GB2240172B - A spectroscopy sensing method and apparatus for the measurement or detection of a material - Google Patents

A spectroscopy sensing method and apparatus for the measurement or detection of a material

Info

Publication number
GB2240172B
GB2240172B GB9001224A GB9001224A GB2240172B GB 2240172 B GB2240172 B GB 2240172B GB 9001224 A GB9001224 A GB 9001224A GB 9001224 A GB9001224 A GB 9001224A GB 2240172 B GB2240172 B GB 2240172B
Authority
GB
United Kingdom
Prior art keywords
measurement
detection
sensing method
spectroscopy sensing
spectroscopy
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
GB9001224A
Other versions
GB9001224D0 (en
GB2240172A (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.)
York Ltd
Original Assignee
York 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 York Ltd filed Critical York Ltd
Priority to GB9001224A priority Critical patent/GB2240172B/en
Publication of GB9001224D0 publication Critical patent/GB9001224D0/en
Publication of GB2240172A publication Critical patent/GB2240172A/en
Application granted granted Critical
Publication of GB2240172B publication Critical patent/GB2240172B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • G01J3/12—Generating the spectrum; Monochromators
    • G01J3/1256—Generating the spectrum; Monochromators using acousto-optic tunable filter
    • 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
    • G01J3/4338—Frequency modulated spectrometry
    • 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
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/0014—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the radiation from gases, flames
    • 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
    • G01N2021/3531—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 without instrumental source, i.e. radiometric
    • 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
    • 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
    • G01N2201/061—Sources
    • G01N2201/0616—Ambient light is used

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
GB9001224A 1990-01-19 1990-01-19 A spectroscopy sensing method and apparatus for the measurement or detection of a material Expired - Fee Related GB2240172B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9001224A GB2240172B (en) 1990-01-19 1990-01-19 A spectroscopy sensing method and apparatus for the measurement or detection of a material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9001224A GB2240172B (en) 1990-01-19 1990-01-19 A spectroscopy sensing method and apparatus for the measurement or detection of a material

Publications (3)

Publication Number Publication Date
GB9001224D0 GB9001224D0 (en) 1990-03-21
GB2240172A GB2240172A (en) 1991-07-24
GB2240172B true GB2240172B (en) 1993-11-17

Family

ID=10669560

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9001224A Expired - Fee Related GB2240172B (en) 1990-01-19 1990-01-19 A spectroscopy sensing method and apparatus for the measurement or detection of a material

Country Status (1)

Country Link
GB (1) GB2240172B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU689822B2 (en) * 1994-01-11 1998-04-09 Varian Australia Pty Ltd Method and means for carrying out atomic spectroscopy

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0076886A1 (en) * 1981-09-22 1983-04-20 H. Maihak Ag Method and device for the measurement of the concentration ratio of 2 components in a mixture, absorbing infrared, near infrared, visible or ultraviolet radiation
US4818705A (en) * 1986-03-12 1989-04-04 Pierburg Gmbh Method and apparatus for analyzing the composition of the exhaust gas of any internal combustion engine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0076886A1 (en) * 1981-09-22 1983-04-20 H. Maihak Ag Method and device for the measurement of the concentration ratio of 2 components in a mixture, absorbing infrared, near infrared, visible or ultraviolet radiation
US4818705A (en) * 1986-03-12 1989-04-04 Pierburg Gmbh Method and apparatus for analyzing the composition of the exhaust gas of any internal combustion engine

Also Published As

Publication number Publication date
GB9001224D0 (en) 1990-03-21
GB2240172A (en) 1991-07-24

Similar Documents

Publication Publication Date Title
IL97171A0 (en) Method and apparatus for detecting hidden explosive material
EP0449596A3 (en) Distance measuring method and apparatus therefor
EP0449582A3 (en) Measuring method and apparatus
EP0533590A3 (en) Distance measuring method and apparatus
EP0170723A3 (en) Method and apparatus for increasing the sensitivity of contactless displacement sensors
EP0473282A3 (en) Method and apparatus for measuring modulation accuracy
EP0664437A3 (en) Method and apparatus for obtaining non-destructive measurements for regularly-shaped objects.
HK1002047A1 (en) Method of and apparatus for determining the position of a transducer
EP0460471A3 (en) Method and apparatus for measuring cross-toe
EP0512312A3 (en) Method and measuring for contactless on-line measurement
EP0489513A3 (en) Apparatus and method for detecting and measuring contaminants
GB9109890D0 (en) Apparatus and method for sensing the relative position of two members
GB9003569D0 (en) A method and apparatus for testing the response of a stress wave sensor
EP0405752A3 (en) Sensing apparatus and method
IL99595A0 (en) Apparatus and method for sensing temperature
EP0299646A3 (en) Improved method and apparatus for sensing or determining one or more properties or the identity of a sample
EP0517455A3 (en) Non-destructive evaluation apparatus and method for superconducting materials
EP0495519A3 (en) Apparatus and method for measuring a test specimen
GB2244808B (en) Method and apparatus for interferometric measurement
GB2240172B (en) A spectroscopy sensing method and apparatus for the measurement or detection of a material
EP0480262A3 (en) Process and apparatus for measuring the visco-elastic properties of a polymeric material
GB2242028B (en) Method of and apparatus for the continuous non-destructive testing of articles
EP0486050A3 (en) Method and apparatus for measuring displacement
ZA912366B (en) Distance measuring method and apparatus therefor
GB2243679B (en) Measuring apparatus and method

Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19970119