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:
May. 17, 2022

Filed:

Oct. 25, 2016
Applicants:

Pioneer Corporation, Tokyo, JP;

Nikkiso Company Limited, Tokyo, JP;

Inventors:

Kiyoshi Tateishi, Saitama, JP;

Wataru Onodera, Saitama, JP;

Tomoya Murakami, Shizuoka, JP;

Akari Agata, Shizuoka, JP;

Genki Adachi, Shizuoka, JP;

Assignees:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 21/53 (2006.01); G01N 21/85 (2006.01); G01F 1/00 (2022.01);
U.S. Cl.
CPC ...
G01N 21/53 (2013.01); G01F 1/00 (2013.01); G01N 21/85 (2013.01);
Abstract

A fluid measuring apparatus is provided with: an irradiating device configured to irradiate a fluid with light; a light receiving device configured to receive light scattered by the fluid; a detecting device configured to detect a backflow of the fluid on the basis of a received light signal of the light receiving device; and a calculating device configured to calculate estimated concentration information indicating a concentration of the fluid, on the basis of a detection result of the detecting device and the received light signal of the light receiving device. By this, even if the backflow temporarily occurs in the fluid, the fluid concentration can be accurately measured.


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