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Current sensor which is attachable to an external object by retention between the external object and an electrical conductor

  • US 5,436,557 A
  • Filed: 02/28/1994
  • Issued: 07/25/1995
  • Est. Priority Date: 02/28/1994
  • Status: Expired due to Term
First Claim
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1. A current sensor, comprising:

  • a housing having a first opening extending into it, said housing having an outer periphery and an inner periphery, said inner periphery being disposed around said first opening;

    a toroidal member disposed within said housing and around said first opening, said toroidal member being magnetically responsive to a current flowing through said first opening;

    a planar member attached to said housing, said planar member extending inward from said inner periphery, said planar member having a second opening extending therethrough;

    an electrical conductor extending through said first opening and said second opening, said electrical conductor being disposed through a central portion of said toroidal member, said electrical conductor being attachable to an external object, said planar member being disposable between a portion of said electrical conductor and said external object to rigidly retain said sensor in a predetermined position relative to said external object; and

    means, associated with said toroidal member, for measuring said current flowing through said electrical conductor as a function of a magnetic response in said toroidal member.

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