How fast can I scan with your stage?

The scanning speed of a stage depends on the resonant frequency of the stage and the control scheme that is employed in the controller. As a general rule, the maximum full-range scanning speed of a stage is approximately equal to one tenth of the resonant frequency. This will prevent destruction of the stage but it will not guarantee excellent response. The response of the stage is characterized by the delay (phase-lag) between the actual position and the commanded position. For most of our nanopositioning stages an excellent response is present for scanning speeds of up to 10Hz. The phase lag increases noticeably for higher scanning speeds. Advanced control schemes can be implemented in order to optimize the response for high scanning speeds. Note: the resonant frequency of the stage can be lowered significantly when a heavy sample is mounted on it.

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