GB9511854D0 - gas concentration measurement - Google Patents

gas concentration measurement

Info

Publication number
GB9511854D0
GB9511854D0 GBGB9511854.3A GB9511854A GB9511854D0 GB 9511854 D0 GB9511854 D0 GB 9511854D0 GB 9511854 A GB9511854 A GB 9511854A GB 9511854 D0 GB9511854 D0 GB 9511854D0
Authority
GB
United Kingdom
Prior art keywords
gas concentration
concentration measurement
measurement
gas
concentration
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.)
Withdrawn
Application number
GBGB9511854.3A
Other versions
GB2290139A (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.)
UK Atomic Energy Authority
Original Assignee
UK Atomic Energy Authority
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
Priority claimed from GB9411824A external-priority patent/GB9411824D0/en
Application filed by UK Atomic Energy Authority filed Critical UK Atomic Energy Authority
Priority to GB9511854A priority Critical patent/GB2290139A/en
Publication of GB9511854D0 publication Critical patent/GB9511854D0/en
Publication of GB2290139A publication Critical patent/GB2290139A/en
Withdrawn legal-status Critical Current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
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28—Investigating the spectrum
    • G01J3/42—Absorption spectrometry; Double beam spectrometry; Flicker spectrometry; Reflection spectrometry
    • G01J3/433—Modulation spectrometry; Derivative spectrometry
    • 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
    • G01N21/314—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths
    • 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
    • G01N21/359—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
GB9511854A 1994-06-11 1995-06-12 Gas concentration measurement Withdrawn GB2290139A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9511854A GB2290139A (en) 1994-06-11 1995-06-12 Gas concentration measurement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9411824A GB9411824D0 (en) 1994-06-11 1994-06-11 Gas concentration measurement
GB9511854A GB2290139A (en) 1994-06-11 1995-06-12 Gas concentration measurement

Publications (2)

Publication Number Publication Date
GB9511854D0 true GB9511854D0 (en) 1995-08-09
GB2290139A GB2290139A (en) 1995-12-13

Family

ID=26305061

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9511854A Withdrawn GB2290139A (en) 1994-06-11 1995-06-12 Gas concentration measurement

Country Status (1)

Country Link
GB (1) GB2290139A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI102570B (en) * 1995-12-29 1998-12-31 Instrumentarium Oy Method and apparatus for determining the alcohol content of a gas mixture
WO2003102520A1 (en) * 2002-06-04 2003-12-11 Baker Hughes Incorporated Method and apparatus for a derivative spectrometer
US6798518B2 (en) 2002-06-04 2004-09-28 Baker Hughes Incorporated Method and apparatus for a derivative spectrometer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO156306C (en) * 1984-07-19 1987-09-02 Elektrisk Bureau As INFRAR FIBER OPTICAL GAS DETECTOR.
FI91021C (en) * 1988-11-04 1994-04-25 Instrumentarium Oy Apparatus for the identification of gases and measurement of the content and method for the identification of gases
GB9015800D0 (en) * 1990-07-18 1990-09-05 Secretary Trade Ind Brit Optical long-path monitoring apparatus
EP0510856A3 (en) * 1991-04-26 1993-12-22 Siemens Plessey Controls Ltd Improvements in or relating to optical gas detectors

Also Published As

Publication number Publication date
GB2290139A (en) 1995-12-13

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)