@inproceedings{oai:muroran-it.repo.nii.ac.jp:00006783,
 author = {武村, 剛志 and TAKEMURA, Tsuyoshi and 青柳,  学 and AOYAGI, Manabu and 高野, 剛浩 and TAKANO, Takehiro and 田村,  英樹 and TAMURA, Hideki and 富川, 義朗 and TOMIKAWA, Yoshiro},
 book = {精密工学会大会学術講演会講演論文集},
 issue = {1},
 month = {},
 note = {application/pdf, There is a great possibility that an ultrasonic motor (USM) can effectively reproduce realistic feelings of hardness and roughness on a virtual object in a haptic virtual reality system due to its rapid response characteristic However, the state of torque free does exist in an ordinal USM, because a stator vibrator is preloaded to a rotor or slider and a braking force always occurs. It is hard to arbitrarily change the preload of an USM while operating. In this study an ultrasonic actuator with clutch function, which can electrically control a preload, was developed by using piezoelectric actuators and mechanical amplifier. As a result, this ultrasonic actuator was able to widely control generations of driving torque and reaction from zero to maximum.},
 pages = {111--112},
 publisher = {精密工学会},
 title = {クラッチ機能を備えた超音波アクチュエータ（第2報）構成と動作特性},
 volume = {2008},
 year = {2008},
 yomi = {タケムラ, ツヨシ and アオヤギ, マナブ and タカノ, タケヒロ and タムラ, ヒデキ and トミカワ, ヨシロウ}
}