GB2186076B - Chemical monitor - Google Patents

Chemical monitor

Info

Publication number
GB2186076B
GB2186076B GB8702145A GB8702145A GB2186076B GB 2186076 B GB2186076 B GB 2186076B GB 8702145 A GB8702145 A GB 8702145A GB 8702145 A GB8702145 A GB 8702145A GB 2186076 B GB2186076 B GB 2186076B
Authority
GB
United Kingdom
Prior art keywords
chemical monitor
monitor
chemical
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
GB8702145A
Other versions
GB8702145D0 (en
GB2186076A (en
Inventor
Andrew Holmes-Siedle
John Baldwin
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.)
Cogent Ltd
Original Assignee
Cogent 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 Cogent Ltd filed Critical Cogent Ltd
Publication of GB8702145D0 publication Critical patent/GB8702145D0/en
Publication of GB2186076A publication Critical patent/GB2186076A/en
Application granted granted Critical
Publication of GB2186076B publication Critical patent/GB2186076B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G01N21/17—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
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/06—Illumination; Optics
    • G01N2201/062—LED's
    • G01N2201/0621—Supply

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
GB8702145A 1986-01-30 1987-01-30 Chemical monitor Expired - Fee Related GB2186076B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB868602328A GB8602328D0 (en) 1986-01-30 1986-01-30 Chemical monitor

Publications (3)

Publication Number Publication Date
GB8702145D0 GB8702145D0 (en) 1987-03-04
GB2186076A GB2186076A (en) 1987-08-05
GB2186076B true GB2186076B (en) 1990-02-14

Family

ID=10592250

Family Applications (2)

Application Number Title Priority Date Filing Date
GB868602328A Pending GB8602328D0 (en) 1986-01-30 1986-01-30 Chemical monitor
GB8702145A Expired - Fee Related GB2186076B (en) 1986-01-30 1987-01-30 Chemical monitor

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB868602328A Pending GB8602328D0 (en) 1986-01-30 1986-01-30 Chemical monitor

Country Status (1)

Country Link
GB (2) GB8602328D0 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4210829A1 (en) * 1992-04-01 1993-10-07 Jaeger Erich Gmbh & Co Kg Method and device for measuring the partial pressure of various components of a gas mixture
DE19650302A1 (en) * 1996-12-04 1998-06-10 Ruhrgas Ag Method and device for determining the gas quality of a gas mixture

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1186957A (en) * 1967-10-16 1970-04-08 Siemens Ag Improvements in or relating to the Determination of the Concentration of Carbon Monoxide in Gas Mixtures
GB1586622A (en) * 1977-02-18 1981-03-25 Siemens Ag Gas analyser
GB2148487A (en) * 1983-10-13 1985-05-30 Perkins Engines Group Apparatus for measuring smoke density

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1186957A (en) * 1967-10-16 1970-04-08 Siemens Ag Improvements in or relating to the Determination of the Concentration of Carbon Monoxide in Gas Mixtures
GB1586622A (en) * 1977-02-18 1981-03-25 Siemens Ag Gas analyser
GB2148487A (en) * 1983-10-13 1985-05-30 Perkins Engines Group Apparatus for measuring smoke density

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WO A1 84/03770 *

Also Published As

Publication number Publication date
GB8702145D0 (en) 1987-03-04
GB2186076A (en) 1987-08-05
GB8602328D0 (en) 1986-03-05

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Legal Events

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