Using Lissajous scan trajectory is a promising way to get rid of issues resulting from the
raster scan trajectory in several advanced applications, like atomic force microscopy and fast …

For most nanopositioning systems, maximizing positioning bandwidth to accurately track
periodic and aperiodic reference signals is the primary performance goal. Closed-loop …

The dual-loop controller (DLC) with both inner damping and outer tracking controllers has
demonstrated exceptional performance in high-speed control of piezo-actuated nano …

Typically, the achievable positioning bandwidth for piezo-actuated nanopositioners is
severely limited by the first, lightly-damped resonance. To overcome this issue, a variety of …

By exploiting the co-located sensor-actuator arrangement in typical flexure-based
piezoelectric stack actuated nanopositioners, the polezero interlacing exhibited by their axial …

Nanopositioners are mechanical devices that can accurately move with a resolution in the
nanometer scale. Due to their mechanical construction and the piezoelectric actuators …

This paper proposes a Fractional-order modification of the traditional Integral Resonant
Controller named as FIRC. The fractional integral action utilised in the proposed FIRC is a …

The fast and accurate tracking of periodic and arbitrary reference trajectories is the principal
goal in many nanopositioning applications. Flexure-based piezoelectric stack driven …

Tracking triangular or staircase trajectories is a challenge for a piezo-driven nanopositioner
due to vibration problems. The piezo-driven nanopositioner is a lightly-damped system …

Abstract Positive Position Feedback (PPF) is a widely used control technique for damping
the lightly damped resonant modes of various dynamic systems. Though PPF controller is …