The simulator employs a number of precision resistors interconnected in a specially designed mesh network, simulating the input and output characteristics of a bridge circuit without introducing the drift problems of the latter.

These units my be used to calibrate readout systems and eliminate completely any possible error due to tolerances, ambiguity, miscalculation, etc, which can arise with spot calibrations furnished by otherwise employed method of shunting one bridge arm with a high value resistor.