Closed-Loop, High-Deflection PICMA^® Multilayer Piezo Bender Actuators

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Closed-Loop, High-Deflection PICMA^® Multilayer Piezo Bender Actuators

 

The product You were Looking for was moved Click Here for new Address P-871 Closed-Loop, High-Deflection PICMA® Multilayer Piezo Bender Actuators 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 Mounting Hardware Included 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 better linearity, accuracy and repeatability than other piezo benders on the market. P-871 bender actuators achieve longer positioning ranges than typical piezo actuators, up to 1.6 mm, and response times in the millisecond range. For ease of installation, the units come complete with the mounting hardware, cables and connectors. Long Lifetime and High Performance-Ideal for Dynamic Operation 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. Closed-Loop Position Control for Higher Accuracy P-871s are ideal devices for scanning, positioning and beam deflection applications and provide much better accuracy, stability and repeatability than conventional open-loop actuators. The special bender design allows the direct application of a strain gauge sensor to the surface without the need for a polymer insulation layer in between. The advantages are faster response, reduced phase lag and precise position control with non-linearity of only 0.5 %. The settling time for a small-signal step (up to 1% nominal travel) to an accuracy of better than 1% is between 10 ms (P-871.112) and 30 ms (P-871.140). Amplifiers, Drivers & Controllers PI offers a wide range of standard amplifiers and controllers for piezo actuators.The E-651.1S and E-651.2S controllers and the E-614.2BS OEM board are specifically designed to operate P-871 bender actuators. Of course, PI also designs custom actuators, amplifiers and controllers. Wire bonding Fiber optic switches Beam deflection and stabilization Scanning of optical components Alignment of optical components P-871.140, P-871.128, P-871.122 and P-871.112 closed-loop bender actuators (from left to right). E-651 2-channel and 1-channel controllers with P-871 bender actuators Dimensions of P-871

Technical Data

Models	P-871.112	P-871.122	P-871.127	P-871.128	P-871.140	Units
Closed-Loop Deflection	±80	±200	±360	±360	±800	µm
Integrated Feedback Sensor	SGS	SGS	SGS	SGS	SGS
Closed-loop linearity	0.5	0.5	0.5	0.5	0.5	%
Stiffness [N/µm]	0.02	0.01	0.003	0.002	0.0007	N/µm
Blocking force	2.0	1.1	1.0	0.5	0.5	N
Electrical capacitance	2 x 1.1	2 x 1.6	2 x 2.3	2 x 1.2	2 x 2.7	µF
Unloaded resonant frequency	2540	1010	560	340	195	Hz
Resonant frequency @ 6.5 g load	480	220	145	100	60	Hz
Mass (incl. cables)	33.5	34.5	34.5	34.0	35.5	g
Recommended Driver / Controller	E-651 / E-614	E-651 / E-614	E-651 / E-614	E-651 / E-614	E-651 / E-614
Operating Voltage: 0 to 60 V Cable Length: >1000 mm Connector: 1 LEMO connector for both sensor and voltage supply Parameters depend on applied load Operating Temperature: -20 °C to +150 °C Specifications subject to change without notice.

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P-871.112
Closed-loop Piezo Bender Actuator, 160 µm, 9.6 mm Width, SGS

P-871.122
Closed-loop Piezo Bender Actuator, 400 µm, 9.6 mm Width, SGS

P-871.127
Closed-loop Piezo Bender Actuator, 720 µm, 9.6 mm Width, SGS

P-871.128
Closed-loop Piezo Bender Actuator, 720 µm, 6.3 mm Width, SGS

P-871.140
Closed-loop Piezo Bender Actuator, 1600 µm, 11.0 mm Width, SGS