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GB2001763A - Electrochemical cell gas sensor - Google Patents

Electrochemical cell gas sensor

Info

Publication number
GB2001763A
GB2001763A GB7830712A GB7830712A GB2001763A GB 2001763 A GB2001763 A GB 2001763A GB 7830712 A GB7830712 A GB 7830712A GB 7830712 A GB7830712 A GB 7830712A GB 2001763 A GB2001763 A GB 2001763A
Authority
GB
United Kingdom
Prior art keywords
electrochemical cell
electrodes
gas sensor
cell gas
atmosphere
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.)
Granted
Application number
GB7830712A
Other versions
GB2001763B (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.)
Coal Industry Patents Ltd
Original Assignee
Coal Industry Patents 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 Coal Industry Patents Ltd filed Critical Coal Industry Patents Ltd
Priority to GB7830712A priority Critical patent/GB2001763B/en
Publication of GB2001763A publication Critical patent/GB2001763A/en
Application granted granted Critical
Publication of GB2001763B publication Critical patent/GB2001763B/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
    • G01N27/26—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
    • G01N27/404—Cells with anode, cathode and cell electrolyte on the same side of a permeable membrane which separates them from the sample fluid, e.g. Clark-type oxygen sensors
    • G01N27/4045—Cells with anode, cathode and cell electrolyte on the same side of a permeable membrane which separates them from the sample fluid, e.g. Clark-type oxygen sensors for gases other than oxygen

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Molecular Biology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Measuring Oxygen Concentration In Cells (AREA)

Abstract

For sensing depolarising species in gases, especially for sensing carbon monoxide in air, for example in coal mines, an electrochemical cell has two electrodes of identical composition in the presence of an electrolyte, one of the electrodes being positioned so that an atmosphere to be sensed can diffuse to it. No voltage is applied across the electrodes, other than that resulting from the depolarising action of gas species in the atmosphere and the sensor current is measured. The sensor offers the possibility of manufacturing an easily portable instrument which is not subject to zero drift.
GB7830712A 1977-07-27 1978-07-21 Co-detection Expired GB2001763B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7830712A GB2001763B (en) 1977-07-27 1978-07-21 Co-detection

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3152577 1977-07-27
GB7830712A GB2001763B (en) 1977-07-27 1978-07-21 Co-detection

Publications (2)

Publication Number Publication Date
GB2001763A true GB2001763A (en) 1979-02-07
GB2001763B GB2001763B (en) 1982-01-06

Family

ID=26260946

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7830712A Expired GB2001763B (en) 1977-07-27 1978-07-21 Co-detection

Country Status (1)

Country Link
GB (1) GB2001763B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4790925A (en) * 1987-09-18 1988-12-13 Mine Safety Appliances Company Electrochemical gas sensor
EP0226768A3 (en) * 1985-12-23 1989-10-11 Allied Corporation Method and apparatus for operating electrochemical detector cell
EP0281247A3 (en) * 1987-03-02 1990-05-09 United Kingdom Atomic Energy Authority Gas sensors
EP0572824A1 (en) * 1992-05-20 1993-12-08 Japan Storage Battery Company Limited Galvanic cell type gas concentration sensor system capable of detecting more than one type of gas

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0226768A3 (en) * 1985-12-23 1989-10-11 Allied Corporation Method and apparatus for operating electrochemical detector cell
EP0281247A3 (en) * 1987-03-02 1990-05-09 United Kingdom Atomic Energy Authority Gas sensors
US4790925A (en) * 1987-09-18 1988-12-13 Mine Safety Appliances Company Electrochemical gas sensor
EP0572824A1 (en) * 1992-05-20 1993-12-08 Japan Storage Battery Company Limited Galvanic cell type gas concentration sensor system capable of detecting more than one type of gas
US5415760A (en) * 1992-05-20 1995-05-16 Japan Storage Battery Company Limited Galvanic cell type gas concentration sensor system capable of detecting more than one type of gas

Also Published As

Publication number Publication date
GB2001763B (en) 1982-01-06

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Legal Events

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