FR2400705A1 - Element detecteur de gaz - Google Patents

Element detecteur de gaz

Info

Publication number
FR2400705A1
FR2400705A1 FR7824213A FR7824213A FR2400705A1 FR 2400705 A1 FR2400705 A1 FR 2400705A1 FR 7824213 A FR7824213 A FR 7824213A FR 7824213 A FR7824213 A FR 7824213A FR 2400705 A1 FR2400705 A1 FR 2400705A1
Authority
FR
France
Prior art keywords
gas detector
detector element
semiconductor oxide
vapors
mist
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
FR7824213A
Other languages
English (en)
Other versions
FR2400705B3 (fr
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of FR2400705A1 publication Critical patent/FR2400705A1/fr
Application granted granted Critical
Publication of FR2400705B3 publication Critical patent/FR2400705B3/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
    • G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid

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 Fluid Adsorption Or Reactions (AREA)

Abstract

Elément détecteur de gaz pour déceler des graisses et substances odorantes dans des buées et comportant un oxyde semiconducteur chauffé, dont la résistance varie en présence de gaz et vapeurs. L'oxyde semiconducteur 4 est totalement ou partiellement recouvert par une couche catalytique poreuse 6.
FR7824213A 1977-08-19 1978-08-18 Element detecteur de gaz Granted FR2400705A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772737385 DE2737385A1 (de) 1977-08-19 1977-08-19 Gasspuerelement zum nachweis von fetten und geruchsstoffen in duensten

Publications (2)

Publication Number Publication Date
FR2400705A1 true FR2400705A1 (fr) 1979-03-16
FR2400705B3 FR2400705B3 (fr) 1981-05-29

Family

ID=6016772

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7824213A Granted FR2400705A1 (fr) 1977-08-19 1978-08-18 Element detecteur de gaz

Country Status (4)

Country Link
DE (1) DE2737385A1 (fr)
FR (1) FR2400705A1 (fr)
GB (1) GB2002907A (fr)
SE (1) SE7808655L (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2484646A1 (fr) * 1980-05-21 1981-12-18 Siemens Ag Detecteur de gaz a couche mince et a semiconducteurs a element de chauffage integre

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56151349A (en) * 1980-04-25 1981-11-24 Sharp Corp Aging method for sno2 semiconductor gas sensor
DE3118936C2 (de) * 1981-05-13 1985-07-04 Drägerwerk AG, 2400 Lübeck Verwendung eines Meßverfahrens für gas- oder dampfförmige Medien und Vorrichtung hierzu
GB2142147A (en) * 1983-06-24 1985-01-09 Standard Telephones Cables Ltd Gas sensor
JPS60203811A (ja) * 1984-03-28 1985-10-15 Sharp Corp 検出装置
US4911892A (en) * 1987-02-24 1990-03-27 American Intell-Sensors Corporation Apparatus for simultaneous detection of target gases
FR2692047B1 (fr) * 1992-06-04 1995-08-04 Gaz De France Capteur de detection selective de gaz et dispositif pour sa mise en óoeuvre.
US5345213A (en) * 1992-10-26 1994-09-06 The United States Of America, As Represented By The Secretary Of Commerce Temperature-controlled, micromachined arrays for chemical sensor fabrication and operation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2484646A1 (fr) * 1980-05-21 1981-12-18 Siemens Ag Detecteur de gaz a couche mince et a semiconducteurs a element de chauffage integre

Also Published As

Publication number Publication date
FR2400705B3 (fr) 1981-05-29
SE7808655L (sv) 1979-02-20
DE2737385A1 (de) 1979-03-22
GB2002907A (en) 1979-02-28

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Legal Events

Date Code Title Description
ST Notification of lapse