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:
Nov. 19, 2013
Filed:
Jan. 18, 2011
Applicants:
Jari Pekola, Vantaa, FI;
Tapio Haring, Kuopio, FI;
Petri Mäki-ontto, Espoo, FI;
Inventors:
Assignee:
ABB Oy, Helsinki, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 27/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present disclosure relates to a measuring bearing currents in an electrical machine. According to exemplary embodiments, radio frequency signals that are generated by electric discharges are detected by an antenna near the bearing. A synchronizing signal is combined with the origin of the bearing current and signal triggered by the synchronizing signal is measured.