@article{oai:kanazawa-u.repo.nii.ac.jp:00009382,
 author = {青柳, 誠司 and 笹木, 亮 and 神谷, 好承 and 岡部, 佐規一},
 issue = {12},
 journal = {精密工学会誌 = Journal of the Japan Society for Precision Engineering},
 month = {Jan},
 note = {A fast and fine position control method of an ultrasonic motor has been already studied which uses phase shift input and applies a linear control system. However this method has a drawback in damage of the lining material because the rotor jumps slightly from the stator in an ultrasonic frequency in the neighborhood of a command position. So it is desired to cut down voltage input and to decrease the amplitude of the traveling wave after the coarse positioning is completed. This paper presents a new control method which uses not only phase shift input but also voltage input and varies them using a fuzzy controller. Besides a fast and fine positioning, prevention of abrasion of the lining material was achieved by applying this fuzzy control method.},
 pages = {1741--1745},
 title = {ファジィコントローラによる超音波モータの位置決め制御},
 volume = {60},
 year = {1994}
}