DEVICE FOR DETERMINING UNBALANCE AMPLITUDE AND PHASE Russian patent published in 1995 - IPC

FIELD: devices for determining angular position and unbalance of rotor mechanisms; development of balancing equipment. SUBSTANCE: device has vibration and initial position sensors, analog comparators, shapers, and computing unit; in addition, it is provided with counting flip-flop, five integrating elements, EXCLUSIVE OR gate, inverter, analog inverter, two analog switches, and two low-frequency filters. EFFECT: improved accuracy in determining unbalance amplitude and phase due to discrimination of current value of speed components of vibration at relatively low hardware expenses and high speed of following up changes in frequency of revolutions which enables measurements in rotor mechanisms with small run-out distance. 3 dwg