PIFOC^® Long Range Microscope Objective Positioners & Scanners with Capacitive Sensors

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PIFOC^® Long Range Microscope Objective Positioners & Scanners with Capacitive Sensors

 

The product You were Looking for was moved Click Here for new Address P-725 PIFOC® Long Range Microscope Objective Positioners & Scanners with Capacitive Sensors Scans and Positions Objectives with Sub-nm Resolution High Linearity and Stability with Direct-Measuring Capacitive Sensors Travel to 500 ?m Most-Compact Unit with Direct Metrology Enhanced Guiding Precision for Better Focus Stability Fast Response & Settling Time Compatible with Metamorph™ Imaging Software Quick Lock Adapter for Easy Attachment P-725s are long-range-travel additions to our PIFOC® family of microscope objective nanofocussing devices. Despite the increased travel ranges (up to 500 ?m) the units are 20% shorter than the P-721 series (see link), while providing sub-nanometer resolution. The long travel range is achieved with a newly designed, friction-free and extremely stiff flexure system which also offers high guiding accuracy and rapid settling. P-725 PIFOCs® are screwed between the turret and the objective, extending the optical path by only 12.5 mm (infinity-corrected microscope required; extension tubes are available to adjust path lengths of other objectives on the turret). Superior Accuracy Through Direct-Motion-Metrology Capacitive Feedback Sensors P-725s are equipped with direct-measuring capacitve position sensors. Unlike conventional indirect systems, they measure the position rather than strain in the actuator / guiding system. Capacitive sensors are absolute-measuring devices and show none of the periodic errors found in incremental linear encoders. This permits motion linearity of better than 0.03% and resolution in the sub-nanometer range. This technique, combined with the inherent precision of the non-contact, two-plate capacitive sensor and the temperature-compensated design, results in higher linearity scans, and provides superior responsiveness, resolution, repeatability and stability at the nanometer level. Fastest Step-and-Settle: 25 Milliseconds for 250 Microns The P-725.2CL can perform a 250 ?m step to 1% accuracy in only 25 ms (E-665.CR controller no load) and 50 ms with a load of 150 g. A variety of analog and digital controllers (OEM, bench-top and rackmount) are available to drive the units. The P-725.xCD model can be operated with the new E-665 servo-controller through an analog or RS-232 interface (see link)or the E-750 high-speed digital NanoAutomation® controller (see link). This controller also features a number of options such as high-throughput PIO (parallel I/O) or fiber link interfacing and InputShaping® signal processing for even faster settling. Increased Lifetime with New Piezoceramic The P-725 PIFOC® units are driven with PI Ceramic's PICMA® high-performance, multilayer piezo ceramic actu-ators. These newly designed and highly optimized drives are more robust than conventional piezo actuators, and feature superior lifetime in dynamic and static applications. Because guidance and sensors are all frictionless and maintenance-free, PIFOC® systems achieve exceptional levels of reliability. Working Principle PIFOC® positioners are equipped with high-performance piezoelectric drives integrated in a sophisticated flexure guiding system. The force exerted by the piezo drive pushes a flexure parallelogram via an integrated motion amplifier. The wire-EDM-cut flexures are FEA modeled for zero stiction/friction, high resolution and exceptional guiding precision. An integrated, direct-measuring, non-contact, two-plate capacitive position sensor provides the highest possible resolution, linearity and stability in closed-loop operation. Other PIFOC®s PIFOC®s are also available in different form factors (P-721, see link) and for open loop operation only (P-720, see link). Custom units for moving the whole turret are available on request. Quick Lock The new quick lock thread adapter options allow Easy attachment of the PIFOC® to the microscope. Flexible use of different thread adapter options with one PIFOC® nanofocussing device. After the thread adapter is screwed into the microscope, the PIFOC® is attached to the adapter with the quick lock system in the desired position. Mounting does not require rotation of the PIFOC® unit, so there are no cable twisting issues. Be sure to order the required thread adapters separately: the basic P-725 PIFOC® units do not include any quick lock thread adapters. Scanning interferometry Surface structure analysis Disk drive testing Autofocus systems Confocal microscopy Biotechnology Semiconductor test equipment P-725.2CL with quick lock option P-721.12Q for W0.8 x 1/36" threads and objective. 25 ms for a 250 ?m step-top dynamic performance of the P-725.2CL PIFOC®. P-721.12Q Quick lock thread adapter, exploded view with microscope objective and PIFOC®. Mounting tools are included. Dimensions of the P-725 in mm (dimensions in mm, thread adapter ordered separately, decimal places separated by commas in drawings).

