FIELD: automotive industry.
SUBSTANCE: pickup comprises housing, sensitive member which rotates around its axis, driving shaft, counter of the number of revolutions, analyzer, and fixing, directing and receiving lenses which connect the source and receiver of optical radiation through fiber optical cable. The sensitive member is made of optical plate with natural polarization mounted in the tube which rotates in bearings. The tube is connected with the driving shaft through a transmitting mechanism whose axis of rotation passes through the intersection of optical axes of the plate. The directing and receiving lenses are set in the guiding pipes.
EFFECT: enhanced accuracy of measurements.
3 dwg
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