基于变压差稳流气道试验台数据采集与处理系统的设计  

Design of Data Acquistion and Processing System of Steady Flow Test Rig for Engine Ports with Variable Pressure Drop

作　　者：赵振武[1] 刘书亮[1] 刘德新[1] 赫扎特[1] 冯洪庆[1] 

机构地区：[1]天津大学,天津300072

出　　处：《汽车工程》2004年第6期655-657,670,共4页Automotive Engineering

摘　　要：基于变压差试验方法 ,在稳流气道试验台上 ,测量涡流动量矩、气门升程、气道压差、温度及流量等参数 ,上述各参数可用相应的传感器及放大器转变为电信号 ,再经A/D转换由计算机进行处理和分析 ,从而得出流量系数、涡流比等参数 。Based on the variable pr essure drop steady flow measuremen t technique,the parameters includi ng swirl moment of momentum,value lift,pressure drop at prots,temper ature and flow rate etc.are measur ed on the steady flow rig for inle t and exhaust prots,and then conve rted into electric signals with co rresponding sensors and amplifiers .After A/D conversion,the data are processed and analyzed on the comp uter,then the flow coefficient and swirl ratio are obtained.This disp enses with the troublesome manual recording and traditional measurin g.

关 键 词：试验台 气门升程 变压差试验 涡流比 动量矩 传感器 测试方法 稳流 流量系数 流动 

分 类 号：TK40[动力工程及工程热物理—动力机械及工程]