Text version of the page 
Text version of the page 
Introduction PI Ceramic piezoelectric actua-tors offer today´s motion engi-
neer and scientist a practical
way to achieve extremely high
positioning accuracy, shortest
possible response times, best
dynamic operation and largest
forces in a wide variety of
applications. Presently piezo-electric actuator based motionsystems increasingly replace
classical motion technolo-
gies—improving products in
terms of miniaturization, preci-
sion and throughput. In addi-
tion, the unique features of
piezoelectric actuators will trig-ger the development of motionequipment that could not even
exist without this technology.
PI Ceramic, a member of the PI
Group, offers the largest selec-
tion worldwide of research-and industrial-reliability piezo-industrial electric actuators. In addition to
the standard Piezoelectric
products presented in this
short catalog, we focus on cus-
tom designs tailored to our
customer´s requirements.The highly vertically integratedstructure of the PI Group
allows control of each manu-
facturing step, beginning at the
raw material up to finished
NanoPositioning systems,including electronic drivers,amplifiers and controllers. This
comprehensive development
and manifacturing know-how
of electromechanical compo-
nents and systems is unique in
the world.Since the piezoelectric effectexhibited by natural monocrys-
talline materials such as quartz,
tourmaline, Rochelle salt, etc.
is very small, polycrystalline
piezoelectric ceramic materi-als, such as lead (plumbum)zirconate titanate (PZT), with
improved properties have been
developed. PZT ceramics are
available in many variations
and are by far the most widely
used materials for piezoelectricactuator applications today. The poling process in ferroelectric ceramics. Electric dipoles: (1) unpoled ferro-electric ceramic, (2) during and (3) after poling (piezoelectric ceramic) PZT unit cell: 1) Perovskite-type lead zirconate titanate (PZT) unit cell in thesymmetric cubic state above the Curietemperature 2) Tetragonally distorted unit cell below
the Curie temperature Applications for Piezoelectric Actuators Optics and Photonics Precision Mechanics Life Sciences, Medicine,Biology Vibration Cancellation Adaptronics Mechanical Engineering Measuring Technologies Microelectronics Disk Drive © PI 1998–2006. Subject to change without notice. This data sheet is superseded by any newrelease. The newest release is available for download at www.pi.ws. 06/10/30.0 38
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