A high-temperature double-mode piezoelectric ultrasonic linear motor

A miniature piezoelectric ultrasonic linear motor (piezoelectric vibrator sizes: 4.7 x 13.5 x 2 mm(3)) has been studied for precise actuation at 200 degrees C high-temperature. This piezoelectric linear motor was made of (1-x)BiScO3-xPbTiO(3) piezoelectric ceramic with a high curie temperature (428 degrees C) and it was operated in first longitudinal and the second bending double-mode. Our experimental results showed that the linear motor moves smoothly at the temperature as high as 200 degrees C with a driving force of 0.35 N and a speed up to 42 mm/s. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4747150]http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000308263100051&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701Physics, AppliedSCI(E)EI12ARTICLE7null10