G - Physics – 01 – R
Patent
G - Physics
01
R
324/17
G01R 31/34 (2006.01) G01N 3/30 (2006.01) G01N 3/06 (2006.01) G01N 33/00 (2006.01)
Patent
CA 2019216
A low profile remotely controlled carriage which is inserted between the rotor and stator of an electric generator carries an impactor which can be preloaded to strike the stator wedges in all orientations around the stator with a selected high impact force which causes the stator wedge to vibrate. A detector seismically isolated from the impactor measures the deflections in the vibrating stator wedge. Preferably, the detector includes an eddy current coil positioned to measure the distance to a wedge follower which vibrates with the wedge. In one embodiment, the wedge follower is a vacuum cup secured to the wedge. In another, the eddy current coil measures the distance to a foot spring biased against the vibrating wedge. Preferably, the detector is seismically isolated by mounting it on a separate carriage disposed in an aperture in the low profile carriage.
Dailey George Franklin
Fischer Mark William
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Westinghouse Electric Corporation
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