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:
Oct. 08, 2019
Filed:
Sep. 25, 2017
Applicant:
Ngk Spark Plug Co., Ltd., Nagoya, JP;
Inventors:
Assignee:
NGK Spark Plug Co., LTD., Nagoya, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 27/68 (2006.01); F01N 11/00 (2006.01); F02D 41/14 (2006.01); F02D 41/22 (2006.01); G01N 15/06 (2006.01); G01N 15/00 (2006.01); F02P 9/00 (2006.01);
U.S. Cl.
CPC ...
G01N 27/68 (2013.01); F01N 11/00 (2013.01); F02D 41/1466 (2013.01); F02D 41/222 (2013.01); G01N 15/0656 (2013.01); F01N 2560/05 (2013.01); F02P 9/007 (2013.01); G01N 2015/0046 (2013.01); Y02T 10/40 (2013.01); Y02T 10/47 (2013.01);
Abstract
A particulate measurement apparatus comprises a control section, which provisionally determines in an anomaly determination process that a corona core wire is in a short anomaly state when a linear voltage is equal to or lower than a particular voltage value and increments a sensor anomaly counter CNS or a chassis anomaly counter. The control section determines that the corona core wire is in a short anomaly state when the count value of one of the anomaly counters is equal to or greater than a determination threshold.