Experimental Investigation Of Piezoelectric Tube Actuators Dynamics
This paper aims to investigate the dynamics of piezoelectric tube actuators. It demonstrates the effect of the frequency and the amplitude of the excitation voltage on the displacement of the actuator. In this research, an experimental setup comparable with a nanopositioner of atomic force microscopies was designed and assembled. The piezoelectric tube was excited by a number of triangular voltage functions. Experimental results show a voltage-displacement loop influenced the hysteresis phenomena as well as vibration and creep. It was clearly observed that the loop becomes widened at higher frequencies due to more significant influence of vibration.
Index Terms- Piezoelectric Tube, Hysteresis, Nanopositioning, Atomic Force Microscopy