GB1280809A - Gas detecting element and method of making same - Google Patents

Gas detecting element and method of making same

Info

Publication number
GB1280809A
GB1280809A GB55305/70A GB5530570A GB1280809A GB 1280809 A GB1280809 A GB 1280809A GB 55305/70 A GB55305/70 A GB 55305/70A GB 5530570 A GB5530570 A GB 5530570A GB 1280809 A GB1280809 A GB 1280809A
Authority
GB
United Kingdom
Prior art keywords
gas detecting
semi
silica
detecting element
making same
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
GB55305/70A
Inventor
Naoyoshi Taguchi
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1280809A publication Critical patent/GB1280809A/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

Abstract

1280809 Detecting gases N TAGUCHI 20 Nov 1970 [19 Dec 1969] 55305/70 Heading G1N [Also in Division H1] In a metal oxide semi-conductor gas detecting device, the semi-conductor material has silica or silica gel added thereto to increase sensitivity. The semi-conductor material is dipped in or kneaded with a solution containing a silicon compound, e.g. silicate hydrosol, alkyl silicide, alkyl silicate or silanol, and the product is heated, oxidized or hydrolized to form the silica or silica gel.
GB55305/70A 1969-12-19 1970-11-20 Gas detecting element and method of making same Expired GB1280809A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP44102827A JPS5023317B1 (en) 1969-12-19 1969-12-19

Publications (1)

Publication Number Publication Date
GB1280809A true GB1280809A (en) 1972-07-05

Family

ID=14337836

Family Applications (1)

Application Number Title Priority Date Filing Date
GB55305/70A Expired GB1280809A (en) 1969-12-19 1970-11-20 Gas detecting element and method of making same

Country Status (4)

Country Link
US (1) US3644795A (en)
JP (1) JPS5023317B1 (en)
FR (1) FR2073827A5 (en)
GB (1) GB1280809A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4931851A (en) * 1986-03-12 1990-06-05 Thorn Emi Plc Gas sensitive device
US5427740A (en) * 1991-04-05 1995-06-27 British Gas Plc Tin oxide gas sensors
US5629474A (en) * 1993-03-30 1997-05-13 Keele University Production of a sensor for carbon monoxide or water vapor including a semi conductor metallic oxide, catalyst, and rheological agent
US5767388A (en) * 1995-04-26 1998-06-16 Siemens Aktiengesellschaft Methane sensor and method for operating a sensor

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5317440B2 (en) * 1973-10-19 1978-06-08
US3970431A (en) * 1974-01-23 1976-07-20 Stanford Research Institute Carbon monoxide gas detector
US3955268A (en) * 1974-09-13 1976-05-11 Chou Chen Yen Method of fabricating an electrolytic cell gas sensor
GB1549640A (en) * 1976-07-06 1979-08-08 English Electric Valve Co Ltd Combustible-gas detectors
DE2743842C2 (en) * 1976-10-01 1982-07-01 Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka Solid electrolytic capacitor and process for its manufacture
GB1596623A (en) * 1976-12-13 1981-08-26 Nat Res Dev Catalytic gas detectors
GB1551210A (en) * 1977-02-15 1979-08-22 Matsushita Electric Ind Co Ltd Solid electrolyte capacitor using low resistivity metal oxide as cathode collector
US4193964A (en) * 1977-12-21 1980-03-18 A-T-O Inc. Microminiature palladium oxide gas detector and method of making same
JPS56151349A (en) * 1980-04-25 1981-11-24 Sharp Corp Aging method for sno2 semiconductor gas sensor
SE8105260L (en) * 1980-09-13 1982-03-14 Matsushita Electric Works Ltd Gas Detector
US4412444A (en) * 1981-12-29 1983-11-01 Sun Electric Corporation Method for detection of hydrocarbonaceous fuel in a fuel injection engine
DE3213286C2 (en) * 1982-04-08 1986-01-23 Hitachi, Ltd., Tokio/Tokyo Gas detection device
JPS58191962A (en) * 1982-05-07 1983-11-09 Hitachi Ltd Gas detector
CH666965A5 (en) * 1983-08-30 1988-08-31 Cerberus Ag METHOD FOR PRODUCING MATERIALS FOR GAS SENSORS.
CH667331A5 (en) * 1983-08-30 1988-09-30 Cerberus Ag DEVICE FOR DETECTING GASEOUS IMPURITIES IN AIR BY MEANS OF A GAS SENSOR.
US4614669A (en) * 1983-12-30 1986-09-30 Westinghouse Electric Corp. Antimony-doped stannic oxide thick film gas sensor
JPS61147146A (en) * 1984-12-20 1986-07-04 Fuigaro Giken Kk Lambda sensor
US4646066A (en) * 1985-06-27 1987-02-24 Allied Corporation Environmental indicator device and method
KR101128359B1 (en) * 2003-06-12 2012-03-23 리켄 게이키 가부시키가이샤 Catalytic combustion type gas sensor and method for manufacture thereof
US20090218235A1 (en) * 2007-12-26 2009-09-03 Mcdonald Robert C Gas sensor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4931851A (en) * 1986-03-12 1990-06-05 Thorn Emi Plc Gas sensitive device
US5427740A (en) * 1991-04-05 1995-06-27 British Gas Plc Tin oxide gas sensors
US5629474A (en) * 1993-03-30 1997-05-13 Keele University Production of a sensor for carbon monoxide or water vapor including a semi conductor metallic oxide, catalyst, and rheological agent
US5767388A (en) * 1995-04-26 1998-06-16 Siemens Aktiengesellschaft Methane sensor and method for operating a sensor

Also Published As

Publication number Publication date
FR2073827A5 (en) 1971-10-01
US3644795A (en) 1972-02-22
DE2062574B2 (en) 1974-09-05
JPS5023317B1 (en) 1975-08-06
DE2062574A1 (en) 1971-07-08

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years