chapter  13
2 Pages

Conclusions

ByChunling Du, Chee Khiang Pang

Many secondary actuators have been developed in addition to primary actuators in the field of mechanical actuation systems. The aim is to provide high performance such as high precision and fast response. Several types of secondary actuators have been introduced such as PZT (Pb-Zr-Ti) milliactuator, electrostatic microactuator, PZT microactuator, and thermal microactuator. Comparison of these secondary actuators has been made, and these secondary actuators have made dual- and multi-stage actuation mechanisms possible.