GB2089041B - A flow type photoacoustic detector - Google Patents
A flow type photoacoustic detectorInfo
- 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
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)
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)
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 |
WO2012005725A1 (en) | 2010-07-08 | 2012-01-12 | Halliburton Energy Services, Inc. | Method and system of determining constituent components of a fluid sample |
WO2015097255A2 (en) * | 2013-12-23 | 2015-07-02 | Eric Chevalier | A versatile vascular access device |
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)
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 |
-
1980
- 1980-10-07 JP JP55140031A patent/JPS5764145A/en active Granted
-
1981
- 1981-10-07 DE DE19813139917 patent/DE3139917A1/en active Granted
- 1981-10-07 GB GB8130315A patent/GB2089041B/en not_active Expired
- 1981-10-07 CA CA000387513A patent/CA1186402A/en not_active Expired
- 1981-10-07 FR FR8118854A patent/FR2491623B1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CA1186402A (en) | 1985-04-30 |
FR2491623A1 (en) | 1982-04-09 |
GB2089041A (en) | 1982-06-16 |
JPS5764145A (en) | 1982-04-19 |
JPH0219894B2 (en) | 1990-05-07 |
DE3139917A1 (en) | 1982-06-24 |
FR2491623B1 (en) | 1985-06-28 |
DE3139917C2 (en) | 1989-05-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19921007 |