Piezoelectric Actuators
The planar disposition of the two ceramic
plates means that the high fields can be
applied without danger of repolarising the
ceramic. This is different from a
conventional bimorph structure.
The first arm of the actuator produces a
downward movement which provides an
angle for the movement amplification of the
second arm. The total movement is slightly
less than could be obtained from a single
beam of twice the length.
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