DE2748440A1 - Messeinrichtung zur bestimmung der menge der brennbaren gase in der luft - Google Patents
Messeinrichtung zur bestimmung der menge der brennbaren gase in der luftInfo
- Publication number
- DE2748440A1 DE2748440A1 DE19772748440 DE2748440A DE2748440A1 DE 2748440 A1 DE2748440 A1 DE 2748440A1 DE 19772748440 DE19772748440 DE 19772748440 DE 2748440 A DE2748440 A DE 2748440A DE 2748440 A1 DE2748440 A1 DE 2748440A1
- Authority
- DE
- Germany
- Prior art keywords
- filament
- air
- catalytic
- measuring device
- control circuit
- 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
- G01N27/14—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)
- Sampling And Sample Adjustment (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HU76ME2026A HU173759B (hu) | 1976-10-27 | 1976-10-27 | Izmeritel'noe ustrojstvo dlja opredelenija kolichestva gazovogo gorjuchego v vozduhe |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2748440A1 true DE2748440A1 (de) | 1978-05-11 |
Family
ID=10999420
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19772748440 Pending DE2748440A1 (de) | 1976-10-27 | 1977-10-26 | Messeinrichtung zur bestimmung der menge der brennbaren gase in der luft |
Country Status (8)
Country | Link |
---|---|
DD (1) | DD131969A1 (fi) |
DE (1) | DE2748440A1 (fi) |
FI (1) | FI773183A (fi) |
FR (1) | FR2369561A1 (fi) |
HU (1) | HU173759B (fi) |
NO (1) | NO773652L (fi) |
PL (1) | PL201782A1 (fi) |
SE (1) | SE7711987L (fi) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL8403222A (nl) * | 1984-10-23 | 1986-05-16 | Nedap Nv | Methode ter vermindering van ongewenste echo's in ultrasone stroomsnelheidsmeters. |
-
1976
- 1976-10-27 HU HU76ME2026A patent/HU173759B/hu unknown
-
1977
- 1977-10-25 SE SE7711987A patent/SE7711987L/xx unknown
- 1977-10-25 FI FI773183A patent/FI773183A/fi not_active Application Discontinuation
- 1977-10-25 DD DD7700201685A patent/DD131969A1/xx unknown
- 1977-10-26 NO NO773652A patent/NO773652L/no unknown
- 1977-10-26 DE DE19772748440 patent/DE2748440A1/de active Pending
- 1977-10-27 PL PL20178277A patent/PL201782A1/xx unknown
- 1977-10-27 FR FR7732504A patent/FR2369561A1/fr not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
PL201782A1 (pl) | 1978-06-05 |
NO773652L (no) | 1978-04-28 |
FI773183A (fi) | 1978-04-28 |
HU173759B (hu) | 1979-08-28 |
DD131969A1 (de) | 1978-08-09 |
SE7711987L (sv) | 1978-04-28 |
FR2369561A1 (fr) | 1978-05-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OHJ | Non-payment of the annual fee |