Article ID Journal Published Year Pages File Type
10409566 Sensors and Actuators A: Physical 2005 8 Pages PDF
Abstract
New DRIE actuator systems have been developed which use a high-force, linear actuator to wrap a flexible brake band around the rigid brake shoe of a large-deflection, rotary actuator. The brake can hold the rotary actuator at any arbitrary location within its full range of travel. A third actuator may be used to engage a pair of locking pins in order to keep the brake motor extended in the event of a power failure. The 100× increase in rotational stiffness after the brake is applied raises the fundamental resonant frequency by more than an order of magnitude, enabling precision optical adjustments over a large tuning range in the presence of external shock and vibration.
Related Topics
Physical Sciences and Engineering Chemistry Electrochemistry
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