Rozum Robotics has created a closed-loop motion control system with two position encoders integrated into RDrive servo motors. In this system, a controller sends a command to a robotic joint and receives a feedback signal with position and speed data from the enc
Rozum Robotics has created a closed-loop motion control system with two position encoders integrated into RDrive servo motors. In this system, a controller sends a command to a robotic joint and receives a feedback signal with position and speed data from the encoders.
The feedback sensors enable tracking the position or speed of the motor by converting mechanical motion into electrical signals and transmitting the signals to the controller (or another master device).
Based on the type of output, encoders can be either absolute or incremental. Devices of the incremental type report changes of the motor position without providing any feedback on where exactly the motor has moved. Absolute encoders indicate both the change of the motor position and the exact location of its position.
The output of an incremental encoder is a continuous series of pulses—phase-shifted square-wave signals. All measurements are referenced to a start point. To determine the motor position, one has to know where the