His post says that most industrial absolute encoders use a special magnetic sensor known as a Wiegand wire to control costs. To demonstrate he does a teardown of an encoder made by Nidec Avtron ...

The AZ16 Series absolute encoder/indicator mounts on movable slides and stop systems. Combined with a magnetic sensor, the battery-powered "stand-alone" unit requires no wiring, and the battery ...

Servotecnica SpA has several years’ experience in customized design and manufacture of its SVTM series rotary actuators.