Takano T, Tomikawa Y, Ogasawara T, Sugawara S, Konno M
Dept. of Commun. Eng., Tohoku Inst. of Technol., Miyagi.
IEEE Trans Ultrason Ferroelectr Freq Control. 1990;37(3):224-9. doi: 10.1109/58.55312.
The development is reported of an ultrasonic motor using piezoelectric ceramic multimode vibrators consisting of circular or annular plates in which degenerate horizontal vibration modes of the same or different form are used. Two orthogonal nonaxisymmetric vibration modes were used in the same-form case, and the combination of a nonaxisymmetric vibration mode and a radial vibration mode was used in the different-forms case. Some details of the motor design and its experimental characteristics are presented. The ultrasonic motor presented here has a special advantage in its thin construction.
报道了一种超声波电机的研制情况，该电机使用由圆形或环形板组成的压电陶瓷多模振动器，其中采用了相同或不同形式的简并水平振动模式。在相同形式的情况下使用了两种正交的非轴对称振动模式，在不同形式的情况下使用了非轴对称振动模式和径向振动模式的组合。介绍了电机设计的一些细节及其实验特性。这里介绍的超声波电机在其薄型结构方面具有特殊优势。
