AU2003260767A1 - Gas sensors - Google Patents

Gas sensors

Info

Publication number
AU2003260767A1
AU2003260767A1 AU2003260767A AU2003260767A AU2003260767A1 AU 2003260767 A1 AU2003260767 A1 AU 2003260767A1 AU 2003260767 A AU2003260767 A AU 2003260767A AU 2003260767 A AU2003260767 A AU 2003260767A AU 2003260767 A1 AU2003260767 A1 AU 2003260767A1
Authority
AU
Australia
Prior art keywords
gas sensors
sensors
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.)
Abandoned
Application number
AU2003260767A
Inventor
Graham Paul Hopkins
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.)
Teledyne UK Ltd
Original Assignee
e2v Technologies UK Ltd
e2v Technologies 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 e2v Technologies UK Ltd, e2v Technologies Ltd filed Critical e2v Technologies UK Ltd
Publication of AU2003260767A1 publication Critical patent/AU2003260767A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G01N21/03—Cuvette constructions
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
    • 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—Specially adapted to detect a particular component
    • G01N33/004—Specially adapted to detect a particular component for CO, CO2
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G01N21/03—Cuvette constructions
    • G01N2021/0385—Diffusing membrane; Semipermeable membrane
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/02—Mechanical
    • G01N2201/022—Casings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/12—Circuits of general importance; Signal processing
    • G01N2201/121—Correction signals
    • G01N2201/1211—Correction signals for temperature
AU2003260767A 2002-09-03 2003-09-02 Gas sensors Abandoned AU2003260767A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0220351.1 2002-09-03
GB0220351A GB2392721A (en) 2002-09-03 2002-09-03 Gas sensors
PCT/GB2003/003782 WO2004023113A1 (en) 2002-09-03 2003-09-02 Gas sensors

Publications (1)

Publication Number Publication Date
AU2003260767A1 true AU2003260767A1 (en) 2004-03-29

Family

ID=9943342

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2003260767A Abandoned AU2003260767A1 (en) 2002-09-03 2003-09-02 Gas sensors

Country Status (3)

Country Link
AU (1) AU2003260767A1 (en)
GB (1) GB2392721A (en)
WO (1) WO2004023113A1 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10144873A1 (en) * 2001-09-12 2003-03-27 Bosch Gmbh Robert Micromechanical heat conductivity sensor used for analyzing gas mixtures containing hydrogen and/or helium has a thermally insulating membrane covered on one or both of its sides by a porous covering plate which permits gas diffusion
GB0327931D0 (en) * 2003-12-02 2004-01-07 City Tech Gas sensor
US7244939B2 (en) 2003-12-09 2007-07-17 Dynament Limited Gas sensor
GB2401432B (en) * 2003-12-09 2005-05-04 Dynament Ltd Gas sensor
DE10360215A1 (en) 2003-12-20 2005-07-28 Robert Bosch Gmbh gas sensor
SE534082C2 (en) 2004-12-29 2011-04-26 Senseair Ab A gas detecting arrangement
DE102005018470A1 (en) * 2005-04-21 2006-10-26 Robert Bosch Gmbh Optical gas sensor
US7214939B1 (en) * 2005-11-21 2007-05-08 Airware, Inc. Ultra low power NDIR carbon dioxide sensor fire detector
DE102007006155A1 (en) * 2007-02-07 2008-08-14 Tyco Electronics Raychem Gmbh Substrate with integrated filter for gas sensor arrangements
GB0705356D0 (en) 2007-03-21 2007-04-25 Alphasense Ltd Optical absorption gas sensor
JP2009092545A (en) 2007-10-10 2009-04-30 Panasonic Corp Composite sensor for detecting angular velocity and acceleration
US20100010520A1 (en) 2008-07-11 2010-01-14 Olympus Medical Systems Corp. Tissue fastener
SE534685C2 (en) * 2008-12-12 2011-11-15 Senseair Ab Gas sensor arrangement for circuit boards
DE102009036114B3 (en) * 2009-08-05 2010-09-02 Dräger Safety AG & Co. KGaA Infrared-optical gas measurement device for use in warning- and alarm system for monitoring concentration of e.g. explosive gas in industry, has split washers or perforated disks arranged in region of gas inlet opening
SE535267C2 (en) * 2009-10-26 2012-06-12 Senseair Ab A measurement cell adapted to a spectral analysis
US8922381B2 (en) 2011-07-20 2014-12-30 Logico2 Online Sarl Device and system for gas leakage detection and alarm
JP5985909B2 (en) * 2012-07-10 2016-09-06 旭化成エレクトロニクス株式会社 Gas sensor

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4709150A (en) * 1986-03-18 1987-11-24 Burough Irvin G Method and apparatus for detecting gas
JPH0619327B2 (en) * 1988-03-10 1994-03-16 三洋電機株式会社 Infrared gas concentration meter
US5053754A (en) * 1990-04-02 1991-10-01 Gaztech Corporation Simple fire detector
GB2262338A (en) * 1991-07-02 1993-06-16 Stephen William Goom Infra red gas detector
US5596314A (en) * 1994-08-01 1997-01-21 Quantum Group, Inc. Enclosure for a gas detector system
DE19645321A1 (en) * 1996-11-04 1998-05-07 Gerhard Prof Dr Wiegleb Gas sensor arrangement
US6067840A (en) * 1997-08-04 2000-05-30 Texas Instruments Incorporated Method and apparatus for infrared sensing of gas
US6410918B1 (en) * 1997-10-28 2002-06-25 Edwards Systems Technology, Inc. Diffusion-type NDIR gas analyzer with improved response time due to convection flow
US6201245B1 (en) * 1998-06-18 2001-03-13 Robert J. Schrader Infrared, multiple gas analyzer and methods for gas analysis
GB2358245A (en) * 1999-10-21 2001-07-18 Pittway Corp Photo-acoustic gas sensor
US20020104967A1 (en) * 2001-02-06 2002-08-08 Spx Corporation Gas sensor based on energy absorption

Also Published As

Publication number Publication date
GB2392721A (en) 2004-03-10
GB0220351D0 (en) 2002-10-09
WO2004023113A1 (en) 2004-03-18

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase