!!hot!! — Synchro And Resolver Engineering Handbook Moog Inc

The Moog handbook emphasizes the synchro's historical role in analog computing and remote positioning. Before the advent of cheap microprocessors, entire fire control systems for artillery and radar dishes were linked by synchro wires, creating a "mechanical internet" of sorts, where angular data was shared instantaneously across a ship or aircraft.

The resolver, conversely, is a computational and sensing device. It typically utilizes a two-wire stator (S1, S2, S3, S4) and a rotor winding. The Moog handbook highlights the resolver’s utility in performing trigonometric calculations. Because the output voltages of a resolver correspond to the sine and cosine of the rotor angle, they are naturally suited for resolving vector coordinates (hence the name).

: Detailed explanations of synchros as variable coupling transformers, covering transmitters, receivers, and control transformers.