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Title: Non-contact current and voltage sensing method using a clamshell housing and a ferrite cylinder

Abstract

A method of measurement using a detachable current and voltage sensor provides an isolated and convenient technique for to measuring 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.

Inventors:
; ; ; ; ;
Issue Date:
Research Org.:
International Business Machines Corp., Armonk, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1248871
Patent Number(s):
9,322,854
Application Number:
13/451,524
Assignee:
INTERNATIONAL BUSINESS MACHINES CORPORATION (Armonk, NY)
DOE Contract Number:  
EE0002897
Resource Type:
Patent
Resource Relation:
Patent File Date: 2012 Apr 19
Country of Publication:
United States
Language:
English
Subject:
24 POWER TRANSMISSION AND DISTRIBUTION; 47 OTHER INSTRUMENTATION

Citation Formats

Carpenter, Gary D., El-Essawy, Wael, Ferreira, Alexandre Peixoto, Keller, Thomas Walter, Rubio, Juan C., and Schappert, Michael. Non-contact current and voltage sensing method using a clamshell housing and a ferrite cylinder. United States: N. p., 2016. Web.
Carpenter, Gary D., El-Essawy, Wael, Ferreira, Alexandre Peixoto, Keller, Thomas Walter, Rubio, Juan C., & Schappert, Michael. Non-contact current and voltage sensing method using a clamshell housing and a ferrite cylinder. United States.
Carpenter, Gary D., El-Essawy, Wael, Ferreira, Alexandre Peixoto, Keller, Thomas Walter, Rubio, Juan C., and Schappert, Michael. Tue . "Non-contact current and voltage sensing method using a clamshell housing and a ferrite cylinder". United States. https://www.osti.gov/servlets/purl/1248871.
@article{osti_1248871,
title = {Non-contact current and voltage sensing method using a clamshell housing and a ferrite cylinder},
author = {Carpenter, Gary D. and El-Essawy, Wael and Ferreira, Alexandre Peixoto and Keller, Thomas Walter and Rubio, Juan C. and Schappert, Michael},
abstractNote = {A method of measurement using a detachable current and voltage sensor provides an isolated and convenient technique for to measuring 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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {4}
}

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Works referenced in this record:

Current Sensing Techniques: A Review
journal, April 2009

  • Ziegler, Silvio; Woodward, Robert C.; Iu, Herbert Ho-Ching
  • IEEE Sensors Journal, Vol. 9, Issue 4
  • DOI: 10.1109/JSEN.2009.2013914

Non-contact voltage measurement using electronically varying capacitance
journal, January 2010