Wireless telemetry for instrumented component
First Claim
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 mounting 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.
6 Assignments
0 Petitions
Accused Products
Abstract
A telemetry system for use in a combustion turbine engine (10) having a compressor (12), a combustor and a turbine (16) that includes a sensor (50, 74) in connection with a turbine blade (18) or vane (22). A telemetry transmitter circuit (210) may be affixed to the turbine blade (18) with a first connecting material (52, 152) deposited on the turbine blade (18) for routing electronic data signals from the sensor (50, 74) to the telemetry transmitter circuit (210), the electronic data signals indicative of a condition of the turbine blade (18). An induction power system for powering the telemetry transmitter circuit (210) may include a rotating data antenna (202) affixed to the turbine blade (18) with a second connecting material (140) deposited on the turbine blade (18) for routing electronic data signals from the telemetry transmitter circuit (210) to the rotating data antenna (202). A stationary data antenna (184) may be affixed to a static seal segment 180 adjacent the turbine blade (18) for receiving electronic data signals from the rotating data antenna (202).
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Citations
19 Claims
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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:
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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 mounting 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A telemetry system comprising:
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a telemetry transmitter assembly affixed to a component within a combustion turbine engine at a location having an operating temperature of approximately 450°
C.;a telemetry transmitter circuit contained within the telemetry transmitter assembly, the telemetry transmitter circuit configured to process electronic data signals indicative of a condition of the component; an antenna assembly affixed to the component at a location having an operating temperature of approximately 450°
C.;a data transmission antenna contained within the antenna assembly, the data transmission antenna receiving electronic data signals from the telemetry transmitter circuit indicative of the condition of the component; and an induction power system configured for powering the telemetry transmitter circuit, the induction power system operating within the combustion turbine engine at a location having an operating temperature of approximately 450°
C., the induction power system comprising at least one stationary primary induction coil assembly affixed to the static seal segment adjacent to the turbine blade;a rotating secondary induction coil assembly electromagnetically coupled through an air gap to said at least one stationary primary induction coil assembly and affixed to the end face of the turbine blade root; and a power source energizing the stationary primary induction coil assembly so that the rotating secondary induction coil assembly operates at a frequency of between approximately 250 kHz to 1 MHz. - View Dependent Claims (18)
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19. A telemetry system for use within a combustion turbine engine, the telemetry system comprising:
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a telemetry transmitter circuit board affixed proximate a turbine blade root and having electronic circuitry configured for receiving electronic data signals from a sensor and transmitting electronic data signals indicative of a condition of a component within the combustion turbine engine; a first data antenna affixed to an end face of the turbine blade root and configured for receiving the electronic data signals transmitted from the telemetry transmitter circuit board; a second data antenna affixed to a static seal segment adjacent to the first data antenna and configured for receiving electronic data signals transmitted from the first data antenna; at least one primary induction coil assembly affixed to the static seal segment and having a core made of a magnetic nanocrystalline iron alloy; a secondary induction coil assembly electromagnetically coupled through an air gap to said at least one primary induction coil assembly, the secondary induction coil assembly affixed to the end face of the turbine blade root and having a core made of the magnetic nanocrystalline iron alloy; and wherein the at least one primary induction coil assembly is energized at approximately 250 kHz so that the secondary induction coil assembly has an operating frequency of approximately 250 kHz and provides power to the telemetry transmitter circuit board.
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Specification