Disturbance rejection, like command tracking, is usually expressed graphically. The graphs, called disturbance rejection plots, show the effect of PIV gains on disturbance torque applied to the shaft ...

Many motion applications require high accuracy during and at the completions of moves. Even with perfectly optimized PID (proportional, integral, derivative) values to control position, the ...

A brushless-DC motor is common in ceiling fan and pan-tilt-zoom (PTZ) camera designs. But you can’t use the same brushless-DC motor solution for both of these end products. A ceiling fan driver ...

Promoted as a true black-box solution, the ServoStep motion control system integrates a high-torque, 50-pole stepping motor, motion controller, drive-amplifier, and an encoder in a NEMA 34 frame size.

Motor runaway conditions not only increase expenses, but can also create dangerous situations. The incorporation of a Velocity Limited Torque Mode function on a servo system can mitigate runaway motor ...

In a speed controller, the motor’s speed (or velocity) is being controlled. There is an element that detects speed, whether it be a tachometer or some sort of encoder. This monitoring element provides ...

Kinematics The LWR III has 7 revolute joints for good manipulation capabilities in a changing workspace with unpredictable obstacles. As the arm is dedicated to operate the DLR artificial Hand II for ...

Maxon has launched a range of back-drivable electromechanical joints for humanoid, quadruped and other mobile autonomous robots. The larger HEJ 90 (pictured) is aimed at locomotion, and generates up ...