瓦斯浓度红外检测噪声消除方法研究  

Research on Noise Elimination during Infrared Detection of Gas Concentration

作　　者：郑健[1] 曹军[1] 孙丽萍[1] 

机构地区：[1]东北林业大学机电工程学院,哈尔滨150040

出　　处：《森林工程》2011年第4期20-23,共4页Forest Engineering

基　　金：国家十一五科技支撑计划项目(2006BAD18B0801)

摘　　要：将数学方法与实验方法相结合,通过测量信号和参考信号的比值,消除由于光源的不稳定及其他因素引起的检测误差、外界环境引起的误差等,并利用数学方法推导得到计算方程。实验结果验证此类方法的可行性,可有效消除井下复杂恶劣环境带来的一系列噪声干扰,包括检测系统固有的性能误差和外部环境引起的干扰误差。Combining with mathematical method and experimental method,based on the ratio of measurement signal and reference signal,the error detection caused by the instability of light source and other factors was eliminated,and so was the error caused by external environment.The calculation equation was derived by using mathematical method.The feasibility of this method was verified by experimental results,which could effectively eliminate a series of noise disturbance in harsh and complex underground environment,including performance error inherent of the detection system and interference error caused by external environment.

关 键 词：噪声消除 红外检测 干扰误差 光路 

分 类 号：S781.3[农业科学—木材科学与技术]