FR2237545A5 - - Google Patents

Info

Publication number
FR2237545A5
FR2237545A5 FR7324239A FR7324239A FR2237545A5 FR 2237545 A5 FR2237545 A5 FR 2237545A5 FR 7324239 A FR7324239 A FR 7324239A FR 7324239 A FR7324239 A FR 7324239A FR 2237545 A5 FR2237545 A5 FR 2237545A5
Authority
FR
France
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
Application number
FR7324239A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by National Research Development Corp UK filed Critical National Research Development Corp UK
Application granted granted Critical
Publication of FR2237545A5 publication Critical patent/FR2237545A5/fr
Expired legal-status Critical Current

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 By The Use Of Electric Means (AREA)
FR7324239A 1972-06-30 1973-07-02 Expired FR2237545A5 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3076272A GB1437075A (en) 1972-06-30 1972-06-30 Gas detectors

Publications (1)

Publication Number Publication Date
FR2237545A5 true FR2237545A5 (fr) 1975-02-07

Family

ID=10312753

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7324239A Expired FR2237545A5 (fr) 1972-06-30 1973-07-02

Country Status (3)

Country Link
DE (1) DE2333270A1 (fr)
FR (1) FR2237545A5 (fr)
GB (1) GB1437075A (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3946198A (en) * 1974-07-01 1976-03-23 Ford Motor Company Electrical control system for an exhaust gas sensor
CA1119084A (fr) * 1977-10-05 1982-03-02 Stanley R. Merchant Sonde de gaz d'echappement faite de matiere catalytique poreuse impregnee, a resistance variable, et methode d'impregnation connexe
AU5734580A (en) * 1979-04-20 1980-10-23 Ametek, Inc. Measuring combustibles in a gas
CA1164944A (fr) * 1980-01-02 1984-04-03 International Gas Detectors Limited Elements-sondes de gaz, et methode de fabrication connexe
CH673536A5 (fr) * 1986-03-04 1990-03-15 Ingold W Dr Ag
US5494826A (en) * 1994-04-18 1996-02-27 Gas Research Institute, Inc. Microcalorimeter sensor for the measurement of heat content of natural gas
US11543396B2 (en) * 2019-06-11 2023-01-03 Msa Technology, Llc Gas sensor with separate contaminant detection element
CN110988049A (zh) * 2019-12-10 2020-04-10 武汉微纳传感技术有限公司 一种催化燃烧式mems气体传感器及其工作方法
CN110988050A (zh) * 2019-12-10 2020-04-10 武汉微纳传感技术有限公司 一种带温度感测功能的mems气体传感器及其制备方法
CN110988051A (zh) * 2019-12-10 2020-04-10 武汉微纳传感技术有限公司 一种双模式mems气体传感器及其工作方法
CN111537664B (zh) * 2020-05-07 2022-12-20 江苏集萃智能集成电路设计技术研究所有限公司 催化式多气体传感系统

Also Published As

Publication number Publication date
DE2333270A1 (de) 1974-01-31
GB1437075A (en) 1976-05-26

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Legal Events

Date Code Title Description
ST Notification of lapse