A potentiometer is a passive, mechanical component inside a housing. It consists of a resistive track and a movable contact, called wiper, whose position along the resistive element can be set with an actuator. The two ends of the resistive element and the end of the wiper can be accessed ...
Current consumption is inside 700μA. Figure 8 shows the circuit acquiring a full-scale input. Trace A is the sample-hold command, while Trace B is the circuit's output. Trace C, an amplitude expanded version of B, shows acquisition detail. The input is acquired within 125μs and sample...
The electronics are mounted inside a simple aluminium box attached to a stem made from a length of tube which extends down to the search coil and serves as the handle. Connection to shield the search coil is via a length of shielded cable. The controls mount on one side of the box ...