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:
May. 15, 2018
Filed:
Feb. 01, 2013
Applicant:
Power Electronic Measurements Limited, Gloucester House, Wellington Street, Long Eaton, Nottingham, Nottinghamshire, GB;
Inventors:
William Frederick Ray, Long Eaton, GB;
Christopher Rene Hewson, Beeston, GB;
Joanne Marie Aberdeen, Beeston, GB;
Assignee:
Power Electronic Measurements Limited, Long Eaton, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 15/18 (2006.01); G01R 19/00 (2006.01); G01R 19/32 (2006.01);
U.S. Cl.
CPC ...
G01R 15/181 (2013.01); G01R 19/0092 (2013.01); G01R 19/32 (2013.01);
Abstract
A temperature compensated current measurement device comprises a Rogowski coil having a terminating impedance arranged to adjust the attenuation of the coil to balance changes in coil sensitivity so that the output voltage indicative of measured current remains substantially unchanged, the terminating impedance having different values above and below a threshold frequency.