GB2089041B - A flow type photoacoustic detector - Google Patents

A flow type photoacoustic detector

Info

Publication number
GB2089041B
GB2089041B GB8130315A GB8130315A GB2089041B GB 2089041 B GB2089041 B GB 2089041B GB 8130315 A GB8130315 A GB 8130315A GB 8130315 A GB8130315 A GB 8130315A GB 2089041 B GB2089041 B GB 2089041B
Authority
GB
United Kingdom
Prior art keywords
flow type
photoacoustic detector
type photoacoustic
detector
flow
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
Application number
GB8130315A
Other versions
GB2089041A (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.)
Tosoh Corp
Original Assignee
Toyo Soda Manufacturing 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 Toyo Soda Manufacturing Co Ltd filed Critical Toyo Soda Manufacturing Co Ltd
Publication of GB2089041A publication Critical patent/GB2089041A/en
Application granted granted Critical
Publication of GB2089041B publication Critical patent/GB2089041B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/24—Probes
    • G01N29/2418—Probes using optoacoustic interaction with the material, e.g. laser radiation, photoacoustics
    • G01N29/2425—Probes using optoacoustic interaction with the material, e.g. laser radiation, photoacoustics optoacoustic fluid cells therefor
    • 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
    • G01N21/1702—Systems in which incident light is modified in accordance with the properties of the material investigated with opto-acoustic detection, e.g. for gases or analysing solids
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/02—Analysing fluids
    • G01N29/032—Analysing fluids by measuring attenuation of acoustic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/223—Supports, positioning or alignment in fixed situation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/34—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor
    • G01N29/346—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor with amplitude characteristics, e.g. modulated signal
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/34—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor
    • G01N29/348—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor with frequency characteristics, e.g. single frequency signals, chirp signals
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
    • G01N29/46—Processing the detected response signal, e.g. electronic circuits specially adapted therefor by spectral analysis, e.g. Fourier analysis or wavelet analysis
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/10—Number of transducers
    • G01N2291/102—Number of transducers one emitter, one receiver

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Immunology (AREA)
  • Chemical & Material Sciences (AREA)
  • Pathology (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Optics & Photonics (AREA)
  • Acoustics & Sound (AREA)
  • Mathematical Physics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
GB8130315A 1980-10-07 1981-10-07 A flow type photoacoustic detector Expired GB2089041B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55140031A JPS5764145A (en) 1980-10-07 1980-10-07 Flow type optoacoustic detector

Publications (2)

Publication Number Publication Date
GB2089041A GB2089041A (en) 1982-06-16
GB2089041B true GB2089041B (en) 1984-05-31

Family

ID=15259340

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8130315A Expired GB2089041B (en) 1980-10-07 1981-10-07 A flow type photoacoustic detector

Country Status (5)

Country Link
JP (1) JPS5764145A (en)
CA (1) CA1186402A (en)
DE (1) DE3139917A1 (en)
FR (1) FR2491623B1 (en)
GB (1) GB2089041B (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5946839A (en) * 1982-09-10 1984-03-16 Hitachi Ltd Photocoustic analysis device
JPS61102541A (en) * 1984-10-25 1986-05-21 Hitachi Ltd Method and instrument for analyzing impurity in liquid
US4622845A (en) * 1985-03-21 1986-11-18 Westinghouse Electric Corp. Method and apparatus for the detection and measurement of gases
JPS6224129A (en) * 1985-07-24 1987-02-02 Hitachi Ltd Concentration analysis method and apparatus
DE3707622A1 (en) * 1987-03-10 1988-09-22 Pierburg Gmbh Method and device for measuring low gas concentrations
US5125749A (en) * 1990-09-24 1992-06-30 The Dow Chemical Company Probe for photoacoustic analysis
DE4225395A1 (en) * 1992-07-29 1994-02-03 Johannisthaler Forschungstechn Appts. for photo-acoustive spectroscopy - has sample chamber and light source for periodical sample radiation together with pressuure sensor
CH685889A5 (en) * 1994-09-07 1995-10-31 Scr Crevoiserat S A Method and apparatus for determining gas concentrations in a gas mixture
US5900533A (en) * 1995-08-03 1999-05-04 Trw Inc. System and method for isotope ratio analysis and gas detection by photoacoustics
DE19602048C2 (en) * 1996-01-20 1999-07-01 Karlsruhe Forschzent Pressure wave sensor
DE19744500A1 (en) * 1997-10-09 1999-04-15 Abb Research Ltd Photoacoustic free-fall measuring cell
FR2775344B1 (en) * 1998-02-20 2000-05-12 Compucal DEVICE FOR MEASURING MOLECULAR CONCENTRATION WITHOUT INTRUSION IN PRODUCTS SUCH AS FRUITS AND VEGETABLES
DE10012395B4 (en) * 2000-03-15 2010-04-29 Abb Research Ltd. Flowmeter
JP5525808B2 (en) * 2009-12-25 2014-06-18 株式会社堀場製作所 Magnetic pressure oxygen analyzer
MY162195A (en) 2010-07-08 2017-05-31 Halliburton Energy Services Inc Method and system of determining constituent components of a fluid sample
WO2015097251A2 (en) * 2013-12-23 2015-07-02 Eric Chevalier Vibrating medical device for minimally invasive procedures
CN103822877B (en) * 2014-02-27 2016-11-02 同济大学 A kind of portable nonlinear optical acoustic imaging system and acousto-optic imaging method
CN109283255B (en) * 2018-08-06 2020-05-22 浙江大学 Detection method of conveying flow pattern in pneumatic conveying process
EP3859307A1 (en) 2020-01-28 2021-08-04 Infineon Technologies AG Light emitting structure, photo-acoustic spectroscopy sensing device, method for operating a photo-acoustic spectroscopy sensing device and apparatus for obtaining an information about a target gas

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3836950A (en) * 1970-03-05 1974-09-17 Trw Inc Acousto-optical multi-constituent flow monitoring method and apparatus
US3646313A (en) * 1970-04-08 1972-02-29 Gilford Instr Labor Inc Temperature controlled flow cell
US3762197A (en) * 1970-09-14 1973-10-02 Phillips Petroleum Co Acoustical detecting apparatus
US3820901A (en) * 1973-03-06 1974-06-28 Bell Telephone Labor Inc Measurement of concentrations of components of a gaseous mixture
US3948345A (en) * 1973-06-15 1976-04-06 Allan Rosencwaig Methods and means for analyzing substances
JPS5459188A (en) * 1977-10-19 1979-05-12 Nec Corp Infrared spectrophotometer apparatus of gas chromatography
US4200399A (en) * 1978-11-20 1980-04-29 General Motors Corporation Resonant optoacoustic spectroscopy apparatus

Also Published As

Publication number Publication date
FR2491623A1 (en) 1982-04-09
CA1186402A (en) 1985-04-30
GB2089041A (en) 1982-06-16
DE3139917C2 (en) 1989-05-24
FR2491623B1 (en) 1985-06-28
DE3139917A1 (en) 1982-06-24
JPS5764145A (en) 1982-04-19
JPH0219894B2 (en) 1990-05-07

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Legal Events

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

Effective date: 19921007