摘要
介绍了交流换气扇性能测试系统,对其测量不确定度来源进行了分析。进一步对基本量、大气密度分量、喷嘴流量系数分量进行了深入分析,揭示了影响交流换气扇风量与输入功率测量不确定度的重要影响因素。
Measurement system of A.C.electric ventilating fans performance was introduced.The origins for measurement uncertainty of this system were analyzed.Furthermore,we did some research on fundamental quantity,atmospheric density component,nozzle flow coefficient component and revealed crucial factors influencing the measurement uncertainty of flow rate and power input for A.C.electric ventilating fans.
作者
蔡向明
陈荣
CAI Xiang-ming;CHEN Rong(Shanghai Institute of Quality Inspection and Technical Research,Shanghai 200000)
出处
《环境技术》
2018年第A01期157-160,共4页
Environmental Technology
关键词
交流换气扇
测量不确定度
大气密度分量
喷嘴流量系数分量
风量
输入功率
A.C.electric ventilating fans
measurement uncertainty
atmospheric density component
nozzle flow coefficient component
flow rate
power input
