Magnetic Absolute Encoders！

Many applications require resistance to extremely high shock and vibration, widet emperature variations, or high humidity with condensation.Stegmann magnetic absolute encoders meet these unique challenges.

Magnetic field strength of a proprietary 32-pole magnetic
ring is measured using twostrategically spaced magneto resistors that pick up variation of the magnetic field intensity along the circumference of the ring.The resulting 32 sine/cosine signals per turn (5-bit) are the enhanced by 8 bit

interpolation. A single northsouth pole magnet, read by a Hall effect sensor, is used to
assign absolute values to individual sine/cosine cycles.Thus, the 32-pole magnetic
ring encoder is calibrated for a 13-bit single-turn absolute position encoder feedback. Additional software is
used to compensate for temperature variation and resulting differential thermal
expansion to insure data integrity.

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