of windings 90 degrees apart. Although a pair of resolvers could theoretically operate like a pair of synchros, resolvers are used for computation. A special T-connected transformer arrangement invented by Scott ("Scott T") interfaces between resolver and synchro data formats; it was invented to interconnect two-phase AC power with three-phase power, but can also be used for precision applications. See also Amplidyne Rotary encoder Resolver RVDT Servomechanism Servomotor Notes References AC instrumentation transducers Electric transformers Transducers