GB1238773A - - Google Patents
Info
- Publication number
- GB1238773A GB1238773A GB1238773DA GB1238773A GB 1238773 A GB1238773 A GB 1238773A GB 1238773D A GB1238773D A GB 1238773DA GB 1238773 A GB1238773 A GB 1238773A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pointer
- bulb
- zero
- bridge
- measuring
- 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
Links
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract 6
- 239000000203 mixture Substances 0.000 abstract 2
- 239000004215 Carbon black (E152) Substances 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 229930195733 hydrocarbon Natural products 0.000 abstract 1
- 150000002430 hydrocarbons Chemical class 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
- 230000000007 visual effect Effects 0.000 abstract 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 Non-Biological Materials By The Use Of Chemical Means (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19681698207 DE1698207A1 (de) | 1968-03-13 | 1968-03-13 | Kohlenwasserstoff-Messgeraet,insbesondere Methan-Messgeraet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1238773A true GB1238773A (enExample) | 1971-07-07 |
Family
ID=5688044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1238773D Expired GB1238773A (enExample) | 1968-03-13 | 1969-03-11 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE729284A (enExample) |
| FR (1) | FR2003755A1 (enExample) |
| GB (1) | GB1238773A (enExample) |
-
1969
- 1969-02-28 FR FR6905545A patent/FR2003755A1/fr not_active Withdrawn
- 1969-03-03 BE BE729284D patent/BE729284A/xx unknown
- 1969-03-11 GB GB1238773D patent/GB1238773A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2003755A1 (enExample) | 1969-11-14 |
| BE729284A (enExample) | 1969-09-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |