摘要
露点仪测量气体湿度过程中,拉乌尔效应对测量准确性影响很大。使用测量凝结物冰点值估算拉乌尔效应影响值,发现在冷镜表面滴入酒精吹扫并加热蒸发残留酒精清洁表面,可以大大减少拉乌尔效应影响。通过实验可以减少拉乌尔效应露点误差到0.1℃以下。
The Raoul effect makes a great influence on the accuracy of measuring dew point of gas using a hygrometer. When estimating the Raoul effect by measuring condensate freezing point, we found drops of alcohol on the cold mirror for blowing and heating evaporation residue al-cohol to clean the surface can greatly reduce the Raoul effect. It can reduce the Raoul effect5 s error of dew point temperature to less than 0. 1%.
出处
《计测技术》
2017年第6期45-47,共3页
Metrology & Measurement Technology
关键词
露点仪
拉乌尔效应
清洁镜面
酒精
吹扫
hygrometer
Raoul ef fect
cleaning of mirror
alcohol
blow
