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New 4-channel dynamic cost-effective digital piezo controller

By Lisa Eitel | October 24, 2016

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PI (Physik Instrumente) L.P., an industry leader in precision motion control systems, and nanopositioning solutions, announces a new, 4-channel version of its high-performance E-727 digital piezo controller.

Applications from Microscopy to Semiconductor Metrology

The E-727 is designed for multi-axis nanopositioning applications, such as 3D imaging in super-resolution microscopy, laser beam steering, image stabilization in astronomy, and fast alignment applications such as used in fiber alignment and semiconductor CD testing.

In addition to a broad choice of digital high-speed interfaces, such as SPI, Ethernet, and USB (and traditional RS-232), it also provides 3 additional high-resolution analog inputs.

Ultra-Low Noise Controller, Digital Linearization

Low noise 20-bit DAC & ADC converters provide high resolution and stability. 4 integrated piezo power amplifiers with an output range of -30 to +130V as well as circuitry for capacitive feedback sensors, piezoresistive sensors, and traditional strain gauges are also on board. The digital servo provides PID control with two programmable notch filters for higher bandwidth by suppression of mechanical system resonances. Digital linearization is based on 4th order polynomials for extreme linearity and absolute positioning accuracy. An optional Dynamic Digital Linearization (DDL) firmware eliminates phase lag and dynamic non-linearities at high operating frequencies.

Data Recorder, Auto-Calibration ID Chip, Quick Start UP, Comprehensive Software Package

A data recorder for high speed tracing, ID chip compatibility for quick start-up, and exchange of system components without recalibration are also included. The controller comes with extensive software support for LabVIEW and shared libraries for Windows and Linux.

Applications of the E-727

Applications for the new dynamic controller include nanopositioning, nano-automation, semiconductor technology, photonics, bio-nano-technology, metrology, microscopy, micro-manipulation, including cleanroom applications.

Features & Advantages

  • 25 kHz Control Bandwidth
  • For Capacitive and Piezo-restive Strain Gauge Feedback Sensors
  • High Resolution Analog Control Inputs and Outputs
  • Interfaces: Ethernet, USB, and RS-232
  • Digital Inputs and Outputs
  • DSP 32/64-bit Floating Point, 375 MHz
  • 20-bit DAC and ADC Resolution
  • ID Chip Compatible for Interchangeability of Controller and Mechanics
  • 4th Order Polynomial Linearization for Mechanics & Electronics

PI has in-house engineered solutions with over 4 decades of experience working with customers to provide products that meet application demands, and can quickly modify existing product designs or provide a fully customized OEM part to fit the exact requirements of the application.


PI is a leading manufacturer of precision motion control equipment, piezo motors, air bearing stages and hexapod parallel-kinematics for semiconductor applications, photonics, bio-nano-technology and medical engineering. PI has been developing and manufacturing standard & custom precision products with piezoceramic and electromagnetic drives for 4 decades. The company has been ISO 9001 certified since 1994 and provides innovative, high-quality solutions for OEM and research. PI is present worldwide with twelve subsidiaries, R&D / engineering on 3 continents, and total staff of 950+.

Motion Control Tips


Filed Under: Motion Control Tips
Tagged With: PI, physikinstrumente
 

About The Author

Lisa Eitel

Lisa Eitel has worked in the motion industry since 2001. Her areas of focus include motors, drives, motion control, power transmission, linear motion, and sensing and feedback technologies. She has a B.S. in Mechanical Engineering and is an inductee of Tau Beta Pi engineering honor society; a member of the Society of Women Engineers; and a judge for the FIRST Robotics Buckeye Regionals. Besides her motioncontroltips.com contributions, she also leads the production of the quarterly motion issues of Design World.

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