Flückiger, M.Perriard, Y.2010-11-302010-11-302010-11-30201010.1109/AIM.2010.5695864https://infoscience.epfl.ch/handle/20.500.14299/59300Indirect Rotor Position Detection Method Based on Angular Admittance Modulation of Optimally Designed Piezoelectric Ultrasonic Motorstext::conference output::conference proceedings::conference paper