基于FPGA驱动微陀螺旋转的移相电路  

FPGA-based phase-shifting circuit of micro-gyroscope-driven rotating

作　　者：李世鹏[1] 张卫平[1] 刘凯[1] 刘武[1] 陈文元[1] 

机构地区：[1]上海交通大学微纳科学技术研究院,薄膜与微细技术教育部重点实验室,微米/纳米加工技术国家级重点实验室,上海200240

出　　处：《中国惯性技术学报》2009年第6期738-741,共4页Journal of Chinese Inertial Technology

基　　金：国家自然科学基金(60402003);国防预研基金(9140A09020706JW0314)

摘　　要：传统的微陀螺转子驱动电路采用对模拟信号直接移相实现,为了解决模拟信号直接移相时移相范围有限、调试复杂等不足,设计出了基于FPGA的数字式驱动微陀螺旋转移相电路。通过FPGA产生相位差信号,经D/A转换电路和巴特沃兹滤波电路处理后输出信号。该数字式移相方法产生的信号的相位差(0°～360°)、频率均可调,为涡流旋转微陀螺转子提供了理想的信号源。Traditional drive circuit of micro-gyroscope rotor is based on direct phase-shift of analog signal to overcome the drawback of direct phase shift of analog signal, such as limited phase-shift in scope, complex debugging, etc. In this paper, a phase-shifting circuit of micro-gyroscope-driven rotating based on FPGA is designed. The phase difference signals are generated by FPGA, then they are output after processing by D / A converter circuit and the Butterworth filter circuit. The phase difference（0°-360°） and frequency of the signals generated by the digital phase shift method are adjustable. It provides a good signal generator for rotating micro-gyroscope rotor.

关 键 词：波形移相 涡流旋转转子 微陀螺 带通滤波 FPGA 

分 类 号：U666.1[交通运输工程—船舶及航道工程]