Research and Test of the Digital Phase Locked Loop Drive Technology for Silicon Micro-machined Gyroscope

摘要：

A program of digital phase locked loop (DPLL) drive is proposed to supply the gaps including debugging complex, easiness of interference and poor flexibility in the traditional analog drive loop of the silicon micro-machined gyroscope (SMG). The program, i.e. field programmable gate array (FPGA) is utilized to process the drive sensitive signal of the SMG after the analog to digital (A/D) processing of high-precision, has been utilized to achieve phase and amplitude closed-loop of the SMGs drive mode. The simulation and test results show that the program has a great advantage to reduce the requirements on quality factor compared with the original program. When the gyroscope with a low quality factor is not easy to vibrate by the analog self-excited drive circuit, the program is adopted to reach drive modes frequency stability of 18ppm.

关键词： Silicon Micro-machined Gyroscope (SMG) closed loop drive Digital Phase Locked Loop (DPLL) Field Programmable Gate Array(FPGA)

作者: Yuliang Wang Hongsheng Li Shuangwei Han Hao Liu

作者单位: NO.24 research institute of CETE Chongqing, China School of Instrument Science & Engineering Southeast University Nanjing, China Unit 17, Navy 91267 Fuzhou, China

会议类型: 国际会议

会议名称: 2010 6th International Conference on MENS NANO,and Smart System(2010年微机电纳米、智能系统国际会议 ICMENS 2010)

会议地点: 长沙

会议语种:英文

页码: 103-108

在线出版日期: 2010-12-14（万方平台首次上网日期，不代表论文的发表时间）