An EDR operates on the principle of eddy current induction produced by a specialized flux concentrator coil. The pulsed magnetic field
is shaped in the time domain to first set up a very strong magnetic field, which is then rapidly reduced to induce a strong current in
the workpiece. This is accomplished by firing two high energy capacitor banks in a precisely timed sequence. The magnetic field set up
by the flux concentrator coil powerfully attracts the magnetic field associated with the induced current in the part, causing the part
to be reshaped around the area of highest flux concentration.