METHOD OF DETERMINING ANGLE OF ROTOR ROTATION OF ANGLE SENSOR OF SINE-COSINE ROTARY TRANSFORMER TYPE

摘要

FIELD: automatic control.;SUBSTANCE: invention relates to automatic monitoring and control and can be used in a modern electric drive to create a digital angle converter. Method is based on software-hardware demodulation of output amplitude-modulated signals (AMS) from the angle sensor of a sine-cosine rotary transformer type. In the method, due to integration of rectified signals of carrier components of sine and cosine AMS, determined are envelopes of positive parts of rectified signals of the carrier components of sine and cosine of AMS, and those envelopes amplitudes are converted into a digital code. Codes of amplitudes of envelopes of positive parts of rectified signals of the carrier components of sine and cosine AMS are used to determine envelopes amplitudes codes of the carriers of sine and cosine AMS, and their sign is determined by the level of signals from magnetic field sensors.;EFFECT: technical result is faster operation.;1 cl, 2 dwg