ZA867880B - Gas monitor circuits - Google Patents

Gas monitor circuits

Info

Publication number
ZA867880B
ZA867880B ZA867880A ZA867880A ZA867880B ZA 867880 B ZA867880 B ZA 867880B ZA 867880 A ZA867880 A ZA 867880A ZA 867880 A ZA867880 A ZA 867880A ZA 867880 B ZA867880 B ZA 867880B
Authority
ZA
South Africa
Prior art keywords
gas monitor
monitor circuits
circuits
gas
monitor
Prior art date
Application number
ZA867880A
Other languages
English (en)
Inventor
Gareth Jeremy Jones
Howard Buckenham
Paul Gotley
Original Assignee
Neotronics 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 Neotronics Ltd filed Critical Neotronics Ltd
Publication of ZA867880B publication Critical patent/ZA867880B/xx

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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Biochemistry (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Molecular Biology (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
ZA867880A 1985-10-18 1986-10-17 Gas monitor circuits ZA867880B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB858525694A GB8525694D0 (en) 1985-10-18 1985-10-18 Gas monitor circuits

Publications (1)

Publication Number Publication Date
ZA867880B true ZA867880B (en) 1988-05-25

Family

ID=10586861

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA867880A ZA867880B (en) 1985-10-18 1986-10-17 Gas monitor circuits

Country Status (7)

Country Link
US (1) US4776203A (xx)
EP (1) EP0220896B1 (xx)
JP (1) JPS62116248A (xx)
CA (1) CA1277509C (xx)
DE (1) DE3688389T2 (xx)
GB (1) GB8525694D0 (xx)
ZA (1) ZA867880B (xx)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU644355B2 (en) * 1989-04-04 1993-12-09 Zellweger Analytics Limited Fault detection in electrochemical gas sensing equipment
GB8907564D0 (en) * 1989-04-04 1989-05-17 Neotronics Technology Plc Fault detection in electrochemical gas sensing equipment
US5466356A (en) * 1994-04-29 1995-11-14 Mine Safety Appliances Company Potentiostat circuit for electrochemical cells
US5841021A (en) * 1995-09-05 1998-11-24 De Castro; Emory S. Solid state gas sensor and filter assembly
DE19739317A1 (de) * 1997-09-08 1999-03-11 Conducta Endress & Hauser Elektrische Schaltung für einen elektrochemischen Sensor
US6632674B1 (en) 1999-03-31 2003-10-14 Industrial Scientific Corporation Method of testing gas detection instruments and associated apparatus
US6981076B1 (en) * 2000-09-27 2005-12-27 Dell Products L.P. Mechanism to disable dynamically a computer audio input/output connector
US6484559B2 (en) * 2001-02-26 2002-11-26 Lucent Technologies Inc. Odor sensing with organic transistors
GB0115585D0 (en) * 2001-06-26 2001-08-15 Zellweger Analytics Ltd Monitoring gas sensors
JP4820193B2 (ja) * 2006-03-20 2011-11-24 矢崎総業株式会社 ガス濃度測定装置
US10234417B2 (en) * 2016-02-02 2019-03-19 Msa Technology, Llc Sensor interrogation with fast recovery
US11567035B2 (en) * 2017-05-09 2023-01-31 The Johns Hopkins University Ratiometric vapor sensor
CN110579525B (zh) * 2018-06-08 2023-08-18 天马日本株式会社 传感器装置
JP6805321B1 (ja) * 2019-11-21 2020-12-23 新コスモス電機株式会社 検知器

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3818244A (en) * 1970-01-23 1974-06-18 Dolley Labor Inc Limiters for noise reduction systems
GB1385201A (en) * 1971-05-06 1975-02-26 Nat Res Dev Eleczrochemical cells
GB1514136A (en) * 1975-03-31 1978-06-14 Yokogawa Electric Works Ltd Variable resistance circuit
US4227984A (en) * 1979-03-01 1980-10-14 General Electric Company Potentiostated, three-electrode, solid polymer electrolyte (SPE) gas sensor having highly invariant background current characteristics with temperature during zero-air operation

Also Published As

Publication number Publication date
EP0220896A3 (en) 1988-10-05
DE3688389D1 (de) 1993-06-09
EP0220896A2 (en) 1987-05-06
CA1277509C (en) 1990-12-11
US4776203A (en) 1988-10-11
DE3688389T2 (de) 1993-08-26
JPS62116248A (ja) 1987-05-27
GB8525694D0 (en) 1985-11-20
EP0220896B1 (en) 1993-05-05

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