Quote:
Originally Posted by Ether
Well, it actually is connected to the circuit, albeit inductively via the transformer formed by the lead wire and the coil wrapped around it.
Since the current to the motor may contain a large ripple under various operating conditions due to the interaction of the speed controller PWM switching, the motor inductance, and the motor commutation, there may be some issues involved in interpreting the measurements.
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Entirely correct. I just wonder if it is even allowed in FRC competition external to an approved FRC electronic motor control (regardless of the issues of making it work).
Of course by extension of being connected by inductance anything that passes through the magnetic field around the wire and can have a current induced in it is connected in a similar way albeit poorly. Parts of the robot that are not designed to be electrical but can carry a current for example. So generally not recommended to wrap a nice piece of copper wire around your other wires to act like a wire guide or retainer.