随车式摩托车废气分析仪

作者：骆美富，郑尧军，陈开考 日期：2008-06-23/span> 浏览：4177 查看PDF文档

随车式摩托车废气分析仪

骆美富，郑尧军，陈开考
（浙江经济职业技术学院 汽车技术学院，浙江 杭州 310018）

摘要：针对摩托车废气检测技术落后的问题，介绍了利用工业计算机主板ARM7开发的随车式摩托车废气分析仪。该分析仪由气体采样、气体分析和显示等系统组成，能够测量不同工况下摩托车尾气中5种气体成份。该仪器使用非扩散红外线（NDIR）光吸收方法分析HC、CO和CO2浓度；使用电化学方法分析O2和NOx浓度；采用霍尔传感器测量摩托车速度，采用热线式流量计测量摩托车排出尾气的流量。试验结果表明，该仪器相对误差较小，具有推广应用前景。
关键词：废气分析仪；热线式流量计；霍尔传感器
中图分类号：TP202文献标识码：A文章编号：1001-4551(2008)06-0091-04

Portable motorcycle exhaust gas analyzer
LUO Meifu, ZHENG Yaojun, CHEN Kaikao
(College of Automotive Technology, Zhejiang Technology Institute of Economy, Hangzhou 310018, China)
Abstract: Aiming at the problem of laggard motorcycle exhaust detection technology, a new portable motorcycle exhaust gas analyzer was developed by using the industrial computation motherboard ARM7. The analyzer was composed of the sample system, gas examination system, secondary measuring system and display system. Using portable motorcycle exhaust gas analyzer, the motorcycle exhaust gas under various operating modes were surveied. The nondispersive infrared method (NDIR) was used to measure CO, CO2 and HC, the electrochemical mean was used to test NOx and O2. The Hall effect sensor was used to survey the motorcycle speed and the hot wire flow meter was used to obtain the flux of the exhaust gas. The experimental results show that the fractional error of portable motorcycle exhaust gas analyzer is minor, and it has a spread application foreground.
Key words: exhaust gas analyzer; hot wire flow meter; Hall effect sensor
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