PARTICLE SIZE DISTRIBUTION MEASURING DEVICE AND PROGRAM FOR PARTICLE SIZE DISTRIBUTION MEASURING DEVICE

Title:

PARTICLE SIZE DISTRIBUTION MEASURING DEVICE AND PROGRAM FOR PARTICLE SIZE DISTRIBUTION MEASURING DEVICE

Document Type and Number:

WIPO Patent Application WO/2019/230628

Kind Code:

A1

Abstract:

To enable a particle size distribution that is to be measured to be measured accurately, even if particles that are not to be measured but have a similar shape to the particles to be measured are mixed therewith, this particle size distribution measuring device is provided with: an image processing unit 41 which accepts image data obtained by capturing an image of a particle group in which first particles and second particles of a different type to the first particles are mixed, and in which at least the first particles are translucent; and a particle identifying unit 42 for identifying whether a particle captured in the image is a first particle or a second particle, on the basis of light and dark regions that appear as a result of refraction of light passing through the particles.

Inventors:

AKIYAMA HISASHI (JP)
MORI TETSUYA (JP)
NAGAOKA EIICHI (JP)

Application Number:

PCT/JP2019/020835

Publication Date:

December 05, 2019

Filing Date:

May 27, 2019

Export Citation:

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Assignee:

HORIBA LTD (JP)

International Classes:

G01N15/02; G06V10/141; G06V10/143; G06V10/56; G06V10/764

Foreign References:

JP2018004450A	2018-01-11
JP2009031191A	2009-02-12
JP2012068802A	2012-04-05
JP2010223613A	2010-10-07
JP2014163771A	2014-09-08
JP2014503794A	2014-02-13
US20110157351A1	2011-06-30
JP2018004450A	2018-01-11

Other References: