نتایج جستجو برای: ultrasonic motor
تعداد نتایج: 187148 فیلتر نتایج به سال:
A high-thrust screw-type piezoelectric ultrasonic motor with a three-wavelength exciting mode is proposed in this paper. The motor mainly includes a stator and a screw output shaft, and the stator is composed of twelve rectangular piezoelectric plates and a hollow metal elastomer with an internal thread. The stator can be excited to generate the combined micro ultrasonic vibration mode. With th...
Today technology is improving daily in different aspects in order to provide flexible and safe movement for the people. Currently the most widespread and used mean by the visually impaired people are the white stick, however it has limitations. With the latest technology, it is possible to extend the support give to people with visual impairment during their mobility; this paper proposes an eco...
Adopting relatively simple motion control algorithm, helps reduce the cost of ultrasonic motor system including the drive control circuit, so as to promote its industrialization. For this purpose, this paper presents a simple model reference adaptive control strategy. The small amount of calculation of the policy, and with a certain degree of adaptive capacity, improves the system cost-effective.
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