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:
Jul. 02, 2013
Filed:
Jul. 08, 2011
Ulrich Kordon, Dresden, DE;
Steffen Kuerbis, Dresden, DE;
Matthias Wolff, Goerlitz, DE;
Marco Kuettner, Dresden, DE;
Marco Stephan, Dresden, DE;
Torsten Berth, Moritzburg, DE;
Ulrich Kordon, Dresden, DE;
Steffen Kuerbis, Dresden, DE;
Matthias Wolff, Goerlitz, DE;
Marco Kuettner, Dresden, DE;
Marco Stephan, Dresden, DE;
Torsten Berth, Moritzburg, DE;
Hagenuk KMT Kabelmesstechnik GmbH, Radeburg, DE;
Technische Universitaet Dresden, Dresden, DE;
Abstract
An electrical pulse fed into an electrical cable, e.g. a power transmission or distribution cable buried underground, produces an acoustic signal, e.g. an arc-over or discharge noise, at a fault in the cable. This acoustic signal is detected and used to locate the fault. But the acoustic signal has interference noise superimposed on it, which makes it difficult to identify the acoustic signal in the noise-burdened received signal, and thus also makes it difficult or impossible to accurately locate the fault. To minimize or avoid the influence of interference noises, the relevant acoustic signal is identified in the received signal by comparing the received signal with predetermined sample data, such as signal patterns, characteristics or characteristic sets.