Synchro & Resolver

A device called Selsyn was developed at 1925

Synchro

Theory

Synchro is variable rotary transformer.

Synchro

Classification

Transmitter

Control Torque

Synchro

Classification

Receiver

Control Torque

Synchro

Classification

Differential Transmitter

Control Torque

Synchro

Classification

Control Torque

Synchro

Advantages

The controlling unit can be along distance from the controlled unit.

Low consumption. Eliminates the necessity of mechanical linkage. Continues accurate and visual information. Good reliability and minimum maintenances . Small and light. Very fast.

Resolver

Resolver

Theory

Signal Conditioning

Resolver-To-Digital Converter(RTD /RDC) Basic Undersampling Oversampling

RTD

Basic

.

RTD

Undersampling

RTD

Undersampling

RTD

Oversampling

Oversampling

TMS320F240

Resolver Advantages

Accurate Absolute Position Sensor Small size Well-suited to severe industrial environments Not require ohmic contact. High reliability

Synchro& Resolver

Application

Naval weapons Radar antennas Aerospace Robotics