超声电机在真空高低温环境下的驱动性能
Driving Performance Investigation on Ultrasonic Motor Under Vacuum and High Low Temperature Environment

为了对行波型旋转超声电机在同向负载下的驱动性能进行测试，并研究真空高低温环境对电机驱动性能产生的影响，设计并搭建了一套测试系统，从而实现了对超声电机转速和负载扭矩的测量，并对测试设备采取了控温措施，保证设备在高低温环境下的测试精度不会下降。试验结果表明，利用该系统可获得有效测试数据，得到超声电机在真空高低温环境下的驱动性能曲线，并将其与常温常压环境下的曲线进行比对，可以看到真空高低温环境对超声电机在同向负载下的驱动性能产生了一定影响。本研究成果为超声电机在航天领域的广泛应用奠定了可靠基础。
In order to investigate the driving performance of traveling-wave type rotary ultrasonic motor with the co-rotating load under vacuum and high-low temperature environment, a testing system is designed and built, which is used to measure the load torque and the motor speed. At the same time, temperature control measures are used to make sure that the testing equipment precision will not fall under high-low temperature environment. The experimental results show that effective testing data can be obtained by using this system and the driving performance curves of ultrasonic motor can be drawn from the testing data under vacuum and high-low temperature environment. By comparing those curves with the curves under normal temperature and normal pressure environment, some useful conclusions can be obtained. It is obvious that the vacuum and high-low temperature environment has made some impacts on the driving performance of ultrasonic motor with the co-rotating load.