EDGE DETECTOR
First Claim
1. An edge detector for determining the axial position of the leading or trailing edge of a rotating blade within rotating machinery, the edge detector including:
- a set of axially spaced tip detection probes locatable within a casing of the machinery, each probe being arranged to detect whether or not the blade passes over that probe;
wherein the edge detector determines the axial position of the edge of the blade as the position of the boundary between those tip detection probes which detect passage of the blade tip thereover and those tip detection probes which detect no passage of the blade tip thereover.
1 Assignment
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Accused Products
Abstract
An edge detector is provided for determining the axial position of the leading or trailing edge of a rotating blade within rotating machinery. The edge detector includes a set of axially spaced tip detection probes locatable within a casing of the machinery. Each probe is arranged to detect whether or not the blade tip passes over that probe. The edge detector determines the axial position of the edge of the blade as the position of the boundary between those tip detection probes which detect passage of the blade tip thereover and those tip detection probes which detect no passage of the blade tip thereover.
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Citations
17 Claims
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1. An edge detector for determining the axial position of the leading or trailing edge of a rotating blade within rotating machinery, the edge detector including:
a set of axially spaced tip detection probes locatable within a casing of the machinery, each probe being arranged to detect whether or not the blade passes over that probe; wherein the edge detector determines the axial position of the edge of the blade as the position of the boundary between those tip detection probes which detect passage of the blade tip thereover and those tip detection probes which detect no passage of the blade tip thereover. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A rotating machinery casing fitted with the edge detector, the edge detector including:
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a set of axially spaced tip detection probes locatable within a casing of the machinery, each probe being arranged to detect whether or not the blade tip passes over that probe; wherein the edge detector determines the axial position of the edge of the blade as the position of the boundary between those tip detection probes which detect passage of the blade tip thereover and those tip detection probes which detect no passage of the blade tip thereover. - View Dependent Claims (14, 15, 16, 17)
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Specification