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

Carpenter, Gary D.; El-Essawy, Wael; Ferreira, Alexandre Peixoto; Keller, Thomas Walter; Rubio, Juan C.; Schappert, Michael

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A - human necessities
A01 - agriculture
A21 - baking
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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:: Carpenter, Gary D.; El-Essawy, Wael; Ferreira, Alexandre Peixoto; Keller, Thomas Walter; Rubio, Juan C.; Schappert, Michael

Issue Date:: Tue Apr 26 00:00:00 EDT 2016

Research Org.:: International Business Machines Corp., Armonk, NY (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1248871

Patent Number(s):: 9322854

Application Number:: 13/451,524

Assignee:: INTERNATIONAL BUSINESS MACHINES CORPORATION (Armonk, NY)

Patent Classifications (CPCs):: G - PHYSICS G01 - MEASURING G01R - MEASURING ELECTRIC VARIABLES

Show more

G - PHYSICS G01 - MEASURING G01R - MEASURING ELECTRIC VARIABLES
G01R1/22 - Tong testers acting as secondary windings of current tranformers
G01R15/142 - {Arrangements for simultaneous measurements of several parameters employing techniques covered by groups G01R15/14 - G01R15/26}
G01R21/06 - by measuring current and voltage
G01R33/02 - Measuring direction or magnitude of magnetic fields or magnetic flux
G01R33/072 - {Constructional adaptation of the sensor to specific applications}

Show less

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.

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                    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.

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                    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.

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@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         = {Tue Apr 26 00:00:00 EDT 2016},

  month        = {Tue Apr 26 00:00:00 EDT 2016}

}

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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
https://doi.org/10.1109/JSEN.2009.2013914

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

McKenzie, G.; Record, P.
Electronics Letters, Vol. 46, Issue 3
https://doi.org/10.1049/el.2010.2085

Clip-on inductive pulse pick-up
patent, January 1977

Heilmann, Wolfgang; Groetzner, Kurt; Frohnwieser, Bernhard
US Patent Document 4,005,380
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4005380

Current measuring apparatus and method
patent, May 1981

Karlin, Richard A.; McDonald, III, Robert W.; Comiskey, Gary F.
US Patent Document 4,266,189
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4266189

Method and apparatus for measuring a DC current in a wire without making a direct connection to the wire
patent, March 1983

Burdick, Neal M.
US Patent Document 4,378,525
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4378525

Device and method for sensing electric current in a conductor
patent, December 1985

Comeau, Leon J.; Birkholz, Roger O.
US Patent Document 4,558,276
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4558276

Current and/or voltage detector for a distribution system
patent, March 1991

Ishiko, Daisuke; Toda, Kazurou; Kamada, Osamu
US Patent Document 4,999,571
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4999571

Apparatus for measuring voltages and currents using non-contacting sensors
patent, December 1995

Libove, Joel; Singer, Jerome R.
US Patent Document 5,473,244
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5473244

Clamp-on electrical measuring device
patent, March 1997

Selcuk, Ahmet
US Patent Document 5,610,512
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5610512

Capacitively coupled RF voltage probe having optimized flux linkage
patent, February 1999

Moore, James A.; Sparks, Dennis O.
US Patent Document 5,867,020
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5867020

Electrical junction box
patent, December 1999

Murofushi, Haruyoshi; Yamaguchi, Noboru
US Patent Document 6,008,634
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6008634

Fixed type current detector
patent, July 2002

Gohara, Takashi; Tamai, Yasuhiro; Morimoto, Mitsuaki
US Patent Document 6,414,474
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6414474

Arc fault detection in ac electric power systems
patent, February 2003

Engel, Joseph C.; Parker, Kevin L.
US Patent Document 6,522,509
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6522509

Arc fault detector with diagnostic indicator
patent, November 2003

Romano, James P.; Richards, Jeffrey C.
US Patent Document 6,654,219
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6654219

Capacitive sensor systems and methods with increased resolution and automatic calibration
patent, December 2003

Ozick, Daniel N.
US Patent Document 6,661,239
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6661239

Method for discriminating abnormal current including arc current in AC load circuit and apparatus for executing the same
patent, March 2004

Itimura, Yasuo; Shiokawa, Akimi; Kunimoto, Yoichi
US Patent Document 6,703,842
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6703842

