JPS5515022A - Photo-acoustic analizer - Google Patents

Photo-acoustic analizer

Info

Publication number
JPS5515022A
JPS5515022A JP8753578A JP8753578A JPS5515022A JP S5515022 A JPS5515022 A JP S5515022A JP 8753578 A JP8753578 A JP 8753578A JP 8753578 A JP8753578 A JP 8753578A JP S5515022 A JPS5515022 A JP S5515022A
Authority
JP
Japan
Prior art keywords
samples
energy
optical energy
analyzing
thermal
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
JP8753578A
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 JP8753578A priority Critical patent/JPS5515022A/en
Priority to DE19792927432 priority patent/DE2927432A1/en
Publication of JPS5515022A publication Critical patent/JPS5515022A/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 Analysing Materials By Optical Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

PURPOSE:To analyze two samples simultaneously under the same condition to detect accurately the difference between two samples by detecting thermal energy, which is generated when optical energy is irradiated to an object, as thermal expansion of gas around the object and analyzing the object. CONSTITUTION:In analysis, analyzer A irradiates optical energy B1 an B2, which have the same strength same strength and wave length, to samples 2 and 2' in sample room 1 through light transmission windows 3 and 3' simultaneously and intermittently. A part of optical energy is absorbed by samples 2 and 2' and is converted to thermal energy. This thermal energy is detected as thermal expansion of gas around samples 2 and 2', thereby analyzing samples 2 and 2'.
JP8753578A 1978-07-08 1978-07-18 Photo-acoustic analizer Pending JPS5515022A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP8753578A JPS5515022A (en) 1978-07-18 1978-07-18 Photo-acoustic analizer
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
JP8753578A JPS5515022A (en) 1978-07-18 1978-07-18 Photo-acoustic analizer

Publications (1)

Publication Number Publication Date
JPS5515022A true JPS5515022A (en) 1980-02-01

Family

ID=13917672

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8753578A Pending JPS5515022A (en) 1978-07-08 1978-07-18 Photo-acoustic analizer

Country Status (1)

Country Link
JP (1) JPS5515022A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

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