FR2401419A1 - Detecteur de gaz combustible - Google Patents

Detecteur de gaz combustible

Info

Publication number
FR2401419A1
FR2401419A1 FR7825562A FR7825562A FR2401419A1 FR 2401419 A1 FR2401419 A1 FR 2401419A1 FR 7825562 A FR7825562 A FR 7825562A FR 7825562 A FR7825562 A FR 7825562A FR 2401419 A1 FR2401419 A1 FR 2401419A1
Authority
FR
France
Prior art keywords
combustible gas
gas detector
pellet
filament
powder
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.)
Granted
Application number
FR7825562A
Other languages
English (en)
Other versions
FR2401419B1 (fr
Inventor
Eric Jones
Rodney Philip Townsend
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.)
Teledyne UK Ltd
Original Assignee
English Electric Valve Co Ltd
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 English Electric Valve Co Ltd filed Critical English Electric Valve Co Ltd
Publication of FR2401419A1 publication Critical patent/FR2401419A1/fr
Application granted granted Critical
Publication of FR2401419B1 publication Critical patent/FR2401419B1/fr
Granted 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)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)

Abstract

L'invention a pour objet un détecteur de gaz combustible obtenu en enrobant un filament métallique 6 en platine dans une pastille 7. La pastille 7 est formée en comprimant une poudre à l'aide d'un moule formé d'un bloc 1 et d'un piston 4 présentant chacun un trou 3 respectivement 5 pour le passage du filament 6. La poudre est constituée d'un melange homogène de zéolite, d'un catalyseur et d'un matériau céramique inactif de support. Le détecteur trouve son application dans la surveillance des atmosphères polluées de gaz combustibles.
FR7825562A 1977-08-25 1978-08-25 Detecteur de gaz combustible Granted FR2401419A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB35806/77A GB1556339A (en) 1977-08-25 1977-08-25 Combustible gas detectors

Publications (2)

Publication Number Publication Date
FR2401419A1 true FR2401419A1 (fr) 1979-03-23
FR2401419B1 FR2401419B1 (fr) 1980-09-19

Family

ID=10381741

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7825562A Granted FR2401419A1 (fr) 1977-08-25 1978-08-25 Detecteur de gaz combustible

Country Status (4)

Country Link
US (1) US4246228A (fr)
DE (1) DE2750161A1 (fr)
FR (1) FR2401419A1 (fr)
GB (1) GB1556339A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2473179A1 (fr) * 1980-01-02 1981-07-10 Int Gas Detectors Ltd Elements detecteurs de gaz et procedes pour les fabriquer
FR2484689A1 (fr) * 1980-06-11 1981-12-18 Mine Safety Appliances Co Element electriquement chauffable pour instruments de detection de gaz, et son procede de fabrication
EP0062466A1 (fr) * 1981-04-04 1982-10-13 English Electric Valve Company Limited Détecteurs de gaz combustibles

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2083630B (en) * 1980-09-05 1984-01-18 Nat Res Dev Catalytic combustible gas sensors
EP0094863A1 (fr) * 1982-05-13 1983-11-23 The Bendix Corporation Capteur de gaz activé catalytiquement et immunisé contre les poisons du catalyseur
US4496249A (en) * 1982-09-23 1985-01-29 University Of Florida Method and apparatus for determining relative surface areas of a coated material on a substrate
GB2129134B (en) * 1982-10-13 1985-11-20 English Electric Valve Co Ltd Catalytic combustible-gas detectors
US4595670A (en) * 1983-11-10 1986-06-17 Exxon Research And Engineering Co. Zeolite catalyst
US4595668A (en) * 1983-11-10 1986-06-17 Exxon Research And Engineering Co. Bound zeolite catalyst
US4560585A (en) * 1983-12-23 1985-12-24 Rexnord Inc. Poison resistant combustible gas sensor
US4720421A (en) * 1983-12-23 1988-01-19 Rexnord Inc. Poison resistant combustible gas sensor
US5055266A (en) * 1984-03-02 1991-10-08 Arch Development Corporation Method for detecting toxic gases
JP2876793B2 (ja) * 1991-02-04 1999-03-31 トヨタ自動車株式会社 半導体型炭化水素センサ
US6395317B1 (en) 1999-02-11 2002-05-28 Mars Incorporated Process and apparatus for forming dual compartment pouches from a continuous web
US7041256B2 (en) * 2001-01-30 2006-05-09 Industrial Scientific Corporation Poison resistant combustible gas sensors and method for warning of poisoning
WO2003008928A2 (fr) * 2001-07-16 2003-01-30 Sensor Tech, Inc. Detecteur et procede associe d'analyse qualitative et quantitative de substances en phase gazeuse
DE10143517A1 (de) * 2001-09-05 2003-03-27 Hte Ag The High Throughput Exp Verfahren und Vorrichtung zur Analyse eines fluiden Mediums
US12479737B1 (en) * 2023-03-03 2025-11-25 Mainstream Engineering Corporation Process for fabricating wire-embedded zeolite structures with bare wire leads
US12548696B2 (en) * 2023-03-03 2026-02-10 Mainstream Engineering Corporation Wire-embedded zeolite structures with bare wire leads

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3200011A (en) * 1959-02-03 1965-08-10 Nat Res Dev Electrically heatable filaments
FR2287698A1 (fr) * 1974-10-09 1976-05-07 Dictaphone Corp Element resistif pour analyse de gaz et son procede de realisation

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3092799A (en) * 1958-02-18 1963-06-04 Nat Res Dev Apparatus for detecting combustible gases having an electrically conductive member enveloped in a refractory material
US3564474A (en) * 1968-06-04 1971-02-16 Nat Res Dev Electrically heatable elements
US3625756A (en) * 1969-01-21 1971-12-07 Naoyoshi Taguchi Method for making a gas-sensing element
GB1596623A (en) * 1976-12-13 1981-08-26 Nat Res Dev Catalytic gas detectors

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3200011A (en) * 1959-02-03 1965-08-10 Nat Res Dev Electrically heatable filaments
FR2287698A1 (fr) * 1974-10-09 1976-05-07 Dictaphone Corp Element resistif pour analyse de gaz et son procede de realisation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2473179A1 (fr) * 1980-01-02 1981-07-10 Int Gas Detectors Ltd Elements detecteurs de gaz et procedes pour les fabriquer
FR2484689A1 (fr) * 1980-06-11 1981-12-18 Mine Safety Appliances Co Element electriquement chauffable pour instruments de detection de gaz, et son procede de fabrication
EP0062466A1 (fr) * 1981-04-04 1982-10-13 English Electric Valve Company Limited Détecteurs de gaz combustibles

Also Published As

Publication number Publication date
DE2750161A1 (de) 1979-03-08
FR2401419B1 (fr) 1980-09-19
US4246228A (en) 1981-01-20
GB1556339A (en) 1979-11-21

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