Nanopositioning controller rides the PCIbus
A
Lambda Photometrics product story
Edited by the Engineeringtalk editorial team
Jun 26, 2006
Physik Instrumente has introduced the E-761, the world's first PCIbus nanopositioning controller.
Physik Instrumente has introduced the E-761, the world's first PCIbus nanopositioning controller.
The new PI instrument is designed to give more flexibility and better overall value that any other digital piezo controller currently available.
Many of today's high-tech applications in imaging, metrology, scanning microscopy and surface analysis require a combination of high-speed motion control coupled with high resolution.
They also need extremely fast data acquisition and precise synchronisation between the imaging and motion control devices.
Peripheral components with PCIbus interfaces re ideally equipped to satisfy these demands because the PCIbus was designed to give high bandwidth access to the microprocessor in the PC.
The all-new PI product is the first commercially available fully digital piezo nanopositioning controller on a PCI board.
The technology allows fast communications and easy integration with devices such as frame grabbers - a major benefit in real-time data acquisition or when operating multiple controllers simultaneously.
Features of the new PI controller include closed-loop control of three axes using capacitive position feedback, four onboard piezo drivers eliminating the need for external amplifiers and co-ordinate transformation for active trajectory control.
A powerful 32bit DSP and 24bit D/A convertor offer subnnanometre position accuracy and a high bandwidth analogue command interface accommodates analogue position data systems and supports external triggering tasks.
Digital linearisation is provided for improved accuracy and plug and play auto-calibration allows for interchangeability of positioning systems.
The controller comes with a large variety of software tools, LabView drivers and Windows DLLs for easy setup, system optimisation and integration in application specific programs.
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