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Lightweight high power electromagnetic transducer

  • US 5,311,092 A
  • Filed: 10/12/1990
  • Issued: 05/10/1994
  • Est. Priority Date: 12/23/1985
  • Status: Expired due to Term
First Claim
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1. An electromagnetic transducer, comprising:

  • (a) magnetic flux producing means of high energy permanent magnets for producing a magnetic flux;

    (b) an armature means for intercepting said magnetic flux, said armature means including conductor means having a plurality of discrete active regions for carrying electrical current and which are spaced apart and have a substantially rectangular cross-section to provide a plurality of discrete elongated open space areas between said active regions,said active regions comprising a plurality of parallel conductive wires insulated from one another, said conductive wires having a diameter on the order of 0.008",magnetic flux carrying means comprising a multiplicity of discrete flux carrying members formed of non-sintered highly compressed iron powder particles interposed between said active regions of said conductor means,said flux carrying members containing a bonding agent to hold together said flux carrying means and a bonding agent to bond said flux carrying means and said conductor means;

    (c) a movable member having one of said magnetic flux producing means and said armature means secured thereto; and

    (d) means for mounting another of said magnetic flux producing means and said armature means to allow said movable member to move relative thereto, whereby said magnetic flux producing means and said armature means are able to move relative to one another.

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