ULTRASONIC ANGULAR DISPLACEMENT SPEED TRANSDUCER Russian patent published in 1995 - IPC

FIELD: measurement technology. SUBSTANCE: magnetostrictive transducer has two annular sound conductors 1 and 2 made of similar-type magnetostrictive material with equal bending radii secured on opposite sides of axis 3 of revolution of equipment under test, two electroacoustic transducers 4 and 5, switch 6, record amplifier 7, read amplifier 8, one-shot multivibrator 9, control flip-flop 10, instrument oscillator 11, two counters 12, 13, error flip-flop 14, input and output buses 15, 16. EFFECT: reduced effect of acoustic and temperature fields on transducer operation. 2 cl, 3 dwg