JPS5639444A - Gas analyzer - Google Patents

Gas analyzer

Info

Publication number
JPS5639444A
JPS5639444A JP11534779A JP11534779A JPS5639444A JP S5639444 A JPS5639444 A JP S5639444A JP 11534779 A JP11534779 A JP 11534779A JP 11534779 A JP11534779 A JP 11534779A JP S5639444 A JPS5639444 A JP S5639444A
Authority
JP
Japan
Prior art keywords
light
cell
gas
light source
measuring
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
JP11534779A
Other languages
Japanese (ja)
Inventor
Kimio Miyatake
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.)
Horiba Ltd
Original Assignee
Horiba 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 Horiba Ltd filed Critical Horiba Ltd
Priority to JP11534779A priority Critical patent/JPS5639444A/en
Publication of JPS5639444A publication Critical patent/JPS5639444A/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
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/37—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using pneumatic detection

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (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)

Abstract

PURPOSE:To improve detection sensitivity of nondispersion type infrared ray gas analyzer by arranging for the measuring cell and comparison cell installed between the light source and detector to be rotated by means of the motor. CONSTITUTION:Beam from the light source 1 and 1' passes through the measuring cell 12 and comparison cell 13 into light-receiving room 5 and 5' and infrared rays are absorbed into gas injected in the light-receiving room. Pressure difference arising in the light-receiving rooms 5 and 5' is detected by the condenser/microphone type detectors 6 and 7 and the concentration is indicated through the amplifier on the indicator 22. The measuring cell 12 and comparison cell are rotated by the motor 11 which is supported through bearings 9 and 10 by the light source block 2 and detector block 4. N2 gas which absorbs no infrared rays is introduced into the comparison cell 13, while measuring gas into the measuring cell 12 through guide passage 14 and discharge passage 15. With the rotation of both cells 12 and 13, pressure variations of light-receiving chambers 5 and 5' are reversed in phase and pressure difference is twice as much as that of the conventional stationary type device, thereby enhancing detection sensitivity.
JP11534779A 1979-09-08 1979-09-08 Gas analyzer Pending JPS5639444A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11534779A JPS5639444A (en) 1979-09-08 1979-09-08 Gas analyzer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11534779A JPS5639444A (en) 1979-09-08 1979-09-08 Gas analyzer

Publications (1)

Publication Number Publication Date
JPS5639444A true JPS5639444A (en) 1981-04-15

Family

ID=14660271

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11534779A Pending JPS5639444A (en) 1979-09-08 1979-09-08 Gas analyzer

Country Status (1)

Country Link
JP (1) JPS5639444A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61292109A (en) * 1985-04-11 1986-12-22 オマ−ル・エム・セザ−マン Coupler optically coupling pair of optical fiber in relationship in which end section thereof are butted
JPS6347313U (en) * 1986-09-12 1988-03-31

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61292109A (en) * 1985-04-11 1986-12-22 オマ−ル・エム・セザ−マン Coupler optically coupling pair of optical fiber in relationship in which end section thereof are butted
JPS6347313U (en) * 1986-09-12 1988-03-31

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