BE729021A - - Google Patents
Info
- Publication number
- BE729021A BE729021A BE729021DA BE729021A BE 729021 A BE729021 A BE 729021A BE 729021D A BE729021D A BE 729021DA BE 729021 A BE729021 A BE 729021A
- Authority
- BE
- Belgium
- Prior art keywords
- measuring
- concentration
- bridge circuit
- bridge
- coupled
- Prior art date
Links
- 239000007789 gas Substances 0.000 claims description 15
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 12
- 230000011664 signaling Effects 0.000 claims description 9
- 239000003245 coal Substances 0.000 claims description 5
- 238000004804 winding Methods 0.000 description 2
- 239000002775 capsule Substances 0.000 description 1
- 238000004320 controlled atmosphere Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005236 sound signal Effects 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
- G01N27/14—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)
- Sampling And Sample Adjustment (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE729021 | 1969-02-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE729021A true BE729021A (enrdf_load_stackoverflow) | 1969-08-27 |
Family
ID=3854357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE729021D BE729021A (enrdf_load_stackoverflow) | 1969-02-27 | 1969-02-27 |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE729021A (enrdf_load_stackoverflow) |
-
1969
- 1969-02-27 BE BE729021D patent/BE729021A/fr unknown
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