An impact rotary motor based on a fiber torsional piezoelectric actuator

作者：Han W X^*; Zhang Q; Ma Y T; Pan C L; Feng Z H

来源：Review of Scientific Instruments, 2009, 80(1): 014701.

DOI：10.1063/1.3053166

• piezoelectric actuators
• piezoelectric motors
• torque

A prototype small impact rotary motor has been fabricated based on a newly developed torsional actuator which is 15.0 mm long and 1.0 mm in diameter. The motor can rotate when it is powered with a saw-shaped voltage. The experimental results show that its angular speed is proportional to both the driving voltage's amplitude and the frequency under 1 kHz. The large nonlinearity occurs at higher driving frequency due to the resonance of the partial mechanical structure of the motor. The motor can rotate at a speed of 90 rpm with a saw-shaped driving voltage of 600V(p.-p.) at 8 kHz, and produce a stall torque of 80 mu N m with 1000V(p.-p.) at 3 kHz.

• 出版日期2009-1
• 单位中国科学技术大学