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:
Jun. 29, 2021
Filed:
Nov. 15, 2016
Hitachi, Ltd., Tokyo, JP;
HITACHI, LTD., Tokyo, JP;
Abstract
Provided are a non-contact voltage measurement device and diagnosis system capable of acquiring the voltage of an electric wire without disconnecting the wire. The non-contact voltage measurement device () includes: a cylindrical fixing part () for holding an electric wire () by clipping the same from both sides; a first electrode () and a second electrode () provided on the inner peripheral surface of the electric-wire-holding side of the fixing part () so as to be separated by a distance (D); a first measurement capacitor (C) and a voltage division capacitor (C) connected to the first electrode (); a second measurement capacitor (C') connected to the second electrode (); a terminal () for measuring the voltage (V) applied to the first measurement capacitor (C); and a terminal () for measuring the voltage (V) applied to the second measurement capacitor (C′).