JPH0410984B2 - - Google Patents
Info
- Publication number
- JPH0410984B2 JPH0410984B2 JP3833685A JP3833685A JPH0410984B2 JP H0410984 B2 JPH0410984 B2 JP H0410984B2 JP 3833685 A JP3833685 A JP 3833685A JP 3833685 A JP3833685 A JP 3833685A JP H0410984 B2 JPH0410984 B2 JP H0410984B2
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- circuit
- transistor
- resistor
- gas
- 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
Links
- 238000001514 detection method Methods 0.000 claims description 27
- 239000003344 environmental pollutant Substances 0.000 claims description 3
- 231100000719 pollutant Toxicity 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 claims description 2
- 239000003990 capacitor Substances 0.000 description 18
- 238000010586 diagram Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
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
- G01N27/122—Circuits particularly adapted therefor, e.g. linearising circuits
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)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3833685A JPS61196150A (ja) | 1985-02-27 | 1985-02-27 | ガス感知器 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3833685A JPS61196150A (ja) | 1985-02-27 | 1985-02-27 | ガス感知器 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61196150A JPS61196150A (ja) | 1986-08-30 |
| JPH0410984B2 true JPH0410984B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1992-02-27 |
Family
ID=12522437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3833685A Granted JPS61196150A (ja) | 1985-02-27 | 1985-02-27 | ガス感知器 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61196150A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
-
1985
- 1985-02-27 JP JP3833685A patent/JPS61196150A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61196150A (ja) | 1986-08-30 |