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.

Date of Patent:
Apr. 05, 2016

Filed:

Sep. 30, 2011
Applicant:

Kenneth W. Johnson, Colorado Springs, CO (US);

Inventor:

Kenneth W. Johnson, Colorado Springs, CO (US);

Assignee:

Keysight Technologies, Inc., Santa Rosa, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 27/72 (2006.01); G01R 15/20 (2006.01); G01R 1/067 (2006.01); G01R 15/18 (2006.01);
U.S. Cl.
CPC ...
G01R 15/207 (2013.01); G01R 1/06766 (2013.01); G01R 1/06788 (2013.01); G01R 15/183 (2013.01); G01R 15/202 (2013.01);
Abstract

A current probe enabling measurement of current of a signal in a circuit includes a ferrite core defining a gap, a wire wrapped around the ferrite core and a magnetic field sensor. The wire is configured to receive the signal from the circuit, where the current of the signal flowing in the wire generates a magnetic field in the ferrite core. The magnetic field sensor is positioned in the gap of the ferrite core, the magnetic field generated in the ferrite core flowing through the magnetic field sensor, which produces a voltage proportional to an intensity of the magnetic field. The current is measured based on the voltage produced by the magnetic field sensor.


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