摘要
目的:欲得到不同环境条件下温度和风速对干湿球法测量相对湿度的影响程度。方法:采用误差分析方法结合干湿球法测量试验。结果:干球温度和湿球温度灵敏系数kt、ktw主要受环境温度和相对湿度的影响,受风速的影响较小,随着相对湿度的增加和温度的降低,kt和ktw增加;风速灵敏系数kv受温度、相对湿度和风速的共同影响,随温度、湿度的降低和风速的减小,kv增加。结论:在高湿低温条件下,相对湿度扩展不确定度较大。
Aims: To obtain the influence of temperature and wind speed on the relative humidity measured by the psychrometer method under different environmental conditions. Methods: The psychrometer method combined with error analysis. Results: The results showed that the sensitivity coefficients of dry bulb temperature and wet bulb temperature ( kt, ktw ) were mainly affected by ambient temperature and relative humidity, but less by wind speed. kt and ktw increased with the increase of relative humidity and the decrease of the temperature. Wind speed sensitivity coefficient kv was affected by the combination of temperature, relative humidity and wind speed. kv increased as the temperature, humidity and the wind speed decreased. Conclusions: Uncertainty of relative humidity is greater under conditions of higher humidity and lower temperatureed.
作者
王云鹤
程志明
吴珂
朱凯
WANG Yunhe;CHENG Zhiming;WU Ke;ZHU Kai(College of Quality and Safety Engineering,China Jiliang University,Hangzhou 310018,China;Chilwee Power Co.,Ltd,Changxing 313100,China;College of Civil Engineering and Architecture,Zhejiang University,Hangzhou 310058,China)
出处
《中国计量大学学报》
2019年第3期274-278,286,共6页
Journal of China University of Metrology
基金
浙江省重点研发计划项目(No.2011C11080,2018C03029)
关键词
计量
相对湿度
干湿球
误差分析
灵敏度系数
不确定度
metrology
relative humidity
psychrometer
error analysis
sensitivity coefficient
uncertainty
