FR2670291B1 - Dispositif de controle de temperature pour element sensible d'un detecteur de gaz combustible a filaments. - Google Patents
Dispositif de controle de temperature pour element sensible d'un detecteur de gaz combustible a filaments.Info
- Publication number
- FR2670291B1 FR2670291B1 FR9015734A FR9015734A FR2670291B1 FR 2670291 B1 FR2670291 B1 FR 2670291B1 FR 9015734 A FR9015734 A FR 9015734A FR 9015734 A FR9015734 A FR 9015734A FR 2670291 B1 FR2670291 B1 FR 2670291B1
- Authority
- FR
- France
- Prior art keywords
- filament
- monitoring device
- fuel gas
- sensitive element
- temperature monitoring
- 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 - Lifetime
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
- G01N27/14—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature
- G01N27/16—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature caused by burning or catalytic oxidation of surrounding material to be tested, e.g. of gas
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 Electric Means (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9015734A FR2670291B1 (fr) | 1990-12-07 | 1990-12-07 | Dispositif de controle de temperature pour element sensible d'un detecteur de gaz combustible a filaments. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9015734A FR2670291B1 (fr) | 1990-12-07 | 1990-12-07 | Dispositif de controle de temperature pour element sensible d'un detecteur de gaz combustible a filaments. |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2670291A1 FR2670291A1 (fr) | 1992-06-12 |
FR2670291B1 true FR2670291B1 (fr) | 1994-11-04 |
Family
ID=9403283
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9015734A Expired - Lifetime FR2670291B1 (fr) | 1990-12-07 | 1990-12-07 | Dispositif de controle de temperature pour element sensible d'un detecteur de gaz combustible a filaments. |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2670291B1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4221922C1 (de) * | 1992-07-03 | 1994-01-13 | Bosch Gmbh Robert | Wärmetönungssensor |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1773731B2 (de) * | 1968-06-28 | 1973-07-19 | Geraet zur messung der konzentration brennbarer gase und daempfe | |
US4258002A (en) * | 1978-03-27 | 1981-03-24 | Barr Thomas A | Explosive gas detector |
AU5734580A (en) * | 1979-04-20 | 1980-10-23 | Ametek, Inc. | Measuring combustibles in a gas |
GB2091882B (en) * | 1981-01-26 | 1985-05-01 | Nat Res Dev | Electrical catalytic gas detection systems |
US4533520A (en) * | 1984-07-02 | 1985-08-06 | Mine Safety Appliances Company | Circuit for constant temperature operation of a catalytic combustible gas detector |
US4818977A (en) * | 1987-11-03 | 1989-04-04 | Mine Safety Appliances Company | Combustible gas detector having temperature stabilization capability |
DE8901861U1 (fr) * | 1989-02-17 | 1989-04-06 | Woelke, Werner, 4300 Essen, De |
-
1990
- 1990-12-07 FR FR9015734A patent/FR2670291B1/fr not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FR2670291A1 (fr) | 1992-06-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TP | Transmission of property | ||
TP | Transmission of property |