Request InfoPI (Physik Instrumente) LP, Motion Control, Air Bearings, Piezo MechanicsAUBURN, Mass., Oct. 1, 2010 — PI (Physik Instrumente) L.P. has introduced the E-709 piezo nanopositioning controller that provides digital functionality for the price of analog, in the size of a paperback book. Fifth-order polynomial digital linearization ensures higher accuracy than analog, and two notch filters allow faster response and piezo operation at higher frequencies. A fast servo update rate ensures responsiveness. The digital-to-analog converter in-the-loop architecture guarantees positional stability. 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