TRACING SYSTEM Russian patent published in 1997 - IPC

FIELD: automatic control systems which use sine-cosine transducers, in particular, for control of angular position of instruments. SUBSTANCE: device has serial circuit of input shaft, detector, receiver, alternating current amplifier, final-control motor, gear and output shaft, which is connected to controlled object. In addition device has AND gates, multipliers, threshold gates, adders, synchronous detectors, inverters and commutation board. System provides synchronous monitoring of output shaft operations using input shaft by means of generation of signals which are proportional to sine and cosine of angle of output shaft for known sine and cosine of rotation angle of input shaft and sine of and cosine of difference angle and corresponding use of generated signals. EFFECT: increased efficiency, increased reliability due to decreased number of moving and contact elements. 3 cl, 14 dwg