What is a Resolver?

A resolver is a sensor primarily used to measure the rotational angle of a rotating body, allowing precise detection of the position. It is crucial for controlling and monitoring machinery, providing accurate measurements of rotation angle and position. Resolvers are commonly used in motors, robots, gyroscopes in aircraft, and other equipment where precise rotational angle measurement is required. They generate analog signals, offering higher precision and fault tolerance compared to digital encoders. Resolvers are particularly useful in harsh environments and are essential components for precision equipment and automated systems.

Application of Resolver

✅ Robot Joint Control
Resolvers are used in the joint parts of robots, allowing precise measurement of the rotational angles. This ensures accurate and controlled movements of robot arms and industrial robots.
✅ Gyroscopes in Aircraft
In aircraft, resolvers are used to measure the position of gyroscopes. This allows precise monitoring of the aircraft’s orientation and attitude, contributing to the safe operation of the plane during flight.
✅ Motor Rotational Angle Measurement
Resolvers are used to measure the rotational angles in motors, particularly in applications requiring precise position control, such as stepping motors and servo motors.
✅ Automobile Steering Systems
Resolvers are used in automobile steering systems to accurately detect the rotation of the steering wheel. This data is used for electronic power steering control, improving vehicle handling and safety.

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