Method and system for measuring current
patent, March 2004

Culler, Mark Fredrick; Evans, Scott Charles
US Patent Document 6,708,126
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6708126

Non-contact voltage measurement method and device, and detection probe
patent, November 2004

Nakano, Koichi
US Patent Document 6,825,649
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6825649

Capacitive sensor systems and methods with increased resolution and automatic calibration
patent, September 2005

Ozick, Daniel N.
US Patent Document 6,940,291
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6940291

Apparatus and method for real time determination of arc fault energy, location and type
patent, June 2006

Zuercher, Joseph C.; McClanahan, David
US Patent Document 7,068,045
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7068045

Non-contact high-voltage electrometer architecture with low-voltage feedback
patent, August 2006

Denison, Timothy J.
US Patent Document 7,098,644
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7098644

Ring type current sensor
patent, December 2006

Itoh, Tomoki
US Patent Document 7,148,675
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7148675

Apparatus for measuring an a.c. current in a cable
patent, June 2007

Sorensen, Thomas
US Patent Document 7,227,348
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7227348

Flexible current sensor
patent, June 2007

Zhang, Bin; Bilac, Mario
US Patent Document 7,230,413
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7230413

Non-intrusive power monitor
patent, September 2007

Lightbody, Simon H.; Teachman, Michael E.; Gunn, Colin N.
US Patent Document 7,265,533
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7265533

Micro-electromechanical system (MEMS) based current and magnetic field sensor having capacitive sense components
patent, January 2008

Zribi, Anis; Claydon, Glenn Scott; Kapusta, Christopher James
US Patent Document 7,315,161
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7315161

Power monitoring system
patent, February 2008

Bowman, Marc; Bruno, David; Mauney, Marshall
US Patent Document 7,330,022
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7330022

Power monitoring system
patent, January 2009

Bowman, Marc; Bruno, David; Mauney, Marshall
US Patent Document 7,474,088
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7474088

High density metering system
patent, February 2009

Bruno, David
US Patent Document 7,493,222
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7493222

System for power sub-metering
patent, June 2009

Rivers, Jr., Cecil; Caggiano, Robert Joseph; Delica, Roossely
US Patent Document 7,546,214
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7546214

Method for enabling monitoring of power consumption
patent, November 2009

Adams, Frank J.; Klein, David L.
US Patent Document 7,622,912
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7622912

Current detection printed board, voltage detection printed board, and current/voltage detector using same, and current detector and voltage detector
patent, May 2010

Ibuki, Yoshifumi; Amadatsu, Shigeki; Kitano, Tomohiko
US Patent Document 7,714,594
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7714594

Current sensing module and assembly method thereof
patent, May 2010

Robarge, Dean A.; Caggiano, Robert Joseph; Rivers, Jr., Cecil
US Patent Document 7,719,257
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7719257

Method and apparatus for current measurement using hall sensors without iron cores
patent, May 2010

Chen, Kun-Long; Chen, Nan
US Patent Document 7,719,258
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7719258

Precision flexible current sensor
patent, December 2010

Grno, Ladislav
US Patent Document 7,847,543
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7847543

Folding current sensor
patent, May 2011

Doogue, Michael C.; Taylor, William P.; Dickinson, Richard
US Patent Document 7,936,164
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7936164

Non-intrusive electric alternating current sensor
patent, August 2011

Dockweiler, Robert
US Patent Document 7,990,133
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7990133

Power monitoring system
patent-application, November 2004

Bowman, Marc; Bruno, David; Mauney, Marshall
US Patent Application 10/791315; 20040227503
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20040227503

Current Sensor
patent-application, July 2005

Yakymyshyn, Christophere Paul; Brubaker, Michael Allen; Yakymyshyn, Pamela Jane
US Patent Application 10/905509; 20050156587
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20050156587

A Current Sensor That Includes a Pair of Segments
patent-application, April 2006

Bruno, David A.
US Patent Application 11/026929; 20060087777
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20060087777

Arc fault detection technique
patent-application, March 2007

Parker, Michael; Pellon, Christian V.; Rabiner, Mark D.
US Patent Application 11/225585; 20070058304
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20070058304

Power line universal monitor
patent-application, March 2008

Fernandes, Roosevelt
US Patent Application 11/527093; 20080077336
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20080077336

Current Sensing Module and Assembly Method Thereof
patent-application, April 2008

