AUTOMATIC CONTROL SYSTEM FOR RECTILINEAR MOTION DISTANCE

摘要

PURPOSE:To perform distance control by mechanical noncontact system by making ultrasonic pulse aerial transmission between two members locating on the same line and having a relative distance fluctuating relation each other. CONSTITUTION:An ultrasonic pulse generation circuit 1 radiates ultrasonic pulses from a piezoelectric device 10 by the trigger generated by a synchronizing trigger pulse generation circuit 12. Said ultrasonic pulses are receiced by receiver R of an ultrasonic pulse receiving circuit II to be inputted in a latch circuit 41 of position locating control circuit IV as a receiving pulse. The output from the latch circuit 41, set-up pulse generation circuit 30 and the like are inputted in the position locating circuit 40. By the output of the position locating circuit 40 the distance between the transmitter 10 and the receiver 20 is so controlled as to be the desired one.