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How repeatable is the motion of a piezo actuator?

April 26, 2017Actuator motion Piezo repeatable

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How repeatable is the motion of a piezo actuator?

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A piezoceramic actuator which is cyclically driven at a constant cycle time between the same two points will perfectly repeat its path every time. However, if the cycle time or either endpoint is changed, hysteresis and creep effects cause non-repeatable motions.