一、前言 在干燥、冷藏及某些生产工艺和科学实验中,需要严格控制空气的湿度.通常