PI nanopositioning controller offers two notch filters

Jan. 22, 2011
The E-709 nanopositioning controller provides fifth-order polynomial digital linearization for higher accuracy than analog, and has two notch filters, piezo operation, and DAC-in-the-loop architecture.

The E-709 nanopositioning controller provides fifth-order polynomial digital linearization for higher accuracy than analog, and has two notch filters, piezo operation, and DAC-in-the-loop architecture. It utilizes USB, RS-232, Real Time Analog, and TTL interfaces, and software support includes Windows .dll, Linux .so, and LabVIEW .llbs. Applications include bio- and nanotechnology, semiconductors, lithography, and optics.
PI (Physik Instrumente)
Auburn, MA

[email protected]

More Products



E-709: Affordable Digital Piezo Nanopositioning Controller for the Cost of Analog

Auburn, MA -- piezo system specialist PI introduces a breakthrough development in nanopositioning stage control. The new E-709 provides digital functionality at the price-point of an analog controller, all in the volume of a paperback book! The true digital servo performance comes without compromise:

Features and Advantages

  • 5th order polynomial digital linearization ensures higher accuracy than analog
  • 2 notch filters allow faster response and piezo operation at higher frequencies
  • A fast servo update rate ensures responsiveness
  • DAC-in-the-loop architecture guarantees positional stability
  • Several high speed interfaces: USB, RS-232, Real Time Analog and TTL
  • Easy-to-use setup software for remote access and servo tuning. No trimpots!
  • Extensive, well-documented, interface-independent software support includes Windows .dll, Linux .so, and LabVIEW .llbs

Datasheet & More Information: http://www.physikinstrumente.com/en/news/fullnews.php?newsid=169

Digital Piezo Control Functionality at a Breakthrough Price-
One-Third of the Nearest Competitor

The E-709 opens up the possibilities of digital control for piezo-driven nanopositioning systems for the same price as analog controllers. It was designed for piezo actuators and nanopositioning stages which low-cost piezoresistive sensors and the higher performing capacitive sensors. The digital servo technology allows higher linearity and precision and provides more control options (changeing parameters on-the-fly, software optimized servo tuning, etc) and very comfortable operation. The E-709 also includes a piezo power amplifier (driver). No additional hardware is required to operate a piezo mechanics.

Comprehensive Software Support
In addition, PI provides the full functionality of its comprehensive software packages free of charge. The E-709 can also be used for applications providing analog control signals, as still widely used in microscopy applications. In addition to 2 digital interfaces, a standard broadband analog input is installed as well.

True Digital or Analog?
Many "digital" piezo nanopositioning controllers are actually analog controllers with a USB or other communications interface grafted on. The digital command is converted into an analog voltage by a D/A converter that sits outside the servo loop and feeds the analog voltage to the servo. The servo technology in these controllers remains analog (op-amps, capacitors, resistors), with its inherent limits in accuracy, stability and functionality. A true digital controller puts the DAC inside the servo loop.

Application Examples

  • Bio/Nanotechnology
  • Semiconductor Technology
  • Lithography, Optics


Follow us on Twitter

Subscribe now to Laser Focus World magazine; it's free!

About the Author

LFW Staff

Published since 1965, Laser Focus World—a brand and monthly magazine for engineers, researchers, scientists, and technical professionals—provides comprehensive global coverage of optoelectronic technologies, applications, and markets. With 80,000+ qualified print subscribers in print and over a half-million annual visitors to our online content, we are the go-to source to access decision makers and stay in-the-know.

Sponsored Recommendations

Next generation tunable infrared lasers

Nov. 28, 2023
Discussion of more powerful and stable quantum cascade tunable infrared lasers, applications, and test results.

What AI demands mean for data centers

Nov. 28, 2023
The 2023 Photonics-Enabled Cloud Computing Summit assembled by Optica took an aggressive approach to calling out the limitations of today’s current technologies.

SLP feature for lighting control available on cameras offering

Nov. 28, 2023
A proprietary structured light projector (SLP) feature is now available on the company’s camera series, including the ace 2, boost R, ace U, and ace L.

Chroma Customer Spotlight - Dr. David Warshaw, About his Lab

Nov. 27, 2023
David Warshaw, Professor and Chair of Molecular Physiology and Biophysics at the University of Vermont (UVM), walks us through his lab. Learn about his lab’s work with the protein...

Voice your opinion!

To join the conversation, and become an exclusive member of Laser Focus World, create an account today!