GB2043913B - Gas detector - Google Patents

Gas detector

Info

Publication number
GB2043913B
GB2043913B GB8002818A GB8002818A GB2043913B GB 2043913 B GB2043913 B GB 2043913B GB 8002818 A GB8002818 A GB 8002818A GB 8002818 A GB8002818 A GB 8002818A GB 2043913 B GB2043913 B GB 2043913B
Authority
GB
United Kingdom
Prior art keywords
gas detector
detector
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
Application number
GB8002818A
Other versions
GB2043913A (en
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.)
EMI Ltd
Original Assignee
EMI 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 EMI Ltd filed Critical EMI Ltd
Publication of GB2043913A publication Critical patent/GB2043913A/en
Application granted granted Critical
Publication of GB2043913B publication Critical patent/GB2043913B/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
    • G01N27/122—Circuits particularly adapted therefor, e.g. linearising circuits
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/04—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having negative temperature coefficient
    • H01C7/042—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having negative temperature coefficient mainly consisting of inorganic non-metallic substances
    • H01C7/043—Oxides or oxidic compounds
GB8002818A 1979-02-15 1980-01-28 Gas detector Expired GB2043913B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7905469 1979-02-15
GB7905470 1979-02-15

Publications (2)

Publication Number Publication Date
GB2043913A GB2043913A (en) 1980-10-08
GB2043913B true GB2043913B (en) 1983-01-26

Family

ID=26270591

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8002818A Expired GB2043913B (en) 1979-02-15 1980-01-28 Gas detector

Country Status (2)

Country Link
DE (1) DE3005528A1 (en)
GB (1) GB2043913B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0102067B1 (en) * 1982-08-27 1988-08-17 Kabushiki Kaisha Toshiba Co gas detecting device and circuit for driving the same
RU2159931C1 (en) * 2000-04-14 2000-11-27 Кутьев Анатолий Анатольевич Procedure for selective determination of concentration of deleterious impurities in gases and gear for its realization
JP4056987B2 (en) 2004-04-28 2008-03-05 アルプス電気株式会社 Hydrogen sensor and hydrogen detection method
DE102008028682A1 (en) * 2008-06-17 2010-02-25 Airbus Deutschland Gmbh Method for measuring gas concentrations by means of a metal oxide gas sensor, sensor device for carrying out the method and use thereof

Also Published As

Publication number Publication date
DE3005528A1 (en) 1980-08-28
GB2043913A (en) 1980-10-08

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee