METHOD FOR CONVERSION OF A SHAFT'S ANGULAR POSITION INTO CODE

WIPO Patent Application WO/1991/006152

A1

A method for conversion of a shaft's angular position into a code providing for generation, during the rotation of the shaft, of three pulse sequences, the number of pulses of the first two of which is proportional to the angular position of the shaft, whereas the sign of their mutual phase shift characterizes the direction of its rotation. A fourth pulse sequence is additionally generated, the rotation of the shaft being effected until the occurrence of the first pulse of the fourth sequence, and a code of the shaft's angular displacement is determined at the current moment of time in relation to a basic reference point, by counting the number of pulses of the first or the second sequence from the moment of appearance of the first pulse of the third sequence. A device for implementation of the method for conversion of the shaft's angular position into a code is provided with a synchronization unit (4) and with an additional reversible counter (5), the first (4a) and the second (4b) input of the synchronization unit (4) being connected, respectively, to the fourth (1d) and the third (1c) output of a displacement pick-up (1), and the third (4c) and the fourth (4d) input of the synchronization unit (4) being connected, respectively, to the first (2c) and the second (2d) output of a rotation direction determining unit (2).

PETROV VLADIMIR ALEXANDROVICH (SU)
BABITSKY NIKOLAI ALEXANDROVICH (SU)
OVOD-MARCHUK GRIGORY VASILIEVI (SU)

PCT/SU1990/000235

May 02, 1991

October 15, 1990

Click for automatic bibliography generation  

N PROIZV OB GRANAT (SU)

G01D5/245; G05B19/21; H03M1/30; (IPC1-7): G05B19/18; H03M1/24

GB1390546A	1975-04-16
DE3407102A1	1985-09-05
US4358753A	1982-11-09
EP0201106A2	1986-11-12
SU506892A1	1976-03-15

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