作　　者： ; ; ;

机构地区： 广东工业大学

出　　处： 《制造技术与机床》 2012年第10期40-42,共3页

摘　　要： 研制了一种基于ARM的感应式超声电源,用于旋转超声加工机床。重点分析了感应式超声电源频率跟踪的工作原理,给出了软件方法进行粗调,硬件锁相环进行细调的频率跟踪方式。设计了以ARM处理芯片为核心的控制电路,并给出系统频率跟踪控制的流程图。实验结果表明,超声电源频率跟踪效果良好,振幅保持恒定。 An ultrasonic power for rotary machining is introduced based on ARM.Its frequency tracking principle is analyzed.The method includes rough tracking by software and refined tracking by a PLL hardware circuit.The control circuit based on ARM is designed and the presentation of system program flow chart is given.The experimental result proved that the ultrasonic power system can realize quick and accurate frequency tracking,and also can work well with constant amplitude control.

关 键 词： 超声电源 频率跟踪

领　　域： [电气工程]