超声显微切割工具驱动与控制系统的研究

Driving and Control of Ultrasonic Vibration Tool for Biological Cell Mic-rodissection

针对一种新型压电陶瓷超声微切割工具,采用单片机与FPGA相结合的方法,主要利用直接数字频率合成和直流放大原理,设计了压电陶瓷微驱动与控制电路,实现了对压电陶瓷振动频率及振动幅值的控制与调节.从而完成了对切割工具振动加速度的调节.

To control a new type of piezoelectric ultrasonic micro dissection tool,frequency scope from ,amplitude scope,a driving power for piezoe lectric actuators are designed using direct digital synthesizer and direct curre nt amplifying principle.Also,the technologies both single chip and FPGA were ado pted. Finally,the regulate for the acceleration of the microdissection too l was achieved.