METHOD FOR MEASURING OPTICAL SPECTRUM AND DEVICE FOR MEASURING SAME

WIPO Patent Application WO/2022/196486

A1

The present invention provides a measurement method, as well as a device therefor, that makes it possible to measure an optical spectrum with high sensitivity, high accuracy, and stability even for a solution containing bubbles, without being affected by the generation or growth of the bubbles. The device is used to provide a cell with a solution having particles of a diffuse reflecting material added thereto and to measure the optical spectrum of the solution. The device includes: a rotary mechanism that performs rotational stirring about a rotation axis so as to form a dispersed flow of the particles of the diffuse reflecting material along an optical window of the cell; and an optical system that provides incident light through the optical window, that acquires diffuse reflection light scattered by the particles of the diffuse reflecting material, and that measures the optical spectrum thereof. With this device, particles of a diffuse reflecting material are added to a solution, and rotational stirring is performed about the rotation axis so as to form a dispersed flow of the particles of the diffuse reflecting material along the optical window of the cell. Incident light is provided through the optical window, diffuse reflection light scattering from the particles of the diffuse reflecting material is acquired, and the optical spectrum thereof is measured.

KAWANAMI HAJIME (JP)
KODAIRA TETSUYA (JP)

PCT/JP2022/010262

September 22, 2022

March 09, 2022

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AIST (JP)

G01N21/27; G01N21/3577

WO2011004781A1

2011-01-13

JP2015057591A	2015-03-26
JPH0755697A	1995-03-03
JP2001349819A	2001-12-21
JPH0989657A	1997-04-04
JPS5246787U	1977-04-02

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