GB1259566A - - Google Patents

Info

Publication number
GB1259566A
GB1259566A GB1259566DA GB1259566A GB 1259566 A GB1259566 A GB 1259566A GB 1259566D A GB1259566D A GB 1259566DA GB 1259566 A GB1259566 A GB 1259566A
Authority
GB
United Kingdom
Prior art keywords
switch
detecting
resistance
metal oxide
reducing 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
Other languages
English (en)
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 filed Critical
Publication of GB1259566A publication Critical patent/GB1259566A/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

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)
  • Emergency Alarm Devices (AREA)
GB1259566D 1970-07-13 1970-07-13 Expired GB1259566A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3394970 1970-07-13

Publications (1)

Publication Number Publication Date
GB1259566A true GB1259566A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1972-01-05

Family

ID=10359468

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1259566D Expired GB1259566A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1970-07-13 1970-07-13

Country Status (1)

Country Link
GB (1) GB1259566A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4080564A (en) * 1975-10-02 1978-03-21 Matsushita Electric Industrial Co., Ltd. Humidity sensitive resistor device
EP1790978A1 (en) * 2005-11-23 2007-05-30 Therm-o-Disc Incorporated Temperature compensated vapor sensor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4080564A (en) * 1975-10-02 1978-03-21 Matsushita Electric Industrial Co., Ltd. Humidity sensitive resistor device
EP1790978A1 (en) * 2005-11-23 2007-05-30 Therm-o-Disc Incorporated Temperature compensated vapor sensor
US7265560B2 (en) 2005-11-23 2007-09-04 Therm-O-Disc, Incorporated Temperature compensated vapor sensor

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee