JPS57171252A - Gas component detector - Google Patents
Gas component detectorInfo
- Publication number
- JPS57171252A JPS57171252A JP5668581A JP5668581A JPS57171252A JP S57171252 A JPS57171252 A JP S57171252A JP 5668581 A JP5668581 A JP 5668581A JP 5668581 A JP5668581 A JP 5668581A JP S57171252 A JPS57171252 A JP S57171252A
- Authority
- JP
- Japan
- Prior art keywords
- insulating bushing
- forsterite
- electrode
- platinum
- thermal expansion
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
Abstract
PURPOSE:To save use of components with an improved durability of an electrode wire and a less diameter of a costly platinum electrode by employing a forsterite ceramic composition as insulating bushing with a thermal expansion coefficient remarkably high as compared to an alumina ceramic. CONSTITUTION:A gas responsive element 1 made of a semiconductor of a metal oxide indicating an electric resistance value according to gas components to be detected is set on one end of an insulating bushing 3. A pair of electrode wires 2a and 2a made of platinum or a platinum alloy is buried in the gas responsive element 1 with one end thereof projected. Drawing lead wires 2b and 2b made of Ni separately connected to these electrode wires are inserted through through holes 3a and 3a on the insulating bushing 3 and securely bonded with a heat resistant adhesive 4. The insulating bushing 3 is made up of a forsterite ceramic (2MgO-SiO2) with a thermal expansion coefficient of 9X10<-6>/ deg.C or more or a magnetic composition mainly composed of forsterite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5668581A JPS57171252A (en) | 1981-04-15 | 1981-04-15 | Gas component detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5668581A JPS57171252A (en) | 1981-04-15 | 1981-04-15 | Gas component detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57171252A true JPS57171252A (en) | 1982-10-21 |
Family
ID=13034286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5668581A Pending JPS57171252A (en) | 1981-04-15 | 1981-04-15 | Gas component detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57171252A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112388112A (en) * | 2020-11-06 | 2021-02-23 | 昆山爱米特激光科技有限公司 | Automatic welding equipment for platinum wire drawing bushing and manufacturing process for platinum wire drawing bushing |
-
1981
- 1981-04-15 JP JP5668581A patent/JPS57171252A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112388112A (en) * | 2020-11-06 | 2021-02-23 | 昆山爱米特激光科技有限公司 | Automatic welding equipment for platinum wire drawing bushing and manufacturing process for platinum wire drawing bushing |
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