轿车用卡门旋涡空气流量计  

Control principle and analysis of Karman vortex air flow sensors used in automotives

作　　者：王怀玲[1] 贾振亮[2] 

机构地区：[1]平顶山工业职业技术学院,河南平顶山467001 [2]华北水利水电学院,河南郑州450045

出　　处：《传感器世界》2011年第12期18-20,共3页Sensor World

摘　　要：为提高轿车燃油经济性、动力性以及排放清洁性,必须严格控制发动机电控燃油喷射系统混合气的空燃比,则必须对进气流量进行测量。本文介绍了一种卡门式涡流空气流量计进气阻力小、体积小、重量轻、反应灵敏、压力损失低、脉动气流测量精度高。In order to improve the fuel economy, dynamics and clean emission of automotives, the air-fuel ratio of mixture gas in electronic-controlled fuel injection systems of engines must be controlled strictly .So it is necessary to measure the air flow. A Karman-type vortex air flow meter is introduced in this paper, which has many advantages of small intake resistance, small volume, light weight, fast response, low pressure loss, high pulsating- flow measuring precision, wide measuring range and so on.

关 键 词：卡门漩涡 空气流量计 光学 超声波 

分 类 号：U464.13[机械工程—车辆工程]