WO2001014864A3 - A gas sensor and its method of manufacture - Google Patents

A gas sensor and its method of manufacture Download PDF

Info

Publication number
WO2001014864A3
WO2001014864A3 PCT/GB2000/003285 GB0003285W WO0114864A3 WO 2001014864 A3 WO2001014864 A3 WO 2001014864A3 GB 0003285 W GB0003285 W GB 0003285W WO 0114864 A3 WO0114864 A3 WO 0114864A3
Authority
WO
WIPO (PCT)
Prior art keywords
electrodes
self test
gas sensor
electrode
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.)
Ceased
Application number
PCT/GB2000/003285
Other languages
French (fr)
Other versions
WO2001014864A2 (en
Inventor
John Robert Dodgson
Malcolm Trayton Austin
John Edward Andrew Shaw
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.)
Central Research Laboratories Ltd
Original Assignee
Central Research Laboratories 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 Central Research Laboratories Ltd filed Critical Central Research Laboratories Ltd
Priority to EP00954786A priority Critical patent/EP1210593A2/en
Priority to AU67141/00A priority patent/AU6714100A/en
Publication of WO2001014864A2 publication Critical patent/WO2001014864A2/en
Publication of WO2001014864A3 publication Critical patent/WO2001014864A3/en
Anticipated expiration legal-status Critical
Ceased 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
    • 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
    • G01N27/416—Systems
    • G01N27/4163—Systems checking the operation of, or calibrating, the measuring apparatus
    • 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
    • G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
    • G01N33/004—CO or CO2

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Molecular Biology (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Measuring Oxygen Concentration In Cells (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)

Abstract

The invention relates to a gas sensor and its method of manufacture. Previously gas sensors required a wick in order to maintain an electrode in a wetted state. This entailed complex structures and fabrication techniques. In a preferred embodiment a gas sensor has at least first and second sensing electrodes formed on a gas permeable substrate, at least one of the electrodes contacts a liquid electrolyte. There is also provided two self test electrodes, at least one of which is formed on the same surface of the substrate on which the sensing electrode is formed. A hydrophobic envelope surrounds a volume of solid polymer electrolyte, which defines an electrical pathway between the first and second self test electrodes thereby defining a self test gas generator. The invention thereby removes the need for wicks simultaneously in contact with an electrode and a liquid electrolyte.
PCT/GB2000/003285 1999-08-24 2000-08-24 A gas sensor and its method of manufacture Ceased WO2001014864A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP00954786A EP1210593A2 (en) 1999-08-24 2000-08-24 A gas sensor and its method of manufacture
AU67141/00A AU6714100A (en) 1999-08-24 2000-08-24 A gas sensor and its method of manufacture

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9919897.0A GB9919897D0 (en) 1999-08-24 1999-08-24 A gas sensor and method of manufacture
GB9919897.0 1999-08-24

Publications (2)

Publication Number Publication Date
WO2001014864A2 WO2001014864A2 (en) 2001-03-01
WO2001014864A3 true WO2001014864A3 (en) 2001-05-31

Family

ID=10859624

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2000/003285 Ceased WO2001014864A2 (en) 1999-08-24 2000-08-24 A gas sensor and its method of manufacture

Country Status (4)

Country Link
EP (1) EP1210593A2 (en)
AU (1) AU6714100A (en)
GB (1) GB9919897D0 (en)
WO (1) WO2001014864A2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100895984B1 (en) * 2001-05-25 2009-05-07 휘가로기켄 가부시키가이샤 Proton conductor gas sensor
US10976280B2 (en) 2016-07-01 2021-04-13 Figaro Engineering Inc. Electrochemical gas sensor

