The titanium vacuum chambers (TVC) which will be installed in the ZGS are equipped with pole face windings for correction of the eddy current fields. A prototype of the chamber and correction windings has been installed in a spare magnet block test fixture for measurement of the eddy current fields as a function of radial position and time. The ten difference signals from 20 test coils are read into a SEL-810A computer. The computer displays the measured gradient on a scope, either as a function of radial position at a selected time during the magnet pulse or as a function of time at a selected position. Thus, the result of applying compensating pulses to the pole face windings can be shown directly.