Resolution
The minimum step size the stage can move. It is usually defined by the position noise.
How does the step response specification relate to scanning speed?
A nanopositioner with a high resonant frequency will have a fast step response specification. A nanopositioner with a fast step response specification allows the user to increase the bandwidth of the control loop. A high bandwidth control loop reduces phase delay, which in turn allows the user to scan at an increased rate. Phase delay […]