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Physik Instrumente (PI) has introduced a low-cost series of fast piezo focusing devices designed to improve results in fast focusing and lens positioning as well as in deconvolution/3D imaging.

The Pifoc piezo objective scanner system packages consist of closed-loop piezomechanic objective positioners and custom-tuned compact digital servo controller/driver units.

The integrated, frictionless and high-stiffness piezo flexure drive ensures fast response and short settling times as well as high guiding accuracy, according to the company.

The digital controller is said to provide several advantages compared with the conventional analogue controllers of the fast focusing systems currently available, including higher linearity, improved settling performance, quicker adaptation to changing motion requirements and better access to advanced automation functions.

Key features

  • Complete system with fast digital controller and software
  • Choice of travel ranges: 100µm, 250µm or 400µm
  • Sub-nanometre resolution
  • Choice of position feedback sensors

Physik Instrumente

PI is a global manufacturer of high precision positioning systems and products based on piezo technology. Used in markets as diverse as biotechnology, semiconductor, defence and astronomy, PI’s products work to improve the speed and precision of many cutting edge processes. Actuators, sensors and positioning systems with either sub-micron or nanometre level precision; many customised for the end user, are included in the product range.

With manufacturing and subsidiary offices around the world and a workforce of more than 500 PI provides direct local support where it is needed. Products range from component level piezo ceramic assemblies to six axis hexapod positioning robots. PI manufactures its own piezo ceramic material including multilayer devices that incorporate its patented ceramic insulation technology. Lead free ceramic technology is now also included in the company’s product range. With the flexibility and continuity of supply offered by having control of piezo ceramic production comes security and speed of delivery for customers who rely on or are looking to move into this area of technology. PI’s piezo ultrasonic and step drive motor technologies offer unique performance including self-locking capability, high force or high speed and non-magnetic and vacuum compatibility.

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