Patent ID: 8527241
Filing Date: 2013-09-03
Classification: F01D

Abstract:
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 in connection with a turbine blade; a telemetry transmitter circuit affixed to the turbine blade; a first connecting material deposited 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; a rotating data antenna affixed to an end face of a root of the turbine blade; a second connecting material deposited on the turbine blade for routing electronic data signals from the telemetry transmitter circuit to the rotating data antenna; a stationary data antenna affixed to a static seal segment adjacent the turbine blade, wherein the telemetry transmitter circuit is contained within a telemetry transmitter assembly comprising: a mourning bracket having a first thermal expansion coefficient that is substantially the same as a thermal expansion coefficient of the turbine blade; an electronics package having a second thermal expansion coefficient different from the first thermal expansion coefficient, the telemetry transmitter circuit contained within the electronics package; retention screws to affix a cover plate to the telemetry transmitter assembly, the cover plate having a flange arranged to relieve the retention screws from solely carrying G-forces exerted on the cover plate when the turbine blade rotates; and a planar layer of ceramic fiber woven fabric disposed between the electronics package and an inside surface of the mounting bracket to accommodate a dimensional change, differential that can occur between the electronics package and the mounting bracket due to the different first and second thermal expansion coefficients.