Circuit arrangement for the digital measurement of the angular velocity and angular acceleration of rotating machines

摘要

The invention relates to a circuit arrangement for the digital measurement of the angular velocity and the angular acceleration of rotating machines, in particular of electric motors, which is installed in or connected to the data-fixing external circuits, sensors and other circuits (memories, datbuses, counters etc.). The circuit arrangement is characterised in that the output of a sensor 1 mounted on the shaft of the machine to be tested is connected to the input of a signal conditioner 2 whose output is connected to the time input of a D flip flop 3 and to the input of cycle counters 4, in that the output of the cycle counters 4 is connected to a databus 5 belonging to a microcomputer system and the databus 5 is connected to the input of a RAM memory 6 belonging to the outer system, in that the output of the quartz-controlled time marker generator 9, which is built into the circuit arrangement 18, is connected, on the one hand, to the input of an elapsed-time counter 8 and, on the other hand, to the input of a measurement control circuit 9 and the outputs of the elapsed-time counters 8 are connected to the databus 5, in that one of the outputs of the measurement control circuit 9 is connected via an invertor 10 and the other is connected directly to respectively one input of NAND circuits 11 and the signal output T DELTA of the measurement control circuit 9 is connected to the other input of the NAND circuits 11, in that the outputs of the NAND circuits 11...to the D input of the D flip flops 3... Original abstract incomplete. IMAGE