JPS5547437A - Light-sound analyzer - Google Patents

Light-sound analyzer

Info

Publication number
JPS5547437A
JPS5547437A JP12058978A JP12058978A JPS5547437A JP S5547437 A JPS5547437 A JP S5547437A JP 12058978 A JP12058978 A JP 12058978A JP 12058978 A JP12058978 A JP 12058978A JP S5547437 A JPS5547437 A JP S5547437A
Authority
JP
Japan
Prior art keywords
sample
light
gas
flow
photosynthesis
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
JP12058978A
Other languages
Japanese (ja)
Other versions
JPS6013457B2 (en
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 JP53120589A priority Critical patent/JPS6013457B2/en
Publication of JPS5547437A publication Critical patent/JPS5547437A/en
Publication of JPS6013457B2 publication Critical patent/JPS6013457B2/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
    • 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 analyze the process of photosynthesis of a sample that has a photochemical reactivity by shining light on the sample intermittently with a fixed frequency and by detecting a flow of gas at this time. CONSTITUTION:A sample 2 to be analyzed is put in the sample room 3 of the analyzer A, the solar light, which is made an intermittent light with a fixed frequency, is thrown to the sample 2. Part of the light energy is converted into heat energy, a gas flow is produced in the gas passage 5. The flow is detected as an AC signal by the thermal system flow meter type sensor 9. When the sample acts a photosynthesis, CO2 absorbed in and O2 discharged from the sample are detected by the CO2 and O2 detecting elements of the gas sensor 11.
JP53120589A 1978-09-30 1978-09-30 photoacoustic analyzer Expired JPS6013457B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53120589A JPS6013457B2 (en) 1978-09-30 1978-09-30 photoacoustic analyzer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53120589A JPS6013457B2 (en) 1978-09-30 1978-09-30 photoacoustic analyzer

Publications (2)

Publication Number Publication Date
JPS5547437A true JPS5547437A (en) 1980-04-03
JPS6013457B2 JPS6013457B2 (en) 1985-04-08

Family

ID=14790003

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53120589A Expired JPS6013457B2 (en) 1978-09-30 1978-09-30 photoacoustic analyzer

Country Status (1)

Country Link
JP (1) JPS6013457B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4740086A (en) * 1984-02-07 1988-04-26 Oskar Oehler Apparatus for the photoacoustic detection of gases
WO2012040439A3 (en) * 2010-09-23 2012-06-14 Li-Cor, Inc. Gas exchange system flow configuration
US8610072B2 (en) 2010-09-23 2013-12-17 Li-Cor, Inc. Gas exchange system flow configuration
CN103954562A (en) * 2014-04-09 2014-07-30 福建农林大学 Photosynthesis machine based on optical fiber sensor
US8910506B2 (en) 2010-09-23 2014-12-16 Li-Cor, Inc. Gas exchange system flow configuration

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62206441A (en) * 1986-03-06 1987-09-10 Fuji Electric Co Ltd Threshold current type gas sensor

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4740086A (en) * 1984-02-07 1988-04-26 Oskar Oehler Apparatus for the photoacoustic detection of gases
WO2012040439A3 (en) * 2010-09-23 2012-06-14 Li-Cor, Inc. Gas exchange system flow configuration
US8610072B2 (en) 2010-09-23 2013-12-17 Li-Cor, Inc. Gas exchange system flow configuration
US8692202B2 (en) 2010-09-23 2014-04-08 Li-Cor, Inc. Gas exchange system flow configuration with thermally insulated sample chamber
US8910506B2 (en) 2010-09-23 2014-12-16 Li-Cor, Inc. Gas exchange system flow configuration
US9482653B2 (en) 2010-09-23 2016-11-01 Li-Cor, Inc. Gas exchange system flow configuration
CN103954562A (en) * 2014-04-09 2014-07-30 福建农林大学 Photosynthesis machine based on optical fiber sensor

Also Published As

Publication number Publication date
JPS6013457B2 (en) 1985-04-08

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