摘要
介绍了基于锁相放大技术的LAPS检测系统的基本原理,为实现高精度的LAPS检测系统,利用DSP开发板和数、模器件设计了数字锁相放大器,将数字锁相放大算法在DSP内实现.实验分析表明:基于DSP的数字锁相放大器能够用于高精度的LAPS检测系统中.
The basic principle of LAPS detection system based on lock-in amplifying technology is introduced.In order to achieve high-precision LAPS detection system,digital lock-in amplifier is designed which includes DSP development board,digital devices and analog devices.The digital lock-in algorithm is implemented on the DSP chip. The experiment results show that DSP-based digital lock-in amplifier can be used for high-precision LAPS detection system.
出处
《河南科技学院学报（自然科学版）》
2013年第3期95-100,108,共7页
Journal of Henan Institute of Science and Technology(Natural Science Edition)
基金
国家自然科学基金(60602002)
天津市自然科学基金重点项目(12JCZDJC22400)
