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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