摘要
研制了一台新型直线超声电机,测定了电机的频率—速度关系、相位—速度关系。基于DDS技术设计的驱动器能产生两相可调频率、可调相位差及可调幅值的正弦信号。采用调相、调频综合控制方法,构建了直线超声电机驱动的全数字位置控制平台。该平台可达到5μm的定位精度。
This paper presented a new type linear ultrasonic motor. Driving experiments were performed to measure the relations between frequency- speed, phase- speed. The driving- controller using DDS（digital direct frequency synthesis） technology can produce two phase sinusoidal signals, the frequencies, phase differences and amplitudes of them can all be adjusted. By adjusting-frequency and adjusting-phase, the linear ultrasonic motor can attain 5μm position precision.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2007年第13期1595-1597,共3页
China Mechanical Engineering
基金
国家自然科学基金资助项目(50175050)
关键词
驱动电源
超声电机
位置控制
压电陶瓷
driving power
ultrasonic motor
position control
piezoelectric ceramics
