Takano T, Tomikawa Y, Kusakabe C
Dept. of Commun. Eng., Tohoku Inst. of Technol., Miyagi.
IEEE Trans Ultrason Ferroelectr Freq Control. 1992;39(2):180-6. doi: 10.1109/58.139113.
Same-phase drive-type ultrasonic motors, using two degenerate bending vibration modes of a disk, are presented. The distinctive feature of the motor is in using the standing wave modes. The motor is not driven by two input signals with different phases, but by input signals with the same phase. Therefore, only one amplifier is sufficient to drive the motor. The experimental results have proved that the motor can yield stable operational characteristics at low speed and high torque.
本文介绍了一种同相驱动型超声波电机，它利用圆盘的两种简并弯曲振动模式。该电机的独特之处在于采用驻波模式。电机不是由两个不同相位的输入信号驱动，而是由相同相位的输入信号驱动。因此，仅需一个放大器就足以驱动电机。实验结果表明，该电机在低速高转矩情况下能够产生稳定的运行特性。
