초록 ▼

A component for use in a combustion turbine (10) is provided that includes a substrate (212) and an abradable coating system (216) deposited on the substrate (212). A planar proximity sensor (250) may be deposited beneath a surface of the abradable coating system (216) having circuitry (252) configu

A component for use in a combustion turbine (10) is provided that includes a substrate (212) and an abradable coating system (216) deposited on the substrate (212). A planar proximity sensor (250) may be deposited beneath a surface of the abradable coating system (216) having circuitry (252) configured to detect intrusion of an object (282) into the abradable coating system (216). A least one connector (52) may be provided in electrical communication with the planar proximity sensor (250) for routing a data signal from the planar proximity sensor (250) to a termination location (59). A plurality of trenches (142) may be formed at respective different depths below the surface of the abradable coating system (216) with a planar proximity sensor (250) deposited within each of the plurality of trenches (142). A processing module (34) may be programmed for receiving data from the planar proximity sensor (250) and calculating a clearance between a row of blades (18,19) within a combustion turbine and the planar proximity sensor (250). The processing module (34) may control a clearance between the row of blades (18) and a ring segment (284) based on data received from the planar proximity sensors (250).

대표청구항 ▼

We claim as our invention: 1. A component for use in a combustion turbine, the component comprising: a substrate; an abradable coating system deposited on the substrate; a planar proximity sensor deposited beneath a surface of the abradable coating system and comprising circuitry configured to dete

We claim as our invention: 1. A component for use in a combustion turbine, the component comprising: a substrate; an abradable coating system deposited on the substrate; a planar proximity sensor deposited beneath a surface of the abradable coating system and comprising circuitry configured to detect intrusion of an object into the abradable coating system; and at least one connector in electrical communication with the planar proximity sensor for routing a data signal from the planar proximity sensor to a termination location. 2. The component of claim 1 further comprising: a transmitter in electrical communication with the at least one connector for wirelessly transmitting the data signal outside the combustion turbine. 3. The component of claim 1 further comprising a trench formed in the abradable coating system wherein the planar proximity sensor is deposited within the trench. 4. The component of claim 1 further comprising: a plurality of trenches formed at respective different depths below the surface of the abradable coating system; and a planar proximity sensor deposited within each of the plurality of trenches. 5. The component of claim 1, the component comprising a ring segment of the combustion turbine, the planar proximity sensor deposited at a predetermined depth beneath the surface of the abradable coating system, the predetermined depth selected based on a desired sensitivity of the planar proximity sensor for detecting intrusion of a blade tip of a combustion turbine into the abradable coating system. 6. The component of claim 1, the planar proximity sensor comprising at least one planar winding selected to generate an electromagnetic field in response to an applied voltage and detect changes in a resonant circuit caused by eddy current losses induced in the object when influencing the electromagnetic field. 7. The component of claim 6, the planar proximity sensor comprising a first planar winding and a second planar winding. 8. The component of claim 1, the planar proximity sensor comprising a magnetic core and a winding around the magnetic core. 9. The component of claim 8, the winding comprising a first layer of nonmagnetic conducting material above the magnetic core and a second layer of nonmagnetic conducting material beneath the magnetic core. 10. The component of claim 8, the winding comprising alternating layers of a nonmagnetic conducting material and an insulting material.