absolute encoder absolute encoder /ˈæbsəluːt ɪnˈkoʊdər/

noun

1. A rotary encoder that maintains position information when power is removed from the system.  ( absolute encoder )
   a rotary encoder that maintains position information when power is removed from the system.
    The output of absolute encoders indicates the current position of the shaft, making them angle transducers.
   The output of absolute encoders indicates the current position of the shaft, making them angle transducers.