Apparatus for detecting the angular position of a shaft using laser light backscattered from a shaft surface

PCT No. PCT/GB91/00865 Sec. 371 Date Jan. 19, 1993 Sec. 102(e) Date Jan. 19, 1993 PCT Filed May 30, 1991 PCT Pub. No. WO91/19169 PCT Pub. Date Dec. 12, 1991.Two beams of laser light are directed onto the surface of a rotary shaft at points (12a, 12b) spaced longitudinally along the shaft from one an...

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Hauptverfasser:	HALLIWELL, NEIL A
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS MEASURING MEASURING ANGLES MEASURING AREAS MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR PHYSICS TARIFF METERING APPARATUS TESTING
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