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:
Apr. 12, 2016

Filed:

Jun. 05, 2015
Applicant:

Fuji Electric Co., Ltd., Kawasaki-shi, JP;

Inventors:

Masaya Tabaru, Hino, JP;

Kazuhiro Koizumi, Sagamihara, JP;

Hideyuki Konishi, Hachioji, JP;

Takashi Inui, Hachioji, JP;

Assignee:

FUJI ELECTRIC CO., LTD., Kawasaki-Shi, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 21/3504 (2014.01); G01N 21/39 (2006.01); G01N 21/359 (2014.01); G01N 21/31 (2006.01);
U.S. Cl.
CPC ...
G01N 21/3504 (2013.01); G01N 21/3103 (2013.01); G01N 21/359 (2013.01); G01N 21/39 (2013.01); G01N 2201/0612 (2013.01);
Abstract

Aspects of a laser-type gas analyzer can include a mid-infrared light reception signal processing and computing unit that calculates a gas concentration of the first gas to be measured on the basis of a mid-infrared light reception signal, a near-infrared light reception signal processing and computing unit that detects, at respective times, the gas concentration of the second gas to be measured, water concentration in a space, and alight amount decrement due to dust, on the basis of near-infrared light reception signal. Also included can be a gas concentration correcting unit that corrects the gas concentrations of the first and second gases to be measured using the water concentration and the light amount decrement.


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