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4544605B2 (en) * 2001-04-19 2010-09-15 根本特殊化学株式会社 Electrochemical sensor
US6948352B2 (en) * 2002-02-07 2005-09-27 Walter Kidde Portable Equipment, Inc. Self-calibrating carbon monoxide detector and method
GB0223202D0 (en) * 2002-10-07 2002-11-13 City Tech Electrochemical oxygen sensor
GB2407870B (en) * 2003-11-10 2006-09-06 Kidde Ip Holdings Ltd Self-testing gas detector
WO2005047879A1 (en) * 2003-11-14 2005-05-26 Figaro Engineering Inc. Liquid electrochemical gas sensor
JP4140911B2 (en) 2005-03-04 2008-08-27 フィガロ技研株式会社 Liquid electrochemical gas sensor
JP2008164305A (en) * 2006-12-26 2008-07-17 Yazaki Corp Electrochemical sensor, target gas monitoring device, and electrochemical sensor concentration detection method
US20120125772A1 (en) * 2010-11-24 2012-05-24 Kwj Engineering Inc. Printed Gas Sensor
US9784708B2 (en) * 2010-11-24 2017-10-10 Spec Sensors, Llc Printed gas sensor
DE102012016816B4 (en) 2012-08-24 2021-02-04 Testo SE & Co. KGaA Gas sensor
CN103604859B (en) * 2013-11-25 2016-05-04 深圳市锦瑞电子有限公司 Blomelicalbloodgasandelectrolrteanalyzers and method of testing thereof
CN106537131A (en) * 2014-06-27 2017-03-22 斯佩克传感器有限责任公司 Printed gas sensor
WO2016040771A1 (en) 2014-09-12 2016-03-17 Spec Sensors, Llc Breath sampling devices and methods of breath sampling using sensors
JP6429193B2 (en) * 2015-02-10 2018-11-28 光明理化学工業株式会社 Alcohol sensor
WO2016191552A1 (en) 2015-05-26 2016-12-01 Spec Sensors, Llc Wireless near-field gas sensor system and methods of manufacturing the same
CN108027336A (en) 2015-07-22 2018-05-11 霍尼韦尔国际公司 Vent Tanks and Vent Reservoirs
WO2017014764A1 (en) * 2015-07-22 2017-01-26 Honeywell International Inc. Inert corrosion barriers for current collector protection
US10948452B2 (en) 2015-08-24 2021-03-16 Honeywell International Inc. Sensing electrode oxygen control in an oxygen sensor
EP3480589B1 (en) 2017-11-03 2022-09-21 Honeywell International Inc. Electrochemical gas sensor constructed with mems fabrication technology

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2180653A (en) * 1985-09-13 1987-04-01 Licentia Gmbh Electrochemical cell
EP0762117A2 (en) * 1995-09-01 1997-03-12 Atwood Industries Inc. Carbon monoxide and toxic gas sensor with humidity compensation based on protonic conductive membranes and method of fabrication
GB2306656A (en) * 1995-10-16 1997-05-07 Univ Leeds Electrochemical gas sensor
WO1998025139A1 (en) * 1996-12-07 1998-06-11 Central Research Laboratories Limited Gas sensors

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2180653A (en) * 1985-09-13 1987-04-01 Licentia Gmbh Electrochemical cell
EP0762117A2 (en) * 1995-09-01 1997-03-12 Atwood Industries Inc. Carbon monoxide and toxic gas sensor with humidity compensation based on protonic conductive membranes and method of fabrication
GB2306656A (en) * 1995-10-16 1997-05-07 Univ Leeds Electrochemical gas sensor
WO1998025139A1 (en) * 1996-12-07 1998-06-11 Central Research Laboratories Limited Gas sensors

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SCHIAVON G: "ELECTROCHEMICAL DETECTION OF TRACE HYDROGEN SULFIDE IN GASEOUS SAMPLESS BY POROUS SILVER ELECTRODES SUPPORTED ON ION-EXCHANGE MEMBRANES (SOLID POLYMER ELECTROLYTES)", ANALYTICAL CHEMISTRY,US,AMERICAN CHEMICAL SOCIETY. COLUMBUS, vol. 67, no. 2, 15 January 1995 (1995-01-15), pages 318 - 323, XP000482606, ISSN: 0003-2700 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100895984B1 (en) * 2001-05-25 2009-05-07 휘가로기켄 가부시키가이샤 Proton conductor gas sensor
US10976280B2 (en) 2016-07-01 2021-04-13 Figaro Engineering Inc. Electrochemical gas sensor

Also Published As

Publication number Publication date
WO2001014864A2 (en) 2001-03-01
AU6714100A (en) 2001-03-19
GB9919897D0 (en) 1999-10-27
EP1210593A2 (en) 2002-06-05

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