High Speed Magnetic Rotary Encoder

Primarily made by Austrian MicroSystems, these encoders use an array of hall effect sensors to accurately sense the angular position of a shaft (or anything that rotates with a magnet). This technology is cheap, continuous, and provides an absolute position – meaning that the motor controller has much better information to work with when magnetizing the windings.


Figure 1: from directindustry.com


Some example product details: AS5134_Factsheet_v1_7, http://ams.com/eng/Products/Magnetic-Position-Sensors

High Speed Magnetic Rotary Encoder

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