PI News: Motion Controller Enables Picometer Positioning Resolution with 24 Bit D/A Aug 29, 2007

PI (Physik Instrumente) L.P. — a leading manufacturer of nanopositioning and piezo-based precision motion-control equipment for bio-nanotechnology, photonics and semiconductor applications — offers the new E-755 ultra-high-resolution motion controller. The controller is designed to drive NEXLINE® linear motor actuators and enables the combination of long travel ranges and picometer resolution.

More Information: http://www.physikinstrumente.com/en/products/prdetail.php?sortnr=600690&NR

Features & Advantages:
 Special Control Algorithms for NEXLINE® PiezoWalk® Nano Drives
 32-Bit Digital Filters, 24-Bit DAC Resolution, Integrated Piezo Amplifiers
 Fully Programmable Low-Pass and Notch Filters
 Non-Volatile User Settings and Last-Position Data

Typical Applications: Nanotechnology, Nano-Imprint, Semiconductor & Data-Storage Test & Production Equipment, Nanomanipulation, Bio-Technology.

Closed-Loop and Open Loop Operation, Dithering Mode
NEXLINE Controllers can be run in closed-loop and open-loop mode. They provide an input for the nanometer precision incremental linear encoders that are integrated in standard NEXLINE® actuators. Due to the low-noise, 24 bit D/A converters, the E-755 controllers can provide picometer level resolution in the highly-dynamic short-range / dithering mode that the actuators support.

NEXLINE® Linear Motor Actuators: How they work
NEXLINE® is a patented high-force, ultra-high-precision linear motor actuator developed to bridge the gap between micro- and nanopositioning technology. The highly reliable, all-ceramic NEXLINE® drives have won a technology award from the semiconductor community and are ideally suited for static and dynamic high-precision positioning of high loads. PI currently offers 3 standard Nexline actuators (N-110, N-214, N-215) for closed- and open-loop operation with maximum loads up to 60 kg.

Controller Features Linearization, 24 Bit D/A Converters, Picometer Resolution
The new E-755 NEXLINE® motion controller combines sophisticated control algorithms, high-end 32-bit digital filters and output drivers with extremely low-noise, 24-bit D/A converters. In closed-loop operation, outstanding linearity, within 0.001% over the full travel range, is achieved by polynomial linearization.

Software Support
The E-755 controllers come with an extensive software package including LabVIEW drivers for simple and flexible automation of nanopositioning tasks.

About PI
PI is a leading manufacturer of nanopositioning and precision motion-control equipment for photonics, nanotechnology, semiconductor and life science applications. PI has been developing and manufacturing standard & custom precision products with piezoelectric and electromagnetic drives for 35+ years. The company has been ISO 9001 certified since 1994 and provides innovative, high-quality solutions for OEM and research. PI is present worldwide with eight subsidiaries and total staff of 450+.

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