# 16 - SPECIAL HANNOVER MESSE

TrAC: A Piezo Actuator for Outer Space and Micro Robots

Courtesy of Cedrat Technologies

The Tripod Actuator (TrAC) is the prototype of a customized stepping piezo actuator designed by Cedrat Technologies. Stepping piezoelectric actuators are new, long-stroke linear piezoelectric motors for micro and nano positioning applications, locking mechanisms, valve actuators, instrumentation such as microscopes, non-magnetic equipment, micro robots and space telescopes. They operate by the addition of small steps. The TrAC can be blocked in any position (locking without power supply), offers high stiffness, nano positioning resolution all along the stroke and is non-magnetic. Compared to other piezoelectric motors, it offers greater miniaturization, robustness, longer working  life, space and vacuum qualification, and relatively low cost.


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