Method of actuating a system, apparatus for modifying a control signal for actuation of a system and method of tuning such an apparatus
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United States of America Patent
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Dec 10, 2013
Grant Date -
Jan 6, 2011
app pub date -
Oct 7, 2009
filing date -
Jan 14, 2009
priority date (Note) -
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Abstract
A method of actuating a system comprising a movable component and an actuator configured to move the movable component comprises providing a control signal representative of a desired motion of the movable component. The control signal is supplied to one or more resonators. Each of the one or more resonators has a mode of oscillation representative of at least one elastic mode of oscillation of the system. The control signal is modified by subtracting from the control signal a signal representative of a response of the one or more resonators to the control signal. The actuator is operated in accordance with the modified control signal. Thus, undesirable elastic oscillations of the system which might occur if the system were operated with the original control system can be reduced.
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