Magnetic Field Tuning Characteristics of Bimodal Ultrasonic Motor Stator
LI Chong (李冲), LU Cunyue* (鹿存跃), MA Yixin (马艺馨)
Journal of shanghai Jiaotong University (Science) . 2017, (2): 129 -132 .  DOI: 10.1007/s12204-017-1811-y