现代科学仪器Issue(5)：73-77,5.
基于FPGA在线气体检测系统设计
FPGA-based TDLAS Field Gas Detection System
摘要
Abstract
A TDLAS field gas detection system based on FPGA has been designed.For field gas detection,high accuracy and fast data analysis and processing are required.Comparing to Single-Chip Microcomputer,FPGA has many advantages on power consumption and computing speed which can ensure the speed of data analysis and processing.TDLAS-based（tunable diode absorption spectroscopy） second harmonic detection technique can reduce the impact of noise then ensure the accuracy of test results.This paper demonstrates the detection principle and the TDL driven circuit method based on FPGA.Lastly,the modulation signals are generated by FPGA.The system is suitable for field gas detection with high-precision and high-speed.关键词
气体检测/FPGA/TDLAS/二次谐波Key words
Gas detection/FPGA/TDLAS/Second harmonic分类
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高致慧,洪泽华,陈升,张桃华,王洪艳,陈子聪,曹志,黄必昌..基于FPGA在线气体检测系统设计[J].现代科学仪器,2011,(5):73-77,5.基金项目
深圳市公共科技计划项目 编号：SY200806270158A （）
