Rotary Encoder Disks (9 companies)
Rotary encoder disks are round or disk-shaped and have evenly-spaced holes or markings around their perimeter. Learn more about Rotary Encoder Disks

Linear Encoders (143 companies)
Linear encoders sense and digitize linear position change for positional measurement and feedback to control systems.
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Rotary Encoders, Absolute (177 companies)
Absolute rotary encoders use optical, mechanical, or magnetic indexing for angular measurement. They do not lose their position after power-down, but instead provide absolute position upon power-up without requiring a home cycle or any shaft rotation.
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Rotary Encoders, Incremental (252 companies)
Incremental rotary encoders are multi-turn sensors that use optical, mechanical, or magnetic index-counting for angular measurement. They contain no absolute reference, but instead count relative to the turn-on position.
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Rotary Position Sensors (139 companies)
Rotary position sensors include potentiometers, resolvers and a variety of magnetic and capacitive technologies. Sensors are designed for angular displacement less than one turn or for multiturn displacement.
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