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Precision, temperature-compensated, shielded current measurement device

  • US 7,545,138 B2
  • Filed: 07/06/2006
  • Issued: 06/09/2009
  • Est. Priority Date: 07/06/2006
  • Status: Active Grant
First Claim
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1. An electric current measuring device of the type using a coil and comprising:

  • a core including a plurality of cavities therein;

    a conductive coil wound about the core to form a first winding in a first direction and a second winding constituting a return winding, anda Faraday shield extending around the core, outside of the coil, and comprises a first insulation layer and a non-ferromagnetic metal layer.

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