ILC Data Device Corp / DDC SR-203 / SR203 Synchro / Resolver Angle Indicator

The SR-203 is a high quality angle indicator suitable for use in precision synchro and resolver test equipment. The unit consists of a precision analog-to-digital tracking converte configured to accept synchro or resolver signals from a front panel input channel or either of two rear connector input channels. The instrument continuously converts the selected synchro or resolver inputs into BCD angular dta and siplays it on the front panel. Since the instrument can accept a broad range of voltages and frequencies without programming and signal to reference phase shifts of +/- 50 degrees (max), the SR-203 can quickly accomodate a variety of inputs. Using a type II servo loop for continuous tracking, the instrument exhibits no velocity lag up to the specified tracking rates. No hangup can occur 180 degrees away from input angle.

In addition to serving as a high performance bench instrument, the SR-203 can be used wherever accurate angle information is required for display, control, testing or computation. Applications include production testing of synchros and resolvers, information translators in quality control systems, machine tool control, ship and aircraft navigation ystems, and antenna positioning.