Compensated rogowski coil
First Claim
Patent Images
1. A coil for sensing a changing current comprising:
- (a) an elongate substantially flexible core material, said elongate substantially flexible core material having a first end portion and a second end portion, said elongate substantially flexible core material having a first middle portion between said first end portion and said second end portion, said second end portion at an opposite end of said first elongate substantially flexible core material than said first end portion;
(b) an elongate conductive member encircling said first middle portion of said substantially flexible core material;
(c) a coupler that interconnects said first end portion and said second end portion of said substantially flexible core material;
(d) a sensing module that receives an input signal from said elongate conductive member and determines a conductor signal within a conductor at least partially encircled within said elongate substantially flexible core material based upon said input signal;
(e) said sensing module modifying said input signal based in a first manner for a first frequency range based upon a primary signal frequency of said input signal and in a second manner for a second frequency range based upon a first harmonic of said primary signal frequency.
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Accused Products
Abstract
A coil that includes compensation.
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Citations
20 Claims
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1. A coil for sensing a changing current comprising:
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(a) an elongate substantially flexible core material, said elongate substantially flexible core material having a first end portion and a second end portion, said elongate substantially flexible core material having a first middle portion between said first end portion and said second end portion, said second end portion at an opposite end of said first elongate substantially flexible core material than said first end portion; (b) an elongate conductive member encircling said first middle portion of said substantially flexible core material; (c) a coupler that interconnects said first end portion and said second end portion of said substantially flexible core material; (d) a sensing module that receives an input signal from said elongate conductive member and determines a conductor signal within a conductor at least partially encircled within said elongate substantially flexible core material based upon said input signal; (e) said sensing module modifying said input signal based in a first manner for a first frequency range based upon a primary signal frequency of said input signal and in a second manner for a second frequency range based upon a first harmonic of said primary signal frequency. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification