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Apparatus, system, and method for multicoil telemetry

  • US 9,368,273 B2
  • Filed: 03/09/2012
  • Issued: 06/14/2016
  • Est. Priority Date: 03/11/2011
  • Status: Active Grant
First Claim
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1. An apparatus comprising:

  • a driving inductive unit, the driving inductive unit coupled to an electric source and configured to generate an alternating magnetic field; and

    an intermediate inductive unit disposed between the driving inductive unit and a receiving inductive unit, wherein;

    the intermediate inductive unit has a quality factor (Qt);

    the receiving inductive unit has another quality factor (Ql);

    the intermediate inductive unit is configured to alter the shape of the generated alternating magnetic field to optimize coupling efficiency between the driving inductive unit and the receiving inductive unit such that maximum power transfer is achieved by, for a given coupling factor (k2) between the receiving inductive unit and the intermediate inductive unit, selecting one of a coupling factor (k1) between the driving inductive unit and the intermediate inductive unit or a further quality factor (Qd) of the driving inductive unit, and determining the other of the coupling factor (k1) or the further quality factor (Qd) to achieve a loading factor (N) of value 1 according to;

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