APPARATUS AND METHOD FOR DETECTING RADIATION DEFLECTED FROM A ROTATING COMPONENT

An apparatus for detecting radiation deflected from a rotating component includes a probe body on a stationary component radially outward of the rotating component; and a pair of arrival time sensors coupled to the probe body. Each arrival time sensor includes a light pipe that receives radiation de...

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Bibliographische Detailangaben
Hauptverfasser:	Ellis, Andrew David, Ball, Michael Allen, Schleif, Kurt Kramer
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING ENGINE PLANTS IN GENERAL HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS STEAM ENGINES TESTING WEAPONS
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Beschreibung
Zusammenfassung:	An apparatus for detecting radiation deflected from a rotating component includes a probe body on a stationary component radially outward of the rotating component; and a pair of arrival time sensors coupled to the probe body. Each arrival time sensor includes a light pipe that receives radiation deflected from the rotating component and that reduces directional variation of the radiation. A detector is optically coupled to each respective light pipe. The detector is positioned to receive the radiation with reduced directional variation from the light pipe. A method of detecting radiation from the rotating component using the apparatus determines a clearance between the rotating component (e.g., a turbomachine blade) and a stationary component (e.g., a casing).