GB2004653A – Semiconductor gas detecting elements
– Google Patents
GB2004653A – Semiconductor gas detecting elements
– Google Patents
Semiconductor gas detecting elements
Info
Publication number
GB2004653A
GB2004653A
GB7835502A
GB7835502A
GB2004653A
GB 2004653 A
GB2004653 A
GB 2004653A
GB 7835502 A
GB7835502 A
GB 7835502A
GB 7835502 A
GB7835502 A
GB 7835502A
GB 2004653 A
GB2004653 A
GB 2004653A
Authority
GB
United Kingdom
Prior art keywords
alkali
glassy
borate
oxide
glass
Prior art date
1977-09-02
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.)
Granted
Application number
GB7835502A
Other versions
GB2004653B
(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.)
Auergesellschaft GmbH
Original Assignee
Auergesellschaft GmbH
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.)
1977-09-02
Filing date
1978-09-04
Publication date
1979-04-04
1978-09-04
Application filed by Auergesellschaft GmbH
filed
Critical
Auergesellschaft GmbH
1979-04-04
Publication of GB2004653A
publication
Critical
patent/GB2004653A/en
1982-07-14
Application granted
granted
Critical
1982-07-14
Publication of GB2004653B
publication
Critical
patent/GB2004653B/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
G01N27/14—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature
G01N27/16—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature caused by burning or catalytic oxidation of surrounding material to be tested, e.g. of gas
Abstract
This invention describes a catalytically inactive gas-detecting element for gas-measuring apparatus of the kind comprising a coil of platinum or platinum alloy 1 which is enveloped by a glassy-coated 3 body 2 of metal oxide. According to the invention the glassy-coating 3 contains a phosphate and/or a borate as a main component and an alkali oxide, an alkali hydroxide or an alkali earth oxide as an additional component. The main component may include compounds of gallium, tin, antimony or germanium. Such an element may be manufactured by applying a glass- forming substance to a metal oxide body from aqueous solution by dipping the body in a concentrated solution of the glass-forming substance and thereafter heating the body which has become impregnated in this way at a temperature of between 400 DEG C and 700 DEG C, preferably at approximately 500 DEG C. In specific examples, the body is dipped in a concentrated solution of an alkali phosphate or borate.
GB7835502A
1977-09-02
1978-09-04
Catalytically inactive gas-detecting elements
Expired
GB2004653B
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
DE19772740158
DE2740158A1
(en)
1977-09-02
1977-09-02
CATALYTICALLY INACTIVE GAS DETECTING ELEMENT AND METHOD FOR THE PRODUCTION THEREOF
Publications (2)
Publication Number
Publication Date
GB2004653A
true
GB2004653A
(en)
1979-04-04
GB2004653B
GB2004653B
(en)
1982-07-14
Family
ID=6018258
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB7835502A
Expired
GB2004653B
(en)
1977-09-02
1978-09-04
Catalytically inactive gas-detecting elements
Country Status (4)
Country
Link
JP
(1)
JPS5449199A
(en)
DE
(1)
DE2740158A1
(en)
FR
(1)
FR2402206A1
(en)
GB
(1)
GB2004653B
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2125218A
(en)
*
1982-08-05
1984-02-29
Bacharach Instr Co
Catalytic gas sensor reference element
Families Citing this family (5)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE3122662A1
(en)
*
1980-06-11
1982-04-01
Mine Safety Appliances Co. Ltd., Reading, Berkshire
Electrically heatable element and method of producing it
DE3906599A1
(en)
*
1989-03-02
1990-09-06
Draegerwerk Ag
Compensation element for a measuring device for combustible gases
DE4004977C2
(en)
*
1990-02-19
1994-01-20
Auergesellschaft Gmbh
Catalytically inactive gas detection element and method for its production
WO2006090433A1
(en)
*
2005-02-22
2006-08-31
Fis Inc.
Hydrogen gas sensor and process for producing the same
JP4559894B2
(en)
*
2005-03-29
2010-10-13
シチズンホールディングス株式会社
Contact combustion type gas sensor element
Family Cites Families (5)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
NL236206A
(en)
*
1958-02-18
DE1197251B
(en)
*
1958-02-18
1965-07-22
Nat Res Dev
Catalytically inactive, heated detector element for gas analyzers
US3586486A
(en)
*
1968-02-23
1971-06-22
Bosch Arma Corp
Gas analyzer
US3959764A
(en)
*
1974-10-09
1976-05-25
Dictaphone Corporation
Gas analyzing element
JPS5227556A
(en)
*
1975-08-27
1977-03-01
Hitachi Ltd
Wiring substrate
1977
1977-09-02
DE
DE19772740158
patent/DE2740158A1/en
active
Pending
1978
1978-08-21
FR
FR7824239A
patent/FR2402206A1/en
active
Granted
1978-08-29
JP
JP10544078A
patent/JPS5449199A/en
active
Pending
1978-09-04
GB
GB7835502A
patent/GB2004653B/en
not_active
Expired
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2125218A
(en)
*
1982-08-05
1984-02-29
Bacharach Instr Co
Catalytic gas sensor reference element
Also Published As
Publication number
Publication date
FR2402206B1
(en)
1980-03-21
DE2740158A1
(en)
1979-03-15
GB2004653B
(en)
1982-07-14
JPS5449199A
(en)
1979-04-18
FR2402206A1
(en)
1979-03-30
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Legal Events
Date
Code
Title
Description
1988-04-27
PCNP
Patent ceased through non-payment of renewal fee
