GB8820987D0 - Transmissometer - Google Patents

Transmissometer

Info

Publication number
GB8820987D0
GB8820987D0 GB888820987A GB8820987A GB8820987D0 GB 8820987 D0 GB8820987 D0 GB 8820987D0 GB 888820987 A GB888820987 A GB 888820987A GB 8820987 A GB8820987 A GB 8820987A GB 8820987 D0 GB8820987 D0 GB 8820987D0
Authority
GB
United Kingdom
Prior art keywords
transmissometer
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.)
Pending
Application number
GB888820987A
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.)
Aeronautical and General Instruments Ltd
Original Assignee
Aeronautical and General Instruments 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 Aeronautical and General Instruments Ltd filed Critical Aeronautical and General Instruments Ltd
Priority to GB888820987A priority Critical patent/GB8820987D0/en
Publication of GB8820987D0 publication Critical patent/GB8820987D0/en
Priority to AU42113/89A priority patent/AU4211389A/en
Priority to PCT/GB1989/001038 priority patent/WO1990002936A1/en
Priority to GB9104167A priority patent/GB2241327B/en
Pending 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
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
    • G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke
    • G01N21/538—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke for determining atmospheric attenuation and visibility
    • 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
    • G01J3/02—Details
    • G01J3/0205—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows
    • G01J3/0232—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows using shutters
    • 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
    • G01J3/02—Details
    • G01J3/0297—Constructional arrangements for removing other types of optical noise or for performing calibration
    • 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
    • G01J3/02—Details
    • G01J3/08—Beam switching arrangements
    • 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
    • G01N21/031—Multipass arrangements
    • G01N2021/0314—Double pass, autocollimated path
    • 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
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
    • G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke
    • G01N21/534—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke by measuring transmission alone, i.e. determining opacity
    • 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
    • G01N2201/128—Alternating sample and standard or reference part in one path
    • G01N2201/1281—Reflecting part, i.e. for autocollimation

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Length Measuring Devices By Optical Means (AREA)
GB888820987A 1988-09-07 1988-09-07 Transmissometer Pending GB8820987D0 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB888820987A GB8820987D0 (en) 1988-09-07 1988-09-07 Transmissometer
AU42113/89A AU4211389A (en) 1988-09-07 1989-09-05 Transmissometer
PCT/GB1989/001038 WO1990002936A1 (en) 1988-09-07 1989-09-05 Transmissometer
GB9104167A GB2241327B (en) 1988-09-07 1991-02-27 Transmissometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB888820987A GB8820987D0 (en) 1988-09-07 1988-09-07 Transmissometer

Publications (1)

Publication Number Publication Date
GB8820987D0 true GB8820987D0 (en) 1988-10-05

Family

ID=10643199

Family Applications (2)

Application Number Title Priority Date Filing Date
GB888820987A Pending GB8820987D0 (en) 1988-09-07 1988-09-07 Transmissometer
GB9104167A Expired - Lifetime GB2241327B (en) 1988-09-07 1991-02-27 Transmissometer

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB9104167A Expired - Lifetime GB2241327B (en) 1988-09-07 1991-02-27 Transmissometer

Country Status (3)

Country Link
AU (1) AU4211389A (en)
GB (2) GB8820987D0 (en)
WO (1) WO1990002936A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2940447B1 (en) * 2008-12-23 2011-10-21 Continental Automotive France MINIATURE SPECTROMETER EMBARKED IN A MOTOR VEHICLE WITH A MEASUREMENT DETECTOR AND SINGLE REFERENCE SENSOR
EP2487480B1 (en) * 2011-02-09 2014-01-15 ABB Technology AG Optical sensor element and optical sample analysing apparatus

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1235422A (en) * 1959-05-26 1960-07-08 Compteurs Comp D Method and device for measuring oblique visibility
US4469443A (en) * 1982-06-01 1984-09-04 The United States Of America As Represented By The Secretary Of The Navy Atmospheric transmissometer

Also Published As

Publication number Publication date
GB2241327A (en) 1991-08-28
GB9104167D0 (en) 1991-04-17
WO1990002936A1 (en) 1990-03-22
AU4211389A (en) 1990-04-02
GB2241327B (en) 1992-07-22

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