JPS57160053A - Manufacture of gas sensing element - Google Patents
Manufacture of gas sensing elementInfo
- Publication number
- JPS57160053A JPS57160053A JP4585681A JP4585681A JPS57160053A JP S57160053 A JPS57160053 A JP S57160053A JP 4585681 A JP4585681 A JP 4585681A JP 4585681 A JP4585681 A JP 4585681A JP S57160053 A JPS57160053 A JP S57160053A
- Authority
- JP
- Japan
- Prior art keywords
- powders
- cylinder
- combustible gas
- sensitive element
- gas sensitive
- 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 provide a combustible gas sensitive element with high sensitivity by mixing in wet state and forming powders of raw material ingredient that contain indium oxide, tin oxide and noble metal oxides as effective ingredients and then sintering the mixture. CONSTITUTION:In the manufacture of a combustible gas sensitive element that contains as effective ingredients 29.4 wt% of In2O3, 63.6wt% of SnO2, and 2.0wt% of an oxide of noble metal such as PdO to 1 gram in total of respective raw material powders ethylene glycol and other liquid over 2cc are added, and the powders are mixed wet. Next the mixture is dried. A specified amount (about 20mg) of dried powders is taken and they are together compressed to form a cylinder of diameter 2mm., and thickness 2mm. with a platinum wire buried in it. Next, the cylinder is sintered by heating it to 600-800 deg.C. The sintered cylinder is provided with a heater and anti-detonation net to complete a combustible gas sensitive element. In this way an element with high sensitivity and small variation in characteristics among elements is obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4585681A JPS57160053A (en) | 1981-03-27 | 1981-03-27 | Manufacture of gas sensing element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4585681A JPS57160053A (en) | 1981-03-27 | 1981-03-27 | Manufacture of gas sensing element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57160053A true JPS57160053A (en) | 1982-10-02 |
Family
ID=12730843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4585681A Pending JPS57160053A (en) | 1981-03-27 | 1981-03-27 | Manufacture of gas sensing element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57160053A (en) |
-
1981
- 1981-03-27 JP JP4585681A patent/JPS57160053A/en active Pending
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