Using surface acoustic waves for actuation

Peter Breedveld


In close cooperation with the Philips Centre for Industrial Technology (CFT), researchers at the University of Twente are looking into the feasibility of positioning by means of surface acoustic waves (SAW). The SAW principle has been used in sensors and filters for decades, but until now little research has been done worldwide into using it for positioning purposes. The SAW motor, as the project is called, is very promising in the long term in applications where there is a need to work in a vacuum (in space, for instance) because no lubrication isnecessary. Another romising area of application is in situations where the use of an electromotor would create disturbances because of the motor?s magnetic fields. ?For the SAW motor to be applied in consumer products, we have to wait until it can be mass-manufactured.?



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