Robarge, Dean Arthur; Caggiano, Robert Joseph; Rivers, Cecil
US Patent Application 11/759307; 20080079437
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20080079437

Noncontact Measurement Method of Currents on Superconductive Wires Connected in Parallel
patent-application, April 2009

Choi, Kyeong Dal; Lee, Ji Kwang; Lee, Seung Wook
US Patent Application 12/043802; 20090105973
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20090105973

Folding Current Sensor
patent-application, January 2010

Doogue, Michael C.; Taylor, William P.; Dickinson, Richard
US Patent Application 12/167681; 20100001715
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20100001715

Branch current monitoring system
patent-application, October 2010

Rupert, Matthew
US Patent Application 12/798731; 20100264944
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20100264944

Differential-Mode Current Sensor
patent-application, October 2010

Blakely, John Herman
US Patent Application 12/786295; 20100271037
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20100271037

Wire Management Method with Current and Voltage Sensing
patent-application, August 2012

Carpenter, Gary D.; El-Essawy, Wael; Keller, JR., Thomas W.
US Patent Application 13/451515; 20120200285
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20120200285

Non-Contact Current and Voltage Sensing Method
patent-application, August 2012

Carpenter, Gary D.; El-Essawy, Wael; Ferreira, Alexander Peixoto
US Patent Application 13/451524; 20120200293
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20120200293

Wire Manager with Current and Voltage Sensing
patent-application, August 2012

Carpenter, Gary D.; El-Essawy, Wael; Keller, JR., Thomas W.
US Patent Application 13/024199; 20120203481
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20120203481

Calibration of Non-Contact Current Sensors
patent-application, December 2012

El-Essawy, Wael; Ferreira, Alexandre Peixoto; Keller, Thomas Walter
US Patent Application 13/159536; 20120319674
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20120319674

Multi-Conductor Cable Current and Voltage Sensors
patent-application, December 2012

El-Essawy, Wael; Ferreira, Alexandre Peixoto; Keller, Thomas Walter
US Patent Application 13/159554; 20120319676
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20120319676

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Similar Records

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

Abstract

Citation Formats

Current Sensing Techniques: A Review journal, April 2009

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

Clip-on inductive pulse pick-up patent, January 1977

Current measuring apparatus and method patent, May 1981

Method and apparatus for measuring a DC current in a wire without making a direct connection to the wire patent, March 1983

Device and method for sensing electric current in a conductor patent, December 1985

Current and/or voltage detector for a distribution system patent, March 1991

Apparatus for measuring voltages and currents using non-contacting sensors patent, December 1995

Clamp-on electrical measuring device patent, March 1997

Capacitively coupled RF voltage probe having optimized flux linkage patent, February 1999

Electrical junction box patent, December 1999

Fixed type current detector patent, July 2002

Arc fault detection in ac electric power systems patent, February 2003

Arc fault detector with diagnostic indicator patent, November 2003

Capacitive sensor systems and methods with increased resolution and automatic calibration patent, December 2003

Method for discriminating abnormal current including arc current in AC load circuit and apparatus for executing the same patent, March 2004

Method and system for measuring current patent, March 2004

Non-contact voltage measurement method and device, and detection probe patent, November 2004

Capacitive sensor systems and methods with increased resolution and automatic calibration patent, September 2005

Apparatus and method for real time determination of arc fault energy, location and type patent, June 2006

Non-contact high-voltage electrometer architecture with low-voltage feedback patent, August 2006

Ring type current sensor patent, December 2006

Apparatus for measuring an a.c. current in a cable patent, June 2007

Flexible current sensor patent, June 2007

Non-intrusive power monitor patent, September 2007

Micro-electromechanical system (MEMS) based current and magnetic field sensor having capacitive sense components patent, January 2008

Power monitoring system patent, February 2008

Power monitoring system patent, January 2009

High density metering system patent, February 2009

System for power sub-metering patent, June 2009

Method for enabling monitoring of power consumption patent, November 2009

Current detection printed board, voltage detection printed board, and current/voltage detector using same, and current detector and voltage detector patent, May 2010

Current sensing module and assembly method thereof patent, May 2010

Method and apparatus for current measurement using hall sensors without iron cores patent, May 2010

