热线式空气流量计在便携式尾气分析仪中的应用研究  

Application Study on Hot Wire Type Air Flow Meter Used in Portable Exhaust Analyzer

作　　者：陈红岩[1] 严瑾[2] 董清亮[1] 

机构地区：[1]中国计量学院机电工程学院,浙江杭州310018 [2]浙江省计量科学研究院

出　　处：《小型内燃机与摩托车》2008年第1期11-13,共3页Small Internal Combustion Engine and Motorcycle

摘　　要：介绍了一种广泛应用于桑塔纳发动机的热线式空气流量计在摩托车工况排放分析仪中的应用。介绍了热线式空气流量计的理论依据、基本原理和使用方面的问题,通过最小二乘法将标准数据进行拟合,作出拟合曲线从而对流量计进行精确标定,再通过标准测试,将流量计的输出结果与标准流量进行比较,从而表明热线式空气流量计在尾气分析仪中能够进行空气流量的准确测量。The hot wire type air flow meter is an important tool in measuring the quality of airflow. It is widely used in the Sangtana engine, and in this article, the application in exhaust analyzer is introduced. The basis theory, the basic principle and the application of the hot wire type air flow meter is presented. The main purpose of this article is that using the least squares method to carry on the standard datum, then making the standard tests and comparing the results with the standard current flux. It indicates that the hot line type air flow meter is accurate in surveying the flux of the exhaust gas by the results.

关 键 词：空气流量计 尾气分析仪 最小二乘法 

分 类 号：TP212.9[自动化与计算机技术—检测技术与自动化装置]