GB2086583B - Gas detector - Google Patents

Gas detector

Info

Publication number
GB2086583B
GB2086583B GB8127112A GB8127112A GB2086583B GB 2086583 B GB2086583 B GB 2086583B GB 8127112 A GB8127112 A GB 8127112A GB 8127112 A GB8127112 A GB 8127112A GB 2086583 B GB2086583 B GB 2086583B
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
GB8127112A
Other versions
GB2086583A (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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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
Priority claimed from JP12776480A external-priority patent/JPS5752850A/en
Priority claimed from JP14976080A external-priority patent/JPS5773662A/en
Priority claimed from JP14975980A external-priority patent/JPS5773661A/en
Priority claimed from JP16489180A external-priority patent/JPS5788356A/en
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Publication of GB2086583A publication Critical patent/GB2086583A/en
Application granted granted Critical
Publication of GB2086583B publication Critical patent/GB2086583B/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
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
    • G01N33/0031—General constructional details of gas analysers, e.g. portable test equipment concerning the detector comprising two or more sensors, e.g. a sensor array

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
GB8127112A 1980-09-13 1981-09-08 Gas detector Expired GB2086583B (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP12776480A JPS5752850A (en) 1980-09-13 1980-09-13 Gas leakage warning device
JP14976080A JPS5773662A (en) 1980-10-25 1980-10-25 Sensing element for combustible gas
JP14975980A JPS5773661A (en) 1980-10-25 1980-10-25 Sensing element for combustible gas
JP16489180A JPS5788356A (en) 1980-11-21 1980-11-21 Alarm device for gas leakage

Publications (2)

Publication Number Publication Date
GB2086583A GB2086583A (en) 1982-05-12
GB2086583B true GB2086583B (en) 1985-06-12

Family

ID=27471330

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8127112A Expired GB2086583B (en) 1980-09-13 1981-09-08 Gas detector

Country Status (4)

Country Link
DE (1) DE3136034A1 (en)
GB (1) GB2086583B (en)
NL (1) NL8104198A (en)
SE (1) SE8105260L (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3377738D1 (en) * 1982-08-27 1988-09-22 Toshiba Kk Co gas detecting device and circuit for driving the same
JPS6170449A (en) * 1984-09-13 1986-04-11 Toshiba Corp Gas detecting element
DE3435874A1 (en) * 1984-09-29 1986-04-03 Horst Dipl.-Ing. 2000 Hamburg Krauleidies METHOD AND ARRANGEMENT FOR MONITORING THE FOREIGN GAS CONCENTRATION IN A GASEOUS CARRIER MEDIUM
DE3739406A1 (en) * 1987-11-20 1989-06-01 Siemens Ag Method for operating a sensor arrangement for detecting gases
DE4334954A1 (en) * 1993-10-14 1995-06-29 Theo Bender Apparatus for monitoring gas leaks in domestic hot water system
DE19536719C2 (en) * 1995-09-30 1997-09-11 Dresden Ev Inst Festkoerper Hydrogen sensitive component
US5908600A (en) * 1996-07-23 1999-06-01 Apl Group International, Llc Monitor for detecting hydrocarbons and other gases in an open area
DE19938280C1 (en) * 1999-08-12 2001-03-15 Draeger Sicherheitstech Gmbh Process for improving the operational safety of optical gas sensors
CN107543845B (en) * 2016-06-23 2020-05-26 华邦电子股份有限公司 Gas sensor

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3479257A (en) * 1966-11-25 1969-11-18 Gen Electric Methods and apparatus for measuring the content of hydrogen or reducing gases in an atmosphere
JPS5023317B1 (en) * 1969-12-19 1975-08-06
US3732519A (en) * 1970-09-23 1973-05-08 N Taguchi Semiconductor gas detecting device
US3835529A (en) * 1970-09-23 1974-09-17 N Taguchi Gas detecting device and method of making same
US4219806A (en) * 1978-09-15 1980-08-26 American District Telegraph Company Dual alarm gas detector

Also Published As

Publication number Publication date
NL8104198A (en) 1982-04-01
DE3136034C2 (en) 1988-05-05
DE3136034A1 (en) 1982-09-09
SE8105260L (en) 1982-03-14
GB2086583A (en) 1982-05-12

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)

Effective date: 19950619