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Exciter assemblies

  • US 10,278,779 B1
  • Filed: 06/06/2018
  • Issued: 05/07/2019
  • Est. Priority Date: 06/05/2018
  • Status: Active Grant
First Claim
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1. A device comprising:

  • a) a base substrate,b) first, second, third, and fourth exciter coils attached to said substrate and configured to generate a magnetic field for causing a tag to generate a signal,c) a balun circuit electrically linked to said first, second, third, and fourth exciter coils, andd) a plurality of witness station assemblies, wherein said witness station assembly comprises;

    i) a witness coil, wherein said witness coil comprises;

    A) a metal core having a coil-free proximal end, a coil-free distal end, and a central region, andB) coil windings wound around said central region of said metal core,ii) first and second witness coil brackets, andiii) first and second elastomeric parts,wherein said coil-free proximal end of said metal core is secured between said first witness coil bracket and said first elastomeric part, andwherein said coil-free distal end of said metal core is secured between said second witness coil bracket and said second elastomeric part.

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