Measure the rotation speed of the DC motor. DC motors are used in various fields, and more accurate motor rotation speed measurement is becoming more important, especially with recent use in electric vehicles. In this example, the OM-1200 motor/control rotation detector is used, installed parallel to the rotating shaft of the DC motor, the leakage magnetic flux from the DC motor is detected, and the rotation speed is displayed.

The CT-6700 digital engine tachometer is equipped with analog output and pulse output as standard. Analog output can record the state of rotation speed change with a data recorder etc, and pulse output can be captured into CF-9200A/9400A portable 2 ch/4 ch FFT analyzer for tracking analysis.