Tag: Servo Controller

Methods to Improve Piezo Dynamics, Accuracy and Linearity: Preshaping / DDL / APC

Piezoelectric materials, like most electro-ceramics, do not show perfectly linear displacement behavior compared to the input voltage. Closed-loop operation with position feedback usually takes care of the nonlinearities.  Although perfect settling to the desired position is achieved to nanometric scale in positioning operation, the deviation in dynamic continuous motion operation can in some cases be […]

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About PI

PI (Physik Instrumente) 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 fifteen subsidiaries, R&D / engineering on 3 continents and total staff of more than 1,000.

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