-Voltage detection is routinely used to identify resistive regions within superconducting magnets so that a protection circuit can trigger a safe magnet discharge. Non-resistive voltage signals, for example inductive voltages, can however produce false signals causing the magnet protection system to trip prematurely. An experimental verification is given of a quench detection method which eliminates sensitivity to inductive voltages in multiple magnet systems.In addition, a specific application of these ideas for the U W Proof of Principle Experiment demonstrates the need for incorporating a microprocessor in the quench detection system.