空气校准器在小量程流量计校准中的应用  

Application of Air Calibrator of HWFA in Calibrating Small Range Flowmeter

作　　者：杨英强[1] 俞忠[1] 

机构地区：[1]上海交通大学工程力学实验中心,上海200240

出　　处：《实验室研究与探索》2005年第10期28-30,共3页Research and Exploration In Laboratory

摘　　要：介绍了利用热线热膜风速计测量其空气校准器出口的速度分布,经过曲线拟合和积分,可以得出其平均速度和流量。空气校准器被改造成一台标准的气体流量计并成功地应用于其它小量程气体流量计的校准。A measuring method of the velocity distribution at air calibrator exit of HWFA was introduced. The mean velocity and rate of flow can be obtained by curve fit and integral. The air calibrator was reformed as a standard air flowmeter, and it was used to calibrate other small range air flowmeter.

关 键 词：热线热膜风速计 空气校准器 流量计 边界层 

分 类 号：TV321[水利工程—水工结构工程]