超声电机驱动和疲劳寿命集成测控系统

Integrated Control System for Ultrasonic Motor Drive and Fatigue Life Testing

针对旋转型行波超声电机驱动和疲劳寿命测试要求,采用嵌入式微控制器可编程片上系统(PSOC)设计了单片集成测控系统。利用该微控制器的数字模拟混合设计特性,设计了超声电机驱动信号产生模块;基于内部运放设计了数控电流源,针对磁粉制动器实现了数控加载控制;采用内部比较器设计了转速信号调理电路,实现了信号整形处理,便于外部接口。该集成测控系统简化了电路设计,提高了系统的稳定性,便于组成测控网络或移植到其他类似应用。

Aiming at the drive and fatigue life testing,a control is designed based on a single programmable system on chip(PSOC) microcontroller.A USM drive module is designed based on its analogue-digital mixed character.In order to achieve the digital load control a digital controlled current source is designed based on internal amplifier.A motor speed signal processing circuit is designed through internal comparator,so as to interface with computer.The PSOC based integrated control and testing system result a simplified system,and make the system more reliable.It is easy to form a driving and testing net,or transplant to other similar system.