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Title:
SPECTROSCOPIC ANALYSIS DEVICE, SPECTROSCOPIC ANALYSIS METHOD, METHOD FOR MANUFACTURING STEEL STRIP, AND STEEL STRIP QUALITY ASSURANCE METHOD
Document Type and Number:
WIPO Patent Application WO/2019/142569
Kind Code:
A1
Abstract:
A light receiving unit 3 is provided with a polarized light splitting unit 32 which splits reflected light into S polarized light and P polarized light, an S polarized light detecting unit 34 which detects the S polarized light split by the polarized light splitting unit 32 and outputs an electrical signal indicting the intensity of the detected S polarized light to an output unit 4, and a P polarized light detecting unit 33 which detects the P polarized light split by the polarized light splitting unit 32 and outputs an electrical signal indicting the intensity of the detected P polarized light to the output unit 4. The output unit 4 uses the electrical signals output from the S polarized light detecting unit 34 and the P polarized light detecting unit 33 to calculate a light absorbency from the ratio of the intensities of the S polarized light and the P polarized light, and uses the light absorbency intensity at an arbitrarily defined wavenumber to calculate a composition and/or a composition ratio of the surface of an object to be measured P.

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Inventors:
NISHIZAWA YUJI (JP)
TSUJI SHOTA (JP)
KATO KAHO (JP)
Application Number:
PCT/JP2018/046266
Publication Date:
July 25, 2019
Filing Date:
December 17, 2018
Export Citation:
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Assignee:
JFE STEEL CORP (JP)
International Classes:
G01N21/21; G01N21/3563
Domestic Patent References:
WO2017055895A12017-04-06
Foreign References:
JP3637192B22005-04-13
JPH07311312A1995-11-28
JP2006091001A2006-04-06
JPH03108639A1991-05-08
US5835220A1998-11-10
JPS637192B21988-02-15
Other References:
See also references of EP 3742152A4
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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