Authored by: George Ellis, Chief Engineer, Servo Systems, Kollmorgen, Radford, Va. Key points: Three key measures — accuracy, response, and robust stability — characterize how servosystems perform.

The International Electrotechnical Commission (IEC) defines a servo device as “an adjustable-speed AC power drive system that includes an AC motor integrated by feedback, a converter, and control, ...

Transmitting rotary power from one shaft to another is a servo coupling's primary function. Doing this in the most productive manner is a shared goal in industrial applications, which involves ...

It is possible to economically produce non-rotational symmetric surfaces including freeform surfaces on Precitech’s two-axis diamond turning lathes, the Precitech Nanoform 200, 350 and 700 systems ...

A motor-drive servo amplifier's output voltage has a fundamental frequency and amplitude that corresponds to the motor speed, torque, and number of motor poles. PWM amplifiers, by their nature, also ...