Resolver

Resolver

A resolver (from the English resolver) is an electromechanical device that measures the angular position of a shaft and converts it into an electrical signal. It belongs to angular position sensors and is widely used in automation, robotics, aviation and industrial control systems.

How does a resolver work?

A resolver consists of:

• rotor - a moving part that rotates with the shaft.
• stator - a stationary part that receives a signal.

The principle of operation is based on electromagnetic induction, which allows you to receive a continuous analog signal.

Advantages of a revolver

Reliability - resistance to vibrations, dust, high temperatures due to a simple design.

Accuracy - high resolution of angle measurement.

Durability - no wearing contacts (unlike potentiometers).

Resolvers are used:

• in servo drives for precise positioning;
• in engine control systems, in particular electric vehicles;
• in radars and antennas for determining azimuth.

How does a resolver differ from an encoder?

A resolver and an encoder are angular position sensors, but:

• a resolver is analog, produces continuous sinusoidal signals;
• an encoder is digital, generates discrete pulses.

Due to their reliability and accuracy, resolvers remain indispensable in difficult operating conditions.

This section presents a part of revolvers, which forms a range of characteristics for any consumer. For an order or consultation, please contact the specialists of EURO-CONTRACT.