CH579769A5 - - Google Patents
Info
- Publication number
- CH579769A5 CH579769A5 CH1670573A CH1670573A CH579769A5 CH 579769 A5 CH579769 A5 CH 579769A5 CH 1670573 A CH1670573 A CH 1670573A CH 1670573 A CH1670573 A CH 1670573A CH 579769 A5 CH579769 A5 CH 579769A5
- Authority
- CH
- Switzerland
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
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
- G08C19/02—Electric signal transmission systems in which the signal transmitted is magnitude of current or voltage
Landscapes
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biochemistry (AREA)
- Analytical Chemistry (AREA)
- Electrochemistry (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7242382A FR2208520A5 (US08177716-20120515-C00003.png) | 1972-11-29 | 1972-11-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH579769A5 true CH579769A5 (US08177716-20120515-C00003.png) | 1976-09-15 |
Family
ID=9107908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1670573A CH579769A5 (US08177716-20120515-C00003.png) | 1972-11-29 | 1973-11-28 |
Country Status (13)
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2408218C3 (de) * | 1974-02-21 | 1983-11-03 | Ehlen, Karl Josef, Dr., 5000 Köln | Schaltungsanordnung zum Nachweis von Gasen |
| ZA766200B (en) * | 1975-10-28 | 1978-05-30 | Consolidation Coal Co | Electrical circuitry for detecting a combustible mixture of gas in a mine atmosphere |
| EP2514641B1 (en) * | 2009-05-26 | 2014-07-16 | Toyota Jidosha Kabushiki Kaisha | A control apparatus, an on-vehicle device and a method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3239828A (en) * | 1962-07-27 | 1966-03-08 | Erdco Eng Corp | Combustible gas detector |
| US3517556A (en) * | 1967-05-02 | 1970-06-30 | Monsanto Co | Resistive-type temperature-to-current transducer |
| US3503261A (en) * | 1967-11-01 | 1970-03-31 | Fischer & Porter Co | Resistance to current converter |
| DE1951523B2 (de) * | 1969-10-13 | 1971-12-30 | Schoppe & Faeser Gmbh, 4950 Minden | Elektrischer messumformer nach dem zwei draht verfahren |
| US3764880A (en) * | 1972-05-08 | 1973-10-09 | Rosemount Inc | Two-wire current transmitter with isolated transducer circuit |
-
1972
- 1972-11-29 FR FR7242382A patent/FR2208520A5/fr not_active Expired
-
1973
- 1973-11-23 ZA ZA738944A patent/ZA738944B/xx unknown
- 1973-11-27 US US419371A patent/US3887335A/en not_active Expired - Lifetime
- 1973-11-27 NL NL7316202A patent/NL7316202A/xx unknown
- 1973-11-28 RO RO7376811A patent/RO81734A/ro unknown
- 1973-11-28 GB GB5520073A patent/GB1446087A/en not_active Expired
- 1973-11-28 CH CH1670573A patent/CH579769A5/xx not_active IP Right Cessation
- 1973-11-28 JP JP48132817A patent/JPS501759A/ja active Pending
- 1973-11-28 ES ES420912A patent/ES420912A1/es not_active Expired
- 1973-11-28 PL PL1973166888A patent/PL91248B1/pl unknown
- 1973-11-28 DD DD174993A patent/DD109277A5/xx unknown
- 1973-11-29 IT IT31862/73A patent/IT1002072B/it active
- 1973-11-29 DE DE2359595A patent/DE2359595A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| IT1002072B (it) | 1976-05-20 |
| DE2359595A1 (de) | 1974-06-12 |
| FR2208520A5 (US08177716-20120515-C00003.png) | 1974-06-21 |
| DD109277A5 (US08177716-20120515-C00003.png) | 1974-10-20 |
| US3887335A (en) | 1975-06-03 |
| ZA738944B (en) | 1974-11-27 |
| GB1446087A (en) | 1976-08-11 |
| ES420912A1 (es) | 1976-04-01 |
| JPS501759A (US08177716-20120515-C00003.png) | 1975-01-09 |
| NL7316202A (US08177716-20120515-C00003.png) | 1974-05-31 |
| PL91248B1 (US08177716-20120515-C00003.png) | 1977-02-28 |
| RO81734A (ro) | 1983-06-01 |
| RO81734B (ro) | 1983-05-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |