method |
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