Rotary Position Sensor
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Rotary position sensors are used to track the rotational position of a shaft. This can be either absolute or relative position.
Contents
Terms
Relative Position
Absolute Position
Multi-turn
Resolution
Accuracy
Repeatability
Potentiometer
Encoder
Encoders typically output a digital signal.
Hall-effect
Uses a magnet to detect the rotation of a shaft.
Optical
Similar to Hall-effect encoders, but using optics instead.
Transmissive
Reflective
Analog
Produces a signal similar to a resolver. Also known as a sin-cos encoder.
Capacitive
Inductive
Resolver
Can have multiple poles. Analog signal signal output.
