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:
Feb. 19, 2002
Filed:
Apr. 14, 1999
Applicant:
Inventor:
Honor Powrie, Southampton, GB;
Assignee:
Stewart Hughes Limited, East Leigh, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01M 1/500 ;
U.S. Cl.
CPC ...
G01M 1/500 ;
Abstract
One or more electrostatic sensors and a tacho generator are provided in a machine such as a gearbox. Signals from the sensors and the tacho generator are processed by a signal processing circuit to monitor for abnormal interaction between plural interacting components of the machine The signal from the tacho generator may be used by the signal processing circuit to produce a signal which is an average of the electrostatic activity at the interacting components over a cycle of the machine. Such an averaged signal will contain enhanced components relating to electrostatic activity relating to the cycle of the machine.