JPS5729934A - Infrared ray spectroscopic analysing method - Google Patents

Infrared ray spectroscopic analysing method

Info

Publication number
JPS5729934A
JPS5729934A JP10593680A JP10593680A JPS5729934A JP S5729934 A JPS5729934 A JP S5729934A JP 10593680 A JP10593680 A JP 10593680A JP 10593680 A JP10593680 A JP 10593680A JP S5729934 A JPS5729934 A JP S5729934A
Authority
JP
Japan
Prior art keywords
current
value
peak
inputted
scanned
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
JP10593680A
Other languages
Japanese (ja)
Other versions
JPS6140336B2 (en
Inventor
Hirobumi Kashiwara
Tadatami Mori
Masami Tajima
Takayasu Fukuda
Yoshio Matsuura
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP10593680A priority Critical patent/JPS5729934A/en
Publication of JPS5729934A publication Critical patent/JPS5729934A/en
Publication of JPS6140336B2 publication Critical patent/JPS6140336B2/ja
Granted 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
    • G01N21/39—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using tunable lasers

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Optics & Photonics (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 make the plural shutter mechanisms and control units unnecessary and to reduce the cost of apparatus, by executing a current seanning only one side peak width of minute absorption characteristics by driving current and always correcting its peak value at a specific position of the current scanning extent by a microcomputer. CONSTITUTION:An electric signal photoconverted by a detector 6 is inputted in lockin amplifiers LA1, LA2 and a value P of absorption characteristics and value P' of differential absorption characteristics are outputted. These values P and P' are inputted in a microcomputer 7 through A/D converters 15a, 15b and are stored in a storage device 9 conducting a division operation. On the one hand, the laser 5 is scanned by driving current in a width of current value showing P'/P a peak and the current corresponding to the peak position of divided value of P'/P is fetched as a control signal. Then, the signal is inputted in a power source 8 from an adder 19 through a converter 18 and the maximum and minimum values of scanned current are corrected so as to be the center of the current extent to be scanned.
JP10593680A 1980-07-31 1980-07-31 Infrared ray spectroscopic analysing method Granted JPS5729934A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10593680A JPS5729934A (en) 1980-07-31 1980-07-31 Infrared ray spectroscopic analysing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10593680A JPS5729934A (en) 1980-07-31 1980-07-31 Infrared ray spectroscopic analysing method

Publications (2)

Publication Number Publication Date
JPS5729934A true JPS5729934A (en) 1982-02-18
JPS6140336B2 JPS6140336B2 (en) 1986-09-09

Family

ID=14420727

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10593680A Granted JPS5729934A (en) 1980-07-31 1980-07-31 Infrared ray spectroscopic analysing method

Country Status (1)

Country Link
JP (1) JPS5729934A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006030161A (en) * 2004-07-20 2006-02-02 Martin Lehmann Method for monitoring pressure of gas kind, and device for monitoring

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006030161A (en) * 2004-07-20 2006-02-02 Martin Lehmann Method for monitoring pressure of gas kind, and device for monitoring

Also Published As

Publication number Publication date
JPS6140336B2 (en) 1986-09-09

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