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. 05, 2013
Filed:
Oct. 20, 2010
Douglas Stewart Dorr, Tavares, FL (US);
Kermit O. Phipps, Harriman, TN (US);
Thomas A. Cooke, Maynardville, TN (US);
Philip C. Cochrane, Maryville, TN (US);
Douglas Stewart Dorr, Tavares, FL (US);
Kermit O. Phipps, Harriman, TN (US);
Thomas A. Cooke, Maynardville, TN (US);
Philip C. Cochrane, Maryville, TN (US);
Electric Power Research Institute, Inc., Charlotte, NC (US);
Abstract
This invention relates to non-contact measurement methods and an apparatus for the identification of hazardous contact voltages on energized objects and surfaces. The apparatus includes an electric field sensor structured to sense an electric field and a gain amplifier electrically connected to the electric field sensor to amplify electric signals from the electric field sensor. The apparatus further includes a signal conditioning circuit adapted to process the amplified electric signals and form time-coordinated signals and a digital signal processor adapted to evaluate the time-coordinated signals and provide a user with a status of a contact voltage source by activating an appropriate status indicator.