I need a sensor to detect a change of direction in a rotating shaft. When the sensor detects the sudden change in direction it would trigger action of an electromagnet. The sensor would monitor either the shaft or a disk attached. A 12 volt dc power source would be used in the circuity.
In my experimental project I require a low rpm dc generator to charge a bank of 12 volt storage batteries.
A rotating shaft alternates in direction with a full rotation of 180 degrees, and, the shaft speed is low. It is a high torque power device and with magnetic gearing, the rotational...
