CA915458A - Method and apparatus for identifying gases - Google Patents

Method and apparatus for identifying gases

Info

Publication number
CA915458A
CA915458A CA915458A CA915458DA CA915458A CA 915458 A CA915458 A CA 915458A CA 915458 A CA915458 A CA 915458A CA 915458D A CA915458D A CA 915458DA CA 915458 A CA915458 A CA 915458A
Authority
CA
Canada
Prior art keywords
identifying gases
gases
identifying
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
Application number
CA915458A
Inventor
H. Wright Robert
E. Cumming John
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.)
British Columbia Research Council
Original Assignee
British Columbia Research Council
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 British Columbia Research Council filed Critical British Columbia Research Council
Application granted granted Critical
Publication of CA915458A publication Critical patent/CA915458A/en
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
    • G01N27/12—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
    • G01N27/125—Composition of the body, e.g. the composition of its sensitive layer
    • G01N27/126—Composition of the body, e.g. the composition of its sensitive layer comprising organic polymers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
    • G01N33/0031—General constructional details of gas analysers, e.g. portable test equipment concerning the detector comprising two or more sensors, e.g. a sensor array
CA915458A 1970-07-06 1970-07-06 Method and apparatus for identifying gases Expired CA915458A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA87293 1970-07-06

Publications (1)

Publication Number Publication Date
CA915458A true CA915458A (en) 1972-11-28

Family

ID=4087137

Family Applications (1)

Application Number Title Priority Date Filing Date
CA915458A Expired CA915458A (en) 1970-07-06 1970-07-06 Method and apparatus for identifying gases

Country Status (1)

Country Link
CA (1) CA915458A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2433179A1 (en) * 1974-07-10 1976-01-29 Nohmi Bosai Kogyo Co Ltd Detector for gas mixts. has two semiconductor sensing elements - giving different selective responses to different gas constituents
FR2383440A1 (en) * 1977-03-11 1978-10-06 Frey Yvan PROCESS FOR PREPARING A DETECTION HEAD
EP0022028A1 (en) * 1979-06-29 1981-01-07 COMPAGNIE CENTRALE SICLI (Société Anonyme) Method to detect and to analyse gases, in particular to prevent fire
FR2560684A1 (en) * 1984-03-02 1985-09-06 Us Energy METHOD AND DEVICE FOR DETECTING TOXIC GASES
US4818348A (en) * 1987-05-26 1989-04-04 Transducer Research, Inc. Method and apparatus for identifying and quantifying simple and complex chemicals
US5457333A (en) * 1990-11-30 1995-10-10 New Cosmos Electric Co., Ltd. Gas sensor used in leak detectors or alarm units
WO1996007901A1 (en) * 1994-09-06 1996-03-14 Mastiff Electronic Systems Ltd Odour sensor

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2433179A1 (en) * 1974-07-10 1976-01-29 Nohmi Bosai Kogyo Co Ltd Detector for gas mixts. has two semiconductor sensing elements - giving different selective responses to different gas constituents
FR2383440A1 (en) * 1977-03-11 1978-10-06 Frey Yvan PROCESS FOR PREPARING A DETECTION HEAD
EP0022028A1 (en) * 1979-06-29 1981-01-07 COMPAGNIE CENTRALE SICLI (Société Anonyme) Method to detect and to analyse gases, in particular to prevent fire
FR2460480A1 (en) * 1979-06-29 1981-01-23 Sicli Cie Cle METHOD FOR DETECTING AND ANALYZING GAS, IN PARTICULAR FOR FIRE PREVENTION
FR2560684A1 (en) * 1984-03-02 1985-09-06 Us Energy METHOD AND DEVICE FOR DETECTING TOXIC GASES
US4670405A (en) * 1984-03-02 1987-06-02 The United States Of America As Represented By The United States Department Of Energy Sensor array for toxic gas detection
US4818348A (en) * 1987-05-26 1989-04-04 Transducer Research, Inc. Method and apparatus for identifying and quantifying simple and complex chemicals
US5457333A (en) * 1990-11-30 1995-10-10 New Cosmos Electric Co., Ltd. Gas sensor used in leak detectors or alarm units
WO1996007901A1 (en) * 1994-09-06 1996-03-14 Mastiff Electronic Systems Ltd Odour sensor

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