GB2219656B - Sensors - Google Patents

Sensors

Info

Publication number
GB2219656B
GB2219656B GB8813775A GB8813775A GB2219656B GB 2219656 B GB2219656 B GB 2219656B GB 8813775 A GB8813775 A GB 8813775A GB 8813775 A GB8813775 A GB 8813775A GB 2219656 B GB2219656 B GB 2219656B
Authority
GB
United Kingdom
Prior art keywords
sensors
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
GB8813775A
Other versions
GB2219656A (en
GB8813775D0 (en
Inventor
John Philip Dakin
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.)
Siemens Plessey Controls Ltd
Plessey Co Ltd
Original Assignee
Siemens Plessey Controls Ltd
Plessey Co 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 Siemens Plessey Controls Ltd, Plessey Co Ltd filed Critical Siemens Plessey Controls Ltd
Priority to GB8813775A priority Critical patent/GB2219656B/en
Publication of GB8813775D0 publication Critical patent/GB8813775D0/en
Publication of GB2219656A publication Critical patent/GB2219656A/en
Application granted granted Critical
Publication of GB2219656B publication Critical patent/GB2219656B/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
    • 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
    • G01N21/25—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
    • G01N2021/3513—Open path with an instrumental source
    • 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
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/85—Investigating moving fluids or granular solids
    • G01N2021/8578—Gaseous flow
    • 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
    • G01N2201/08—Optical fibres; light guides
    • G01N2201/0833—Fibre array at detector, resolving
    • 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
    • G01N2201/08—Optical fibres; light guides
    • G01N2201/084—Fibres for remote transmission

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)
GB8813775A 1988-06-10 1988-06-10 Sensors Expired - Fee Related GB2219656B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8813775A GB2219656B (en) 1988-06-10 1988-06-10 Sensors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8813775A GB2219656B (en) 1988-06-10 1988-06-10 Sensors

Publications (3)

Publication Number Publication Date
GB8813775D0 GB8813775D0 (en) 1988-07-13
GB2219656A GB2219656A (en) 1989-12-13
GB2219656B true GB2219656B (en) 1992-01-29

Family

ID=10638423

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8813775A Expired - Fee Related GB2219656B (en) 1988-06-10 1988-06-10 Sensors

Country Status (1)

Country Link
GB (1) GB2219656B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4133131C2 (en) * 1991-10-05 1996-07-04 Ultrakust Electronic Gmbh Arrangement for determining chemical and / or physical quantities influencing the light intensity
GB2274163B (en) * 1993-01-12 1996-11-20 Pollution Monitor Syst Ltd Gas analyser
US5572031A (en) * 1994-11-23 1996-11-05 Sri International Pressure- and temperature-compensating oxygen sensor
NO310746B1 (en) * 1998-02-26 2001-08-20 Simrad Optronics As Sensor system for measuring light absorption
GB0610921D0 (en) * 2006-06-02 2006-07-12 Tq Environmental Plc Gas monitoring system
GB0723561D0 (en) * 2007-12-01 2008-01-09 Smiths Group Plc Optical apparatus
DE102010062027A1 (en) * 2010-11-26 2012-05-31 Siemens Aktiengesellschaft Measurement setup for optical absorption spectroscopy
CN108872615B (en) * 2018-04-26 2021-08-06 迪瑞医疗科技股份有限公司 Coupling type blood coagulation testing system and method
AT525197B1 (en) * 2021-06-25 2023-06-15 Avl List Gmbh Measuring unit and a method for measuring at least one gaseous or solid substance
AT525194B1 (en) * 2021-06-25 2023-03-15 Avl List Gmbh Device for measuring at least one gaseous or solid substance
AT525195B1 (en) * 2021-06-25 2023-06-15 Avl List Gmbh Measuring unit for measuring a gaseous or solid substance in a measuring volume

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
IEE Electronics & Power, Nov/Dec 1986, UK, A M Smith, "Optical-fibre sensors", PP811-813. *
Journal of Physics E, Scientific Instruments, Vol 20, 1987, UK, J P Dakin, PP954-967. *

Also Published As

Publication number Publication date
GB2219656A (en) 1989-12-13
GB8813775D0 (en) 1988-07-13

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19920610