光干涉式甲烷检测器原理及改进设计  

The Theory and the Improvement Design of CH_4 Detection Instrument Based on Light Interference Technique

作　　者：陈俊英[1] 林辉[1] 

机构地区：[1]厦门大学机电系,福建厦门361005

出　　处：《仪表技术》2008年第4期24-26,共3页Instrumentation Technology

摘　　要：介绍光干涉式甲烷检测技术的基本测量原理,及在光电检测环节对系统所作的改进设计。这种改进体现在采用CCD或CMOS光电传感器,将视频信号输入嵌入式系统,进行数字图像处理,以合理的软件设计提高检测的速度与精度。In this paper, the methane detection technique based on laser light interference is discussed. At the same time, the improvement design in signal capturing is also focused on. The improvement design is that using CCD, CMOS photoelectricity sensor to get video signal,then the signal is send into embedded system. Digital image processing can give the concentration of methane, and an excellent program can improve the speed and precision of detection.

关 键 词：甲烷检测 光干涉 光电转换 数字图像处理 

分 类 号：TH74[机械工程—光学工程]