Long Lifetime and HighPerformance—Ideal for
Dynamic Operation PICMA Amplifiers, Drivers &Controllers
PL112 – PL140
PI offers a wide range of stand-ard amplifiers and controllers
for piezo actuators. The E-650.00 and E-650.OE driverswere specifically designed to
operate PICMA
PICMA
® Multilayer Piezo Bender Actuators
Bender actuators with optional wire leads (order number extension .x1); microprocessor for size comparison ® Bender actuators aresuperior to conventional actua-tors in high-endurance situa-
tions. They show substantially
longer lifetimes both in static
and dynamic operation, even
in harsh environments. Dif-
fusion of water molecules into
the insulation layer is greatlyreduced by the use of cofired,outer ceramic encapsulation.The high Curie temperature of320 °C gives PICMA
® Bender actua-tors. For closed-loop position-ing applications, a variety of
analog and digital controllers
is available. Of course, PI also
designs custom amplifiers and
controllers. Ceramic Encapsulation Advantages Positioning Range up to 2 mm PICMA Fast Response (<10 msec)
® actuatorsa usable temperature rangeextending up to 150 °C, well
above the 80 °C limit of con-
ventional multilayer actuators.
At the low end, operation
down to a few Kelvin is possi-
ble (with reduction in per-formance specifications). Nanometer-Range Resolution Low Operating Voltage Vacuum-Compatible Versions Available with Integrated
Position sensor Special OEM and Bench-Top Amplifiers/Drivers Available Optimum UHV Compatibility— No Outgassing The lack of polymer insulationand the high Curie temperature
make for optimal ultra-high-
vacuum compatibility (no out-
gassing / high bakeout temper-atures, up to 150 °C). PICMA
® -series multilayer ben-der piezo actuators provide a
deflection of up to 2 mm,
forces up to 2 N (200 grams)
and response times in the mil-
lisecond range. These multi-layer piezoelectric componentsare manufactured from ceram-
ic layers of only about 50 µm
thickness. They feature internal
silver-palladium electrodes
and ceramic insulation applied
in a cofiring process. The ben-ders have two outer activeareas and one central
industrial electrode
network dividing the actuator
in two segments of equal
capacitance, similar to a classi-
cal parallel bimorph.
® Bender piezo actuatorsoffer several advantages overclassic bimorph components
manufactured by gluing
together two ceramic plates
(0.1 to 1 mm thick). The main
advantage is the drastically
reduced (by a factor of 3 to 10)operating voltage of only 60 V.The reduced voltage allows
smaller drive electronics and
new applications, such as in
medical equipment. Addition-
ally, these devices offer im-
proved humidity resistancedue to the ceramic encapsu-lation.
Application Examples Wire bonding Pneumatic valves Fiber optic switches Beam deflection Micropositioning
Custom closed-loop bender actuator with strain gauge sensor applied for position measurement © 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 24