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.
Patent No.:
Date of Patent:
Jan. 16, 2018
Filed:
Sep. 11, 2015
Applicant:
Ngk Spark Plug Co., Ltd., Nagoya-shi, Aichi, JP;
Inventors:
Masao Tsuzuki, Kakamigahara, JP;
Toyohiro Tsukahara, Ichinomiya, JP;
Assignee:
NGK SPARK PLUG CO., LTD., Aichi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 33/00 (2006.01); G01M 15/10 (2006.01);
U.S. Cl.
CPC ...
G01N 33/0006 (2013.01); G01M 15/104 (2013.01); G01M 15/106 (2013.01); G01N 33/0016 (2013.01);
Abstract
A gas sensor apparatus including a gas sensor () which outputs an output value corresponding to the concentration of a specific gas component, and a computation section () which calculates a specific component concentration based on the output value output and a pressure value representing the pressure of the gas. The computation section () includes pressure change rate calculation means (), pressure change rate judgment means (), correction amount calculation means (), and output correction means (). Also disclosed is a concentration measurement method using the gas sensor.