TRINAMIC Motion Control Maxon Precision Motors PI (Physik Instrumente) L.P. H2W Technologies Servo2Go.com Tolomatic, Inc. Aerotech, Inc QuickSilver Controls Inc. R+W America Electromate Inc. FAULHABER MICROMO Akribis Systems ARC Systems, Inc. Harmonic Drive LLC ABB Motion Neugart USA Parvalux Electric Motors USA JVL Industri Elektronik A/S
A servomotor is a rotary actuator or linear actuator that allows for precise control of angular or linear position, velocity and acceleration. It consists of a suitable motor coupled to a sensor for position feedback. It also requires a relatively sophisticated controller, often a dedicated module designed specifically for use with servomotors.
Servomotors are not a specific class of motor although the term servomotor is often used to refer to a motor suitable for use in a closed-loop control system.
Servomotors are used in applications such as robotics, CNC machinery or automated manufacturing.
More sophisticated servomotors use optical rotary encoders to measure the speed of the output shaft and a variable-speed drive to control the motor speed.