An in-wheel type micro ultrasonic motor utilizing sector shaped piezoelectric vibrators
An in-wheel type micro ultrasonic motor utilizing sector shaped piezoelectric vibrators
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DOI：
10.1109/aim.2007.4412536
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发表时间：
2007-12
期刊：
影响因子：
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通讯作者：
T. Kanda;Y. Matsunaga;K. Suzumori
中科院分区：
文献类型：
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作者：
T. Kanda;Y. Matsunaga;K. Suzumori
设计并制作了一种采用扇形压电陶瓷振子的微型超声电机。这种微电机具有驱动力矩大、外形扁平、重量轻、结构紧凑等优点。振子的外径为9.8mm，内径为5.2mm，厚度为0.8mm。振子的第一纵模和第二弯曲模谐振频率约为360kHz。超声波马达在施加电压为20 Vp_p的条件下旋转164 rpm。
A micro ultrasonic motor using sector shaped piezoelectric ceramics vibrators has been designed and fabricated. This type micro motor has advantages, such as a high-torque driving, a low-profile, lightweight and compact structure. The outer diameter of vibrator was 9.8 mm, the inner diameter was 5.2 mm, and the thickness was 0.8 mm. The vibrator's 1st longitudinal mode and 2nd bending mode resonance frequency were about 360 kHz. The ultrasonic motor rotated 164 rpm under the condition of an applied voltage of 20 Vp_p.