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Ultrasonic Motor Stage

A high precision stage that can control positioning with as high resolution as 20 nm in a stroke range of several tens of mm.

Nano Control Co., Ltd.
 

Controller

A controller dedicated to the Ultrasonic Motor Stage with built-in driver and linear scale input circuit.

Nano Control Co., Ltd.


Technical Information

Mechanism of Stage

“Coarse movement feeding in millimeter ” and “fine movement feeding in nanometer” are possible.
Achieve long travel distance and high resolution concurrently.


Principles of movement

Rough motion and fine motion operation principle

(1) The piezo-electric element is slowly elongated and the trolley table advances.
(2) The piezo-electric element is abruptly shrunk and the friction part slides to move.
Repeat (1) and (2) above for rough motion in mm
(3) DC voltage is applied to the piezo-electric element for high precision positioning to the target position.
Even after stopping, linear scale signals are fed back to maintain the position control.

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