P-871 Cost Effective Closed-Loop Multilayer Piezoelectric Bender Transducer / Actuator

• Closed-Loop Operation for Superior Accuracy
• Nanometer-Range Resolution
• Deflection up to 1.6 mm
• Ceramic Insulation for Extended Lifetime
• Ideal for Scanning Applications
• Vacuum-Compatible Versions
• Low Operating Voltage
• Special Controllers / Drivers Available

P-871 transducers are unique closed-loop piezo benders based on the open-loop PL122 to PL140 PICMA®-series multilayer actuators. Equipped with high-resolution position feedback sensors they provide much better linearity, accuracy and repeatability than open loop piezo benders.

PICMA® Bender actuators are superior to conventional actuators in high-endurance situations. They show substantially longer lifetimes both in static and dynamic operation, even in harsh environments. The monolithic, ceramic-insulated design makes polymer-film insulation unnecessary. Diffusion of water molecules into the insulation layer, the major cause of dielectric breakdown, is greatly reduced by the use of cofired, outer ceramic insulation.

More on the Reliability of PICMA Piezo Multilayer Actuators

More on the Bender Actuators:

http://www.physikinstrumente.com/en/products/prdetail.php?sortnr=101780

More on Piezo Bender Motion Controllers:
http://www.physikinstrumente.com/en/products/prdetail.php?sortnr=602120

http://www.pi-usa.us/technotes/PICeramic_Paper_Piezoeletric_Reliability_ACTUATOR2006_m.pdf