摘要
构建了基于现场可编程模拟阵列(FPAA)的石英音叉陀螺的方波驱动与开关解调电路;分析了差分形式的方波驱动与开关解调原理,实现了FPAA芯片所需功能,验证了电路的可行性;实验测试表明,该系统的刻度因子为25mV/(°)s-1,系统1h内的零偏稳定性为1.1351°/s;电路采用DIP封装可重复擦写的SPI EPROM配置FPAA芯片,能够快捷、有效地调试,且操作简单,可以作为理想的石英音叉陀螺的驱动与解调电路实验平台。
A square wave drive and switching demodulation circuit for quartz tuning fork gyroscope based on Field Programmable Analog Arrays （FPAA） is developed. The principle of square wave drive and switching demodulation of differential type is introduced; the required function that FPAA device should provide is implemented; practicability of this circuit is verified. The experiment shows that scale factor of this system is 25 mV/＊/s, and its ZRO stability in an hour is 1. 1351~/s. The circuit can be debugged conveniently and effectively by configuring the FPAA device using SPI EPROM, so it can be used as ideal experimental platform of drive and demodulation circuit for quartz tuning fork gyroscope.
出处
《计算机测量与控制》
CSCD
北大核心
2009年第11期2232-2234,共3页
Computer Measurement &Control
关键词
石英音叉陀螺
现场可编程模拟阵列(FPAA)
方波驱动
开关解调
quartz tuning fork gyroscope
field programmable analog arrays （FPAA）
square wave drive
switching demodulation
