GB2438724B - Gas monitoring system - Google Patents

Gas monitoring system

Info

Publication number
GB2438724B
GB2438724B GB0710169A GB0710169A GB2438724B GB 2438724 B GB2438724 B GB 2438724B GB 0710169 A GB0710169 A GB 0710169A GB 0710169 A GB0710169 A GB 0710169A GB 2438724 B GB2438724 B GB 2438724B
Authority
GB
United Kingdom
Prior art keywords
monitoring system
gas monitoring
gas
monitoring
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 - Fee Related
Application number
GB0710169A
Other versions
GB2438724A (en
GB0710169D0 (en
Inventor
Antony Hofton
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.)
TQ ENVIRONMENTAL PLC
Original Assignee
TQ ENVIRONMENTAL PLC
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 TQ ENVIRONMENTAL PLC filed Critical TQ ENVIRONMENTAL PLC
Publication of GB0710169D0 publication Critical patent/GB0710169D0/en
Publication of GB2438724A publication Critical patent/GB2438724A/en
Application granted granted Critical
Publication of GB2438724B publication Critical patent/GB2438724B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • G01N21/17—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
    • 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
    • G01N21/59—Transmissivity
    • G01N21/61—Non-dispersive gas analysers
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02—Alarms for ensuring the safety of persons
    • G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
    • G08B21/16—Combustible gas alarms
    • 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
    • G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
    • G01N21/274—Calibration, base line adjustment, drift correction

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Analytical Chemistry (AREA)
  • Pathology (AREA)
  • Immunology (AREA)
  • Biochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Emergency Management (AREA)
  • Business, Economics & Management (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
GB0710169A 2006-06-02 2007-05-29 Gas monitoring system Expired - Fee Related GB2438724B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0610921.9A GB0610921D0 (en) 2006-06-02 2006-06-02 Gas monitoring system

Publications (3)

Publication Number Publication Date
GB0710169D0 GB0710169D0 (en) 2007-07-04
GB2438724A GB2438724A (en) 2007-12-05
GB2438724B true GB2438724B (en) 2010-03-03

Family

ID=36694844

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB0610921.9A Ceased GB0610921D0 (en) 2006-06-02 2006-06-02 Gas monitoring system
GB0710169A Expired - Fee Related GB2438724B (en) 2006-06-02 2007-05-29 Gas monitoring system

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB0610921.9A Ceased GB0610921D0 (en) 2006-06-02 2006-06-02 Gas monitoring system

Country Status (1)

Country Link
GB (2) GB0610921D0 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8881576B2 (en) * 2010-04-09 2014-11-11 Inficon Gmbh Test device for performing leak detection at a plurality of test sites
CN108847004A (en) * 2018-06-29 2018-11-20 合肥静美图文科技有限公司 A kind of non-contact gas monitoring device based on wireless communication
CN108961694A (en) * 2018-08-29 2018-12-07 安徽辰控智能科技有限公司 The non-contact gas monitoring device of stand alone type based on NB-IOT

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57190252A (en) * 1981-05-20 1982-11-22 Toshiba Corp Centralized monitoring device for gas concentration
GB2219656A (en) * 1988-06-10 1989-12-13 Plessey Co Plc Sensor for sensing the light absorption of a gas
EP0447931A2 (en) * 1990-03-20 1991-09-25 Tecsa S.P.A. Infrared laser fibre optics gas detection device
US5748325A (en) * 1995-09-11 1998-05-05 Tulip; John Gas detector for plural target zones

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57190252A (en) * 1981-05-20 1982-11-22 Toshiba Corp Centralized monitoring device for gas concentration
GB2219656A (en) * 1988-06-10 1989-12-13 Plessey Co Plc Sensor for sensing the light absorption of a gas
EP0447931A2 (en) * 1990-03-20 1991-09-25 Tecsa S.P.A. Infrared laser fibre optics gas detection device
US5748325A (en) * 1995-09-11 1998-05-05 Tulip; John Gas detector for plural target zones

Also Published As

Publication number Publication date
GB2438724A (en) 2007-12-05
GB0610921D0 (en) 2006-07-12
GB0710169D0 (en) 2007-07-04

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Legal Events

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

Effective date: 20120529