GB2075195B - Gas sensors - Google Patents

Gas sensors

Info

Publication number
GB2075195B
GB2075195B GB8014194A GB8014194A GB2075195B GB 2075195 B GB2075195 B GB 2075195B GB 8014194 A GB8014194 A GB 8014194A GB 8014194 A GB8014194 A GB 8014194A GB 2075195 B GB2075195 B GB 2075195B
Authority
GB
United Kingdom
Prior art keywords
gas sensors
sensors
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
GB8014194A
Other versions
GB2075195A (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
Priority to GB8014194A priority Critical patent/GB2075195B/en
Publication of GB2075195A publication Critical patent/GB2075195A/en
Application granted granted Critical
Publication of GB2075195B publication Critical patent/GB2075195B/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
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/403—Cells and electrode assemblies
    • G01N27/414—Ion-sensitive or chemical field-effect transistors, i.e. ISFETS or CHEMFETS
    • G01N27/4141—Ion-sensitive or chemical field-effect transistors, i.e. ISFETS or CHEMFETS specially adapted for gases
    • 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
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/403—Cells and electrode assemblies
    • G01N27/414—Ion-sensitive or chemical field-effect transistors, i.e. ISFETS or CHEMFETS
    • G01N27/4148—Integrated circuits therefor, e.g. fabricated by CMOS processing
GB8014194A 1980-04-30 1980-04-30 Gas sensors Expired GB2075195B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8014194A GB2075195B (en) 1980-04-30 1980-04-30 Gas sensors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8014194A GB2075195B (en) 1980-04-30 1980-04-30 Gas sensors

Publications (2)

Publication Number Publication Date
GB2075195A GB2075195A (en) 1981-11-11
GB2075195B true GB2075195B (en) 1984-05-23

Family

ID=10513087

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8014194A Expired GB2075195B (en) 1980-04-30 1980-04-30 Gas sensors

Country Status (1)

Country Link
GB (1) GB2075195B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60203811A (en) * 1984-03-28 1985-10-15 Sharp Corp Detector
US4533520A (en) * 1984-07-02 1985-08-06 Mine Safety Appliances Company Circuit for constant temperature operation of a catalytic combustible gas detector
EP0231231B1 (en) * 1985-07-19 1990-09-19 Hölter, Heinz, Dipl.-Ing. Process for detecting toxic matter in air which enters a cabin or similar enclosure where persons are present
US4730479A (en) * 1986-06-23 1988-03-15 The Standard Oil Company Temperature and humidity compensation for gas detection apparatus
EP0628812A1 (en) * 1993-06-07 1994-12-14 Chrompack International B.V. System for temperature measurement and control using the conductivity of a component
GB2298285B (en) * 1995-02-23 1998-06-10 Ei Technology Limited A carbon monoxide alarm device

Also Published As

Publication number Publication date
GB2075195A (en) 1981-11-11

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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