Technical Data

Models	P-725.1CL, P-725.1CD	P-725.2CL, P-725.2CD	P-725.4CL, P-725.4CD	Units	Notes see link
Max. objective diameter	39	39	39	mm
Min. Open-loop travel @ -20 to 120 V	150	330	460	?m ?20%	A2
Closed-loop travel	100	250	400	?m	A5
Integrated feedback sensor	Capacitive	Capacitive	Capacitive		B
Closed-loop ** resolution	0.65	0.75	1.25	nm	C1
Closed-loop linearity (typ.)	0.03	0.03	0.03	%
Full-range repeatability (typ.)	?5	?5	?5	nm	C3
Stiffness	0.25	0.2		N/?m ?20%	D1
Push/pull force capacity (in operating direction)	100 / 20	100 / 20	100 / 20	N	D3
Tilt (qX) (typ.)	1	6	18	?rad	E1
Tilt (qY) (typ.)	20	45	25	?rad	E1
Lateral runout (Y) (typ.)	40	40	40	nm	E2
Electrical capacitance	4.2	6.0	6.0	?F ?20%	F1
* Dynamic operating current coefficient (DOCC)	4.0	2.5	1.9	?A/(Hz x ?m)	F2
Unloaded resonant frequency	530	330	200	Hz ?20%	G2
Resonant frequency @ 120 g load	205	180	115	Hz ?20%	G3
Resonant frequency @ 200 g load	160	140		Hz ?20%	G3
Operating temperature range	- 20 to 80	-20 to 80	-20 to 80	?C	H2
Voltage connection		P-725.xCL: VL; P-725.xCD: D			J1
Sensor connection		P-725.xCL: 2uC; P-725.xCD: D			J2
Weight (with cables)	215 (230)	230 (245)	230 (245)	g ?5%
Body material	Al	Al	Al		L
Recommended driver/controller (codes explained see link)	H, M, F	H, M, F	H, M, F
* Dynamic Operating Current Coefficient in ?A per hertz and ?m. Example (P-725.2C): Sinusoidal scan of 30 ?m at 10 Hz requires approximately 0.75 mA drive current. ** Resolution of PI Piezo NanoPositioners is not limited by friction or stiction. Noise equivalent motion with E-503 amplifier.

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P-725.1CL*
PIFOC^® Objective Positioner & Scanner, 100 ?m, Capacitive Sensor, LEMO Connectors, for Quick Lock Thread Adapters

P-725.1CD
PIFOC^® Objective Positioner & Scanner, 100 ?m, Capacitive Sensor, Sub-D connector, for Quick Lock Thread Adapters

P-725.2CL*
PIFOC^® Objective Positioner & Scanner, 250 ?m, Capacitive Sensor, LEMO Connectors, for Quick Lock Thread Adapters

P-725.2CD
PIFOC^® Objective Positioner & Scanner, 250 ?m, Capacitive Sensor, Sub-D connector, for Quick Lock Thread Adapters

P-725.4CL*
PIFOC^® Objective Positioner & Scanner, 400 ?m, Capacitive Sensor, LEMO Connectors, for Quick Lock Thread Adapters

P-725.4CD
PIFOC^® Objective Positioner & Scanner, 400 ?m, Capacitive Sensor, Sub-D connector, for Quick Lock Thread Adapters

*Also Available w/o Sensor (Open-Loop): P-725.10L, P-725.20L and P-725.40L.

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