Contactless position sensors

Contactless position sensors  (Exxelia Technologies)

To address demands for longer service life and with its strong track record in contact technology position sensors (potentiometers), the CSA Business Unit at Exxelia Technologies has been developing own-brand contactless sensors for nearly 10 years. These sensors are absolute and incremental optical encoders, magnetic technology (Hall effect) and inductive sensors.

Absolute optical encoders: absolute optical encoders are position sensors that use optical signals to identify an absolute angular position. The Exxelia Technologies encoders offer very high performance levels for a very small footprint:

  • high precision (<30arcsec),
  • high resolution (up to 21bits),
  • thin (10mm),
  • EMI EMC compatibility

Incremental optical encoder: absolute optical encoders are position sensors that use optical signals to identify an absolute angular position. Incremental encoders have to be initialized by a first turn to produce an absolute position.

Hall effect sensors: digital or analog contactless sensors supplying a variable output voltage that is linearly proportional to the displacement, or the rotational or linear motion.

Applications : Aeronautics, Defense, Rail, Medical, Oil exploration, Telecommunications