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Piezo controller with digital linearization

PI improves the positioning accuracy for low-cost piezo systems

(PresseBox) (Karlsruhe, ) In contrast to conventional analog piezo controllers, the E-609 single- channel piezo controller from Physik Instrumente (PI) has a digital controller which can be optimized using software and USB service interface. Additional linearization methods improve the accuracy of the piezo system in comparison to completely analog devices by a factor of 10 from around 0.2% to 0.02%.

The E-609 is equipped with analog interfaces for commanding the position. It is therefore the ideal instrument for automation tasks without host PC.

The D/A conversion of the digital controller is 16 bit, the 32 bit processor with 150 MHz clockpulse rate allows a servo rate of 10 kHz. The amplifier provides 5 W continuous power, for the dynamic operation of conventional nanopositioning systems such as the P-736 PInano sample scanner, for example.

PI has been one of the leading players in the global market for precision positioning technology for 40 years. The piezoelectric ceramics used as drive elements, which generate a finely adjustable motion, play an essential role. In cooperation with the PI Ceramic subsidiary PI produces piezo drives to meet custom requirements. This knowhow allows PI to have a unique flexibility and a broad technological advance. In addition to its three German factories, PI has eight subsidiaries and a total of over 500 employees worldwide.

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