Precision flexible current sensor patent, December 2010

Folding current sensor patent, May 2011

Non-intrusive electric alternating current sensor patent, August 2011

Power monitoring system patent-application, November 2004

Current Sensor patent-application, July 2005

A Current Sensor That Includes a Pair of Segments patent-application, April 2006

Arc fault detection technique patent-application, March 2007

Power line universal monitor patent-application, March 2008

Current Sensing Module and Assembly Method Thereof patent-application, April 2008

Noncontact Measurement Method of Currents on Superconductive Wires Connected in Parallel patent-application, April 2009

Folding Current Sensor patent-application, January 2010

Branch current monitoring system patent-application, October 2010

Differential-Mode Current Sensor patent-application, October 2010

Wire Management Method with Current and Voltage Sensing patent-application, August 2012

Non-Contact Current and Voltage Sensing Method patent-application, August 2012

Wire Manager with Current and Voltage Sensing patent-application, August 2012

Calibration of Non-Contact Current Sensors patent-application, December 2012

Multi-Conductor Cable Current and Voltage Sensors patent-application, December 2012

Current Sensing Techniques: A Review
journal, April 2009

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

Clip-on inductive pulse pick-up
patent, January 1977

Current measuring apparatus and method
patent, May 1981

Method and apparatus for measuring a DC current in a wire without making a direct connection to the wire
patent, March 1983

Device and method for sensing electric current in a conductor
patent, December 1985

Current and/or voltage detector for a distribution system
patent, March 1991

Apparatus for measuring voltages and currents using non-contacting sensors
patent, December 1995

Clamp-on electrical measuring device
patent, March 1997

Capacitively coupled RF voltage probe having optimized flux linkage
patent, February 1999

Electrical junction box
patent, December 1999

Fixed type current detector
patent, July 2002

Arc fault detection in ac electric power systems
patent, February 2003

Arc fault detector with diagnostic indicator
patent, November 2003

Capacitive sensor systems and methods with increased resolution and automatic calibration
patent, December 2003

Method for discriminating abnormal current including arc current in AC load circuit and apparatus for executing the same
patent, March 2004

Method and system for measuring current
patent, March 2004

Non-contact voltage measurement method and device, and detection probe
patent, November 2004

Capacitive sensor systems and methods with increased resolution and automatic calibration
patent, September 2005

Apparatus and method for real time determination of arc fault energy, location and type
patent, June 2006

Non-contact high-voltage electrometer architecture with low-voltage feedback
patent, August 2006

Ring type current sensor
patent, December 2006

Apparatus for measuring an a.c. current in a cable
patent, June 2007

Flexible current sensor
patent, June 2007

Non-intrusive power monitor
patent, September 2007

Micro-electromechanical system (MEMS) based current and magnetic field sensor having capacitive sense components
patent, January 2008

Power monitoring system
patent, February 2008

Power monitoring system
patent, January 2009

High density metering system
patent, February 2009

System for power sub-metering
patent, June 2009

Method for enabling monitoring of power consumption
patent, November 2009

Current detection printed board, voltage detection printed board, and current/voltage detector using same, and current detector and voltage detector
patent, May 2010

Current sensing module and assembly method thereof
patent, May 2010

Method and apparatus for current measurement using hall sensors without iron cores
patent, May 2010

Precision flexible current sensor
patent, December 2010

Folding current sensor
patent, May 2011

Non-intrusive electric alternating current sensor
patent, August 2011

Power monitoring system
patent-application, November 2004

Current Sensor
patent-application, July 2005

A Current Sensor That Includes a Pair of Segments
patent-application, April 2006

Arc fault detection technique
patent-application, March 2007

Power line universal monitor
patent-application, March 2008

Current Sensing Module and Assembly Method Thereof
patent-application, April 2008

Noncontact Measurement Method of Currents on Superconductive Wires Connected in Parallel
patent-application, April 2009

Folding Current Sensor
patent-application, January 2010

Branch current monitoring system
patent-application, October 2010

Differential-Mode Current Sensor
patent-application, October 2010

Wire Management Method with Current and Voltage Sensing
patent-application, August 2012

Non-Contact Current and Voltage Sensing Method
patent-application, August 2012

Wire Manager with Current and Voltage Sensing
patent-application, August 2012

Calibration of Non-Contact Current Sensors
patent-application, December 2012

Multi-Conductor Cable Current and Voltage Sensors
patent-application, December 2012