The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 07, 2018

Filed:

Apr. 01, 2015
Applicant:

Kurita Water Industries Ltd., Tokyo, JP;

Inventors:

Shintarou Mori, Tokyo, JP;

Yukimasa Shimura, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 33/18 (2006.01); G01N 21/59 (2006.01); G01N 27/06 (2006.01);
U.S. Cl.
CPC ...
G01N 33/1853 (2013.01); G01N 21/59 (2013.01); G01N 27/06 (2013.01); G01N 33/182 (2013.01);
Abstract

Provided are a concentration-factor measurement device and method for accurately calculating a concentration factor of circulating water, and a method for measuring a water-quality index value of the circulating water. The concentration-factor measurement device includes a light-absorbance measurement unit () for measuring absorbance by irradiating each of cells (A-C) with light, and an electrode measurement unit () equipped with electrodes () that are inserted into a water sample in a container (). For each item of water quality, the device calculates a concentration factor on the basis of a measured value measured when the water sample (W) is the circulating water, and a measured value measured when the water sample (W) is makeup water. A plurality of concentration factors are calculated on the basis of the measured values for plural items of water quality. Hence an accurate concentration factor can be obtained.


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