This design easily attaches the sensor board to any type of mechanical water meter with metalized index wheel and detects with it, both RPM as well as the rotation direction.
特性
Setup includes a DC motor, motor control unit, analog signal connector, and sensor connector kit.
Configure the sensibility of rotational metal detection by changing the phase between the reference excitation signal and the sensor excitation signals.
Sensibility is controlled by adding delay in excitation signals.