GB1427515A - Explosive gas detectors - Google Patents
Explosive gas detectorsInfo
- Publication number
- GB1427515A GB1427515A GB1049272A GB1049272A GB1427515A GB 1427515 A GB1427515 A GB 1427515A GB 1049272 A GB1049272 A GB 1049272A GB 1049272 A GB1049272 A GB 1049272A GB 1427515 A GB1427515 A GB 1427515A
- Authority
- GB
- United Kingdom
- Prior art keywords
- catalyst
- reaction chamber
- producing
- temperature characteristic
- gas
- 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
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 Using Thermal Means (AREA)
Abstract
1427515 Measuring gas concentration electrically TRADE AND INDUSTRY SECRETARY OF STATE FOR 30 May 1973 [7 March 1972] 10492/72 Heading G1N An explosive gas detector has a reaction chamber 10 containing a catalyst pellet 14, a valve 12 providing a means for admitting a discrete sample of a gas mixture into the reaction chamber and retaining it sealed therein for a sufficient time to determine the height of the maximum of the temperature characteristic of the catalyst body and also the rate of decrease of the temperature characteristic see Fig. 4 whereby it acts on the catalyst to a sufficient extent to enable the entire effect it is capable of producing in the catalyst pellet to be determined and an integrating measuring means for determining the entire effect and producing an integrated output signal which gives a measure of the total heat of oxidation of the combustible gas in the discrete sample. In an alternative embodiment Fig. 3 (not shown) inlet and exhaust apertures and valves are provided. The temperature is sensed by a thermistor or thermocouple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1049272A GB1427515A (en) | 1972-03-07 | 1972-03-07 | Explosive gas detectors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1049272A GB1427515A (en) | 1972-03-07 | 1972-03-07 | Explosive gas detectors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1427515A true GB1427515A (en) | 1976-03-10 |
Family
ID=9968853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1049272A Expired GB1427515A (en) | 1972-03-07 | 1972-03-07 | Explosive gas detectors |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1427515A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2164449A (en) * | 1984-08-23 | 1986-03-19 | Johnson Matthey Plc | Monitoring temperature induced deterioration of stored articles |
| EP0177629A1 (en) * | 1983-04-14 | 1986-04-16 | Leybold Aktiengesellschaft | Method and apparatus for measuring the difference in concentration of paramagnetic components in gases |
| WO1996002826A1 (en) * | 1994-07-19 | 1996-02-01 | European Atomic Energy Community (Euratom) | Device and method for measuring reactive components in gases |
| WO1998018001A2 (en) * | 1996-10-22 | 1998-04-30 | Orbisphere Laboratories Neuchatel S.A. | Combustibility monitor and monitoring method |
| GB2435099A (en) * | 2006-02-14 | 2007-08-15 | Autoliv Dev | Means for monitoring accuracy of measurements of gas contaminants |
| CN1333246C (en) * | 2000-06-05 | 2007-08-22 | 松下电器产业株式会社 | Gas concentration sensor, hydrogen purification unit using this and cell system |
| CN113791122A (en) * | 2021-09-16 | 2021-12-14 | 国网江苏省电力有限公司建设分公司 | Device and method for measuring resistivity of tower pile foundation grounding leakage flow packing filler |
-
1972
- 1972-03-07 GB GB1049272A patent/GB1427515A/en not_active Expired
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0177629A1 (en) * | 1983-04-14 | 1986-04-16 | Leybold Aktiengesellschaft | Method and apparatus for measuring the difference in concentration of paramagnetic components in gases |
| GB2164449A (en) * | 1984-08-23 | 1986-03-19 | Johnson Matthey Plc | Monitoring temperature induced deterioration of stored articles |
| WO1996002826A1 (en) * | 1994-07-19 | 1996-02-01 | European Atomic Energy Community (Euratom) | Device and method for measuring reactive components in gases |
| WO1998018001A2 (en) * | 1996-10-22 | 1998-04-30 | Orbisphere Laboratories Neuchatel S.A. | Combustibility monitor and monitoring method |
| WO1998018001A3 (en) * | 1996-10-22 | 2002-10-10 | Orbisphere Lab | Combustibility monitor and monitoring method |
| CN1333246C (en) * | 2000-06-05 | 2007-08-22 | 松下电器产业株式会社 | Gas concentration sensor, hydrogen purification unit using this and cell system |
| US7357015B2 (en) | 2000-06-05 | 2008-04-15 | Matsushita Electric Industrial Co., Ltd. | Gas concentration sensor, hydrogen purification unit using this and fuel cell system |
| GB2435099A (en) * | 2006-02-14 | 2007-08-15 | Autoliv Dev | Means for monitoring accuracy of measurements of gas contaminants |
| CN113791122A (en) * | 2021-09-16 | 2021-12-14 | 国网江苏省电力有限公司建设分公司 | Device and method for measuring resistivity of tower pile foundation grounding leakage flow packing filler |
| CN113791122B (en) * | 2021-09-16 | 2023-08-25 | 国网江苏省电力有限公司建设分公司 | Device and method for measuring resistivity of pile foundation grounding leakage flow packet filler of tower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |