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Wireless telemetry system including an induction power system

  • US 9,325,388 B2
  • Filed: 06/21/2012
  • Issued: 04/26/2016
  • Est. Priority Date: 06/21/2012
  • Status: Active Grant
First Claim
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1. A telemetry system for use in a combustion turbine engine having a compressor, a combustor and a turbine, the telemetry system comprising:

  • a sensor on a turbine blade;

    a telemetry transmitter circuit affixed to the turbine blade;

    a first electrical connection on the turbine blade for routing electronic data signals from the sensor to the telemetry transmitter circuit, the electronic data signals indicative of a condition of the turbine blade;

    an induction power system for powering the telemetry transmitter circuit comprising;

    at least one stationary primary induction coil assembly affixed to a stationary component adjacent to the turbine blade; and

    ,a rotating secondary induction coil assembly mounted to an end face of a root of the turbine blade;

    wherein the stationary primary induction coil assembly comprises a plurality of ceramic substrates, including a first and last ceramic substrate, mounted to a static seal segment of the stationary component and the ceramic substrates are aligned end to end forming acontinuous arc spanning a circumference of the static seal segment wherein on each ceramic substrate a planar winding is formed and the planar windings are electrically connected in series to adjacent planar windings on adjacent ceramic substrates, and an external power source is electrically connected to the planar winding of the first ceramic substrate and to the planar winding of the last ceramic substrate in the series;

    a rotating data antenna affixed to the end face of the root of the turbine blade;

    a second electrical connection on the turbine blade for routing the electronic data signals from the telemetry transmitter circuit to the rotating data antenna; and

    ,a stationary data antenna affixed to the stationary component.

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