This paper presents a novel, large-deflection piezoelectric folded cantilever microactuator (PFCM). A multimorph model for the large-deflection PFCM is derived, in which unified formulas for deflection angle and vertical displacement of N-level PFCM are obtained. Based on the model, multilayer PFCMs using PZT film are designed and optimized. The large-deflection PFCM is extensively applicable to microdevices or microsystem applications such as micro-optical switches, microelectromechanical systems (MEMS) scanners, and so forth.
Published in:
Ultrasonics, Ferroelectrics and Frequency Control, IEEE Transactions on
(Volume:53
,
Issue:
1
)
Date of Publication: Jan. 2006