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. 31, 2017
Filed:
Aug. 14, 2013
Applicant:
Ultra Electronics Limited, Greenford, Middlesex, GB;
Inventors:
Assignee:
Ultra Electronics Limited, Greenford, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D 5/24 (2006.01); G01D 3/08 (2006.01); G01D 5/20 (2006.01); H03K 17/95 (2006.01); G01B 7/00 (2006.01); G01B 7/14 (2006.01); G01R 31/28 (2006.01);
U.S. Cl.
CPC ...
G01D 5/24 (2013.01); G01B 7/003 (2013.01); G01B 7/14 (2013.01); G01D 3/08 (2013.01); G01D 5/20 (2013.01); H03K 17/9502 (2013.01); G01R 31/2829 (2013.01);
Abstract
The present invention generally relates to proximity sensor monitors and proximity monitor systems incorporating proximity sensor monitors. A proximity sensor monitor measures the impedance or other electrical characteristics of a proximity sensor component to determine the presence of a target. The proximity sensor monitor performs this measurement independently of a separate proximity sensor. The proximity sensor monitor is configured to compensate for differences between the measurement frequency of the proximity sensor monitor and the driving frequency of the proximity sensor.