JPS56114746A - Direct analyzing method for molten metal with pulse laser light - Google Patents

Direct analyzing method for molten metal with pulse laser light

Info

Publication number
JPS56114746A
JPS56114746A JP1593680A JP1593680A JPS56114746A JP S56114746 A JPS56114746 A JP S56114746A JP 1593680 A JP1593680 A JP 1593680A JP 1593680 A JP1593680 A JP 1593680A JP S56114746 A JPS56114746 A JP S56114746A
Authority
JP
Japan
Prior art keywords
spectral
molten metal
steel
intensity
analysis
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
JP1593680A
Other languages
Japanese (ja)
Inventor
Kozo Sumiyama
Zenji Ohashi
Hisashi Kishitaka
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.)
JFE Steel Corp
Original Assignee
Kawasaki Steel Corp
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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP1593680A priority Critical patent/JPS56114746A/en
Publication of JPS56114746A publication Critical patent/JPS56114746A/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
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/71—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited
    • G01N21/718—Laser microanalysis, i.e. with formation of sample plasma

Landscapes

  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)

Abstract

PURPOSE:To make a direct analysis of molten metal with high precision by automatically correcting an influence of the background through a vidicon, electronic computer, etc., when measuring the intensity of spectral beams by spectral diffraction of plasma corresponding to laser pulse irradiation. CONSTITUTION:When laser pulses generated from laser generator 4 is irradiated, molten steel 2, etc., are excited by plasma and excited light is separated into spectral components by spectrometer 7. Spectral beam images of respective elements of this steel 2 are controlled by controller 17 synchronizing with generator 4 and then processed by optical multichannel analyzers OMA... provided for each spectral beam, and the integral intensity of photodetection is determined in a near wavelength range including the center wavelength by fine wavelength sections. Then, an influence of the background is automatically corrected through the statistical analysis of electronic computer 18 and the analysis result based upon the intensity of the spectral beam that corresponds to the element of steel 2 is displayed on display device 19, so that a direct analysis of the molten metal can be made with high precision.
JP1593680A 1980-02-14 1980-02-14 Direct analyzing method for molten metal with pulse laser light Pending JPS56114746A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1593680A JPS56114746A (en) 1980-02-14 1980-02-14 Direct analyzing method for molten metal with pulse laser light

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1593680A JPS56114746A (en) 1980-02-14 1980-02-14 Direct analyzing method for molten metal with pulse laser light

Publications (1)

Publication Number Publication Date
JPS56114746A true JPS56114746A (en) 1981-09-09

Family

ID=11902643

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1593680A Pending JPS56114746A (en) 1980-02-14 1980-02-14 Direct analyzing method for molten metal with pulse laser light

Country Status (1)

Country Link
JP (1) JPS56114746A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6186636A (en) * 1984-10-05 1986-05-02 Kawasaki Steel Corp Emission spectrochemical analysis method of steel using laser
JPH02242140A (en) * 1989-03-15 1990-09-26 Hitachi Ltd Breakdown spectral analysis method and apparatus
JPH04507136A (en) * 1989-04-21 1992-12-10 リーハイ　ユニヴァースティ Transient spectrophotometry and equipment for in-process analysis of molten metals
CN111221028A (en) * 2019-12-04 2020-06-02 中国工程物理研究院材料研究所 Spectral line detection method and device, spectral line detector and spectral line detection system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3588252A (en) * 1969-09-17 1971-06-28 Baird Atomic Inc Background suppression system for optical spectrometer
JPS5056994A (en) * 1973-09-14 1975-05-19
JPS516147U (en) * 1974-07-03 1976-01-17
JPS5180277A (en) * 1975-01-06 1976-07-13 Kogyo Gijutsuin KEIKOSUPEKUTORUBUNPUJIDOKOSOKUDOSOKUTEISOCHI
JPS5425436A (en) * 1977-07-27 1979-02-26 Shin Kobe Electric Machinery Lead storage battery

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3588252A (en) * 1969-09-17 1971-06-28 Baird Atomic Inc Background suppression system for optical spectrometer
JPS5056994A (en) * 1973-09-14 1975-05-19
JPS516147U (en) * 1974-07-03 1976-01-17
JPS5180277A (en) * 1975-01-06 1976-07-13 Kogyo Gijutsuin KEIKOSUPEKUTORUBUNPUJIDOKOSOKUDOSOKUTEISOCHI
JPS5425436A (en) * 1977-07-27 1979-02-26 Shin Kobe Electric Machinery Lead storage battery

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6186636A (en) * 1984-10-05 1986-05-02 Kawasaki Steel Corp Emission spectrochemical analysis method of steel using laser
JPH02242140A (en) * 1989-03-15 1990-09-26 Hitachi Ltd Breakdown spectral analysis method and apparatus
JPH04507136A (en) * 1989-04-21 1992-12-10 リーハイ　ユニヴァースティ Transient spectrophotometry and equipment for in-process analysis of molten metals
CN111221028A (en) * 2019-12-04 2020-06-02 中国工程物理研究院材料研究所 Spectral line detection method and device, spectral line detector and spectral line detection system

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