Absolute rotary encoders with magnetic detection

04 June 2013

Absolute rotary encoders with magnetic detection principle from Pepperl+Fuchs are said to combine compact designs, robustness, and service life with high resolution and accuracy.

The single turn absolute rotary encoders are based on two-axis Hall sensors. These encoders can be turned into multi-turn absolute rotary encoders through the addition of a Wiegand sensor.

The advantage of the magnetic functional principle is its compact installation dimensions and the fact that it is a non-contact sampling system. This means that there is no mechanical gear that can wear and requires maintenance and servicing.

Resolutions of 12 bits are currently possible with singleturn versions, while resolutions of up to 39 bits can theoretically be achieved with multiturn versions. The standard resolution is 12, 16, or 18 bits.

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