JPS6484133A - Opto-acoustic special device - Google Patents

Opto-acoustic special device

Info

Publication number
JPS6484133A
JPS6484133A JP62243477A JP24347787A JPS6484133A JP S6484133 A JPS6484133 A JP S6484133A JP 62243477 A JP62243477 A JP 62243477A JP 24347787 A JP24347787 A JP 24347787A JP S6484133 A JPS6484133 A JP S6484133A
Authority
JP
Japan
Prior art keywords
signal
opto
processor
cell
acoustic
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.)
Granted
Application number
JP62243477A
Other languages
Japanese (ja)
Other versions
JPH0621861B2 (en
Inventor
Takehiko Kitamori
Kazumichi Suzuki
Shiro Sawada
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP62243477A priority Critical patent/JPH0621861B2/en
Priority to DE19883832906 priority patent/DE3832906A1/en
Publication of JPS6484133A publication Critical patent/JPS6484133A/en
Publication of JPH0621861B2 publication Critical patent/JPH0621861B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Abstract

PURPOSE:To simplify an internal structure and to reduce the size of a device by providing a cell, piezo-electric element and signal processor, etc. CONSTITUTION:Intensity-modulated light is projected as excitation light to the cell 2. An opto-acoustic signal is generated in the cell is 2 into which a sample is introduced, as the cell is irradiated with the excitation light. This signal is converted by the piezo-electric element 3 to an electric signal which is inputted to the signal processor 5. The opto-acoustic signal is phase-detected and only the opto-acoustic signal is restored from a noise field and is amplified in the processor 5. On the other hand, the feedback current of an automatic output control circuit taken into the processor 5 in monitored and is outputted as a monitor signal to an arithmetic unit 6. The opto-acoutsic signal detected and amplified by the processor 5 is standardized and corrected by referencing the monitor signal of the laser output and is recorded 7. The internal structure is thus simplified and and the device is reduced in size.
JP62243477A 1987-09-28 1987-09-28 Photoacoustic spectroscopy Expired - Lifetime JPH0621861B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP62243477A JPH0621861B2 (en) 1987-09-28 1987-09-28 Photoacoustic spectroscopy
DE19883832906 DE3832906A1 (en) 1987-09-28 1988-09-28 Photo-acoustic spectrometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62243477A JPH0621861B2 (en) 1987-09-28 1987-09-28 Photoacoustic spectroscopy

Publications (2)

Publication Number Publication Date
JPS6484133A true JPS6484133A (en) 1989-03-29
JPH0621861B2 JPH0621861B2 (en) 1994-03-23

Family

ID=17104470

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62243477A Expired - Lifetime JPH0621861B2 (en) 1987-09-28 1987-09-28 Photoacoustic spectroscopy

Country Status (2)

Country Link
JP (1) JPH0621861B2 (en)
DE (1) DE3832906A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011053877A (en) * 2009-09-01 2011-03-17 Giga-Byte Technology Co Ltd Control method and control system thereof
WO2011052061A1 (en) * 2009-10-29 2011-05-05 キヤノン株式会社 Photo-acoustic device
US11613911B2 (en) 2012-12-19 2023-03-28 Lock Ii, Llc Device and methods for preventing unwanted access to a locked enclosure

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4130639A1 (en) * 1991-09-14 1993-03-18 Reinhard Dr Niessner METHOD FOR THE QUANTITATIVE AND QUALITATIVE DETECTION OF HYDROCARBON-CARBON PARTICLES IN GASES
EP0798552B1 (en) * 1996-03-25 2004-06-02 Siemens Building Technologies AG Photoacoustic gas sensor
EP0801296A1 (en) * 1996-03-25 1997-10-15 Cerberus Ag Photoacoustic gas sensor
DE19818192A1 (en) 1998-04-23 1999-10-28 Abb Research Ltd Eximer lamp excited sensor for measuring the quantity of oil remaining in water recovered from a sub-sea separation tank
FR2815122B1 (en) * 2000-10-06 2003-02-07 Univ Reims Champagne Ardenne GAS DETECTION DEVICE
AU2002307967A1 (en) * 2002-04-03 2003-10-13 Universite De Reims Champagne-Ardenne Gas detection device
US8040516B2 (en) 2006-11-10 2011-10-18 Koninklijke Philips Electronics N.V. Oscillator element for photo acoustic detector
US9841375B2 (en) 2014-08-01 2017-12-12 Newport Corporation Coherently receiving simultaneous optical-based electrical signals

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61254834A (en) * 1985-05-08 1986-11-12 Matsushita Electric Ind Co Ltd Scanning type photo-acoustic microscope device
JPS6238345A (en) * 1985-08-14 1987-02-19 Hitachi Ltd Method and instrument for analyzing solid particles
JPS62129742A (en) * 1985-11-30 1987-06-12 Kazuo Imaeda Photoacoustic measurement

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4303343A (en) * 1980-02-29 1981-12-01 Bell Telephone Laboratories, Incorporated Optoacoustic spectroscopy of condensed matter in bulk form

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61254834A (en) * 1985-05-08 1986-11-12 Matsushita Electric Ind Co Ltd Scanning type photo-acoustic microscope device
JPS6238345A (en) * 1985-08-14 1987-02-19 Hitachi Ltd Method and instrument for analyzing solid particles
JPS62129742A (en) * 1985-11-30 1987-06-12 Kazuo Imaeda Photoacoustic measurement

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011053877A (en) * 2009-09-01 2011-03-17 Giga-Byte Technology Co Ltd Control method and control system thereof
WO2011052061A1 (en) * 2009-10-29 2011-05-05 キヤノン株式会社 Photo-acoustic device
CN102596049A (en) * 2009-10-29 2012-07-18 佳能株式会社 Photo-acoustic device
US9226662B2 (en) 2009-10-29 2016-01-05 Canon Kabushiki Kaisha Photoacoustic apparatus
US11613911B2 (en) 2012-12-19 2023-03-28 Lock Ii, Llc Device and methods for preventing unwanted access to a locked enclosure

Also Published As

Publication number Publication date
DE3832906A1 (en) 1989-04-13
DE3832906C2 (en) 1991-04-25
JPH0621861B2 (en) 1994-03-23

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