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JPS5510535A - Photo-acoustic analyzer - Google Patents

Photo-acoustic analyzer

Info

Publication number
JPS5510535A
JPS5510535A JP8342578A JP8342578A JPS5510535A JP S5510535 A JPS5510535 A JP S5510535A JP 8342578 A JP8342578 A JP 8342578A JP 8342578 A JP8342578 A JP 8342578A JP S5510535 A JPS5510535 A JP S5510535A
Authority
JP
Japan
Prior art keywords
room
samples
sample
optical energy
gas
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
JP8342578A
Other languages
Japanese (ja)
Inventor
Atsuo Watanabe
Masahiro Uno
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric 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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP8342578A priority Critical patent/JPS5510535A/en
Priority to DE19792927432 priority patent/DE2927432A1/en
Publication of JPS5510535A publication Critical patent/JPS5510535A/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
    • G01N21/1702—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

Landscapes

  • Physics & Mathematics (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 Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

PURPOSE:To ensure a high-accuracy detection of the minute difference between several units of samples by piling the reference room upon the sample room containing several samples in it and with linkage between these two rooms, irradiating the same amount of the optical energy to each sample alternately and intermittently and then detecting at the linkage part the movement of the gas caused by irradiation of the optical energy. CONSTITUTION:Samples 2 and 2' to be analyzed are provided into sample room 1, and light transmission window 3 is provided at the top part of the room. Reference room 6 containing window 3' is piled upon room 1, and both rooms are linked to each other via path 7 to form a sealed container. This contained is filled up with the air, nitrogen or the like. After this, optical energy B1 and B2 featuring the same wavelength and same intensity are irradiated to samples 2 and 2' in room 1 alternately and intermittently through window 3 and 3' plus room 6 respectively. As a result, the gas in the container is moved, and this movement of the gas is detected by thermal flow meter type detector element 8 provided at path 7. Thus, the difference between the samples can be detected after simultaneous analysis of each sample under the same conditions and based on the resistance variation of the detector element.
JP8342578A 1978-07-08 1978-07-08 Photo-acoustic analyzer Pending JPS5510535A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP8342578A JPS5510535A (en) 1978-07-08 1978-07-08 Photo-acoustic analyzer
DE19792927432 DE2927432A1 (en) 1978-07-08 1979-07-06 Photo-acoustic spectrometer for solid and liq. samples - has connected gas-filled reference and sample chambers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8342578A JPS5510535A (en) 1978-07-08 1978-07-08 Photo-acoustic analyzer

Publications (1)

Publication Number Publication Date
JPS5510535A true JPS5510535A (en) 1980-01-25

Family

ID=13802073

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8342578A Pending JPS5510535A (en) 1978-07-08 1978-07-08 Photo-acoustic analyzer

Country Status (1)

Country Link
JP (1) JPS5510535A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6097829A (en) * 1983-11-02 1985-05-31 Unitika Ltd Drawing method of plastic film
JPH0776427A (en) * 1993-09-07 1995-03-20 Alps Electric Co Ltd Paper feeding cassette
US6227036B1 (en) 1998-10-28 2001-05-08 The Regents Of The University Of Michigan Multiple microphone photoacoustic leak detection and localization system and method
WO2003042669A1 (en) * 2001-11-13 2003-05-22 Battelle Memorial Institute Array-based photoacoustic spectroscopy
US6873415B2 (en) 2001-11-13 2005-03-29 Battelle Memorial Institute Photoacoustic spectroscopy sample array vessel and photoacoustic spectroscopy method for using the same
US6999174B2 (en) 2001-11-13 2006-02-14 Battelle Memorial Institute Photoacoustic spectroscopy sample array vessels and photoacoustic spectroscopy methods for using the same

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6097829A (en) * 1983-11-02 1985-05-31 Unitika Ltd Drawing method of plastic film
JPH0776427A (en) * 1993-09-07 1995-03-20 Alps Electric Co Ltd Paper feeding cassette
US6227036B1 (en) 1998-10-28 2001-05-08 The Regents Of The University Of Michigan Multiple microphone photoacoustic leak detection and localization system and method
WO2003042669A1 (en) * 2001-11-13 2003-05-22 Battelle Memorial Institute Array-based photoacoustic spectroscopy
US6870626B2 (en) 2001-11-13 2005-03-22 Battelle Memorial Institute Array-based photoacoustic spectroscopy
US6873415B2 (en) 2001-11-13 2005-03-29 Battelle Memorial Institute Photoacoustic spectroscopy sample array vessel and photoacoustic spectroscopy method for using the same
US6999174B2 (en) 2001-11-13 2006-02-14 Battelle Memorial Institute Photoacoustic spectroscopy sample array vessels and photoacoustic spectroscopy methods for using the same

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