Berührungslose Gleichspannungsmessvorrichtung mit Oszillierendem Sensor

Details

Veröffentlichungs-Nr.

EP3567380

Aktenzeichen

EP19173634

Anmeldetag

9. Mai 2019

Veröffentlichung

20. April 2022

Erteilung

20. April 2022

Rechtsraum

EP

IPC

G01R1/04G01R1/22G01R15/12G01R15/14G01R15/16

Abstract

Systems and methods for measuring direct current (DC) voltage of an insulated conductor (e.g.,insulated wire) are provided, without requiring a galvanic connection between the conductor and a test electrode or probe. A non-contact DC voltage measurement device may include a conductive sensor that is mechanically oscillated. The insulated conductor under test serves as a first conductive element or electrode of a coupling capacitor, and the vibrating conductive sensor serves as a second conductive element or electrode of the coupling capacitor. The oscillation of the conductive sensor provides the coupling capacitor with a time-varying capacitance value. The measurement device detects current flowing through the coupling capacitor, and determines the DC voltage in the insulated conductor using the detected current and the time-varying capacitance. The determined DC voltage may be output to a display or transmitted to an external system via a wired or wireless connection.

Anmelder

Firma

Fluke Corporation

Land

🇺🇸 USA

Fachgebiete