Both resolvers and encoders are devices which calculate a shaft’s rotating location by translating mechanical motion into an electrical signal. Resolvers have a broader past as they were first used in military installations and then adapted in commercial applications because of their durable design. But now the scenario is changed, the encoder is taking place in many applications.
What are the key aspects which are driving the shift from resolver towards encoders?
The encoder is a solid-state device which produces a digital output, unlike the mechanical resolver.
Differences between encoder and resolver