Title:
LIGHT ABSORPTION MEASURING DEVICE FOR ABSORPTION SPECTROMETRY, AND ABSORPTION SPECTROMETRY SYSTEM EMPLOYING SAME
Document Type and Number:
WIPO Patent Application WO/2017/199721
Kind Code:
A1
Abstract:
In order to achieve a light absorption measuring device for absorption spectrometry with which it is possible to monitor the condition of a substance in a minute space at high speed and with high precision on the basis of laser absorption spectrometry, a light absorption measuring device (B) for absorption spectrometry is configured from: a transmission/reception integrated fiber probe (1); a light emitting/receiving mechanism (2) which radiates light from the probe distal end (1x), receives a plurality of beams of reflected light that have been transmitted through a substance to be measured and have returned to the probe and that have different phases, and converts the same into electrical detected signals (Sa) to (Sf); a lock-in amplifier (3) which extracts signals corresponding to absorption of light of a specific wavelength, using the detected signals (Sa) to (Sf) as signals for extraction; and a combining unit (4) which is disposed downstream of the lock-in amplifier (3) and which combines the extracted signals (Sa) to (Sf) together.
Inventors:
KAWASAKI MASAHIRO (JP)
NISHIDA KOSUKE (JP)
UMEKAWA TOYOFUMI (JP)
HONDA SHINICHI (JP)
NISHIDA KOSUKE (JP)
UMEKAWA TOYOFUMI (JP)
HONDA SHINICHI (JP)
Application Number:
PCT/JP2017/016670
Publication Date:
November 23, 2017
Filing Date:
April 27, 2017
Export Citation:
Assignee:
NAT UNIV CORP KYOTO INST TECHNOLOGY (JP)
PLUMTEC CO LTD (JP)
SHINYEI TECH CO LTD (JP)
KAWASAKI MASAHIRO (JP)
PLUMTEC CO LTD (JP)
SHINYEI TECH CO LTD (JP)
KAWASAKI MASAHIRO (JP)
International Classes:
G01N21/3504; G01N21/39
Foreign References:
| JP2005274262A | 2005-10-06 | |||
| JP2012514752A | 2012-06-28 | |||
| JP2006227003A | 2006-08-31 | |||
| JP2011181920A | 2011-09-15 | |||
| JP2013228296A | 2013-11-07 |
Attorney, Agent or Firm:
ONISHI, Masanao (JP)
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