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Title: Non-contact current and voltage sensor

Patent ·
OSTI ID:1128541

A detachable current and voltage sensor provides an isolated and convenient device to measure current passing through a conductor such as an AC branch circuit wire, as well as providing an indication of an electrostatic potential on the wire, which can be used to indicate the phase of the voltage on the wire, and optionally a magnitude of the voltage. The device includes a housing that contains the current and voltage sensors, which may be a ferrite cylinder with a hall effect sensor disposed in a gap along the circumference to measure current, or alternative a winding provided through the cylinder along its axis and a capacitive plate or wire disposed adjacent to, or within, the ferrite cylinder to provide the indication of the voltage.

Research Organization:
International Business Machines Corp., Armonk, NY (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
EE0002897
Assignee:
International Business Machines Corporation (Armonk, NY)
Patent Number(s):
8,680,845
Application Number:
13/024,181
OSTI ID:
1128541
Country of Publication:
United States
Language:
English

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Cited By (3)

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Non-contact current and voltage sensor having detachable housing incorporating multiple ferrite cylinder portions patent April 2016