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. 12, 2026
Filed:
Oct. 30, 2023
Nexans, Courbevoie, FR;
Raphaël Guffond, Lyons, FR;
Baptiste Meneguzzo, Lyons, FR;
NEXANS, Courbevoie, FR;
Abstract
A device () for measuring space charge in a high-voltage direct current electric cable includes a DC voltage source (), a voltage step generator (), a first electrode () connected to the DC voltage source () and to the voltage step generator (), a second electrode () that is grounded, a piezoelectric sensor () connected to the second electrode (), an electrical-signal amplifier () connected to the piezoelectric sensor (), and at least one specimen () of the electric cable placed between the first and second electrodes () and including a cut of the cable made to a predetermined depth in the electrical insulation system of the cable. The amplitude of the signal measured at the output of the amplifier () is related to the charge density in the specimen () and the delay related to the distance of the charges from the piezoelectric sensor () giving the position of the charges.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile