红外甲烷浓度测量仪设计

发布时间：2018-06-16 09:48

本文选题：甲烷浓度 + 红外光谱　；参考：《工矿自动化》2015年03期

【摘要】：针对基于气相色谱法设计的甲烷浓度检测仪测量精度不高的问题,提出了一种基于红外光谱吸收原理的零点及线性温度补偿算法,并基于该算法设计了一种可以实时在线检测的高精度红外甲烷浓度测量仪。实验结果表明,在温度补偿前,温度变化越大,甲烷浓度测量误差越大,误差范围为3%~11.5%;温度补偿后,甲烷浓度测量值随环境温度变化很小,误差范围为0~2.5%。
[Abstract]:A zero and linear temperature compensation algorithm based on infrared absorption principle is proposed to solve the problem of low accuracy of methane concentration detector designed by gas chromatography. Based on this algorithm, a high precision infrared methane concentration measuring instrument is designed. The experimental results show that before the temperature compensation, the greater the temperature change, the greater the measurement error of methane concentration, and the error range is 311.50.After temperature compensation, the measured value of methane concentration changes little with the ambient temperature, and the error range is 0 / 2.5.
【作者单位】：天津工业大学电子与信息工程学院;天津大学机械学院;
【基金】：国家自然科学基金项目(50975193)
【分类号】：TD712

【参考文献】