DE2239270B2 - Gasspürgerät - Google Patents
GasspürgerätInfo
- Publication number
- DE2239270B2 DE2239270B2 DE19722239270 DE2239270A DE2239270B2 DE 2239270 B2 DE2239270 B2 DE 2239270B2 DE 19722239270 DE19722239270 DE 19722239270 DE 2239270 A DE2239270 A DE 2239270A DE 2239270 B2 DE2239270 B2 DE 2239270B2
- Authority
- DE
- Germany
- Prior art keywords
- gas
- gas detection
- voltage
- detection element
- resistance
- 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
- 238000001514 detection method Methods 0.000 claims description 52
- 239000004065 semiconductor Substances 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 9
- 239000007789 gas Substances 0.000 description 97
- 238000004804 winding Methods 0.000 description 10
- 230000007257 malfunction Effects 0.000 description 8
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000003795 desorption Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000004880 explosion Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 239000001294 propane Substances 0.000 description 3
- 230000011664 signaling Effects 0.000 description 3
- 230000035943 smell Effects 0.000 description 3
- 230000020169 heat generation Effects 0.000 description 2
- 239000003949 liquefied natural gas Substances 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000009966 trimming 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)
- Emergency Alarm Devices (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19722239270 DE2239270B2 (de) | 1972-08-09 | 1972-08-09 | Gasspürgerät |
| FR7228942A FR2196079A5 (enExample) | 1972-08-09 | 1972-08-10 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19722239270 DE2239270B2 (de) | 1972-08-09 | 1972-08-09 | Gasspürgerät |
| FR7228942A FR2196079A5 (enExample) | 1972-08-09 | 1972-08-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2239270A1 DE2239270A1 (de) | 1974-03-07 |
| DE2239270B2 true DE2239270B2 (de) | 1975-07-24 |
Family
ID=25763681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19722239270 Pending DE2239270B2 (de) | 1972-08-09 | 1972-08-09 | Gasspürgerät |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE2239270B2 (enExample) |
| FR (1) | FR2196079A5 (enExample) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2433179C3 (de) * | 1974-07-10 | 1986-03-27 | Nohmi Bosai Kogyo Co., Ltd., Tokio/Tokyo | Gasdetektor zum selektiven Nachweis einer Komponente eines bestimmte Gase enthaltenden Gemischs |
| DE3807603C2 (de) * | 1988-03-08 | 1994-01-20 | Fraunhofer Ges Forschung | Halbleitender Gassensor |
-
1972
- 1972-08-09 DE DE19722239270 patent/DE2239270B2/de active Pending
- 1972-08-10 FR FR7228942A patent/FR2196079A5/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2239270A1 (de) | 1974-03-07 |
| FR2196079A5 (enExample) | 1974-03-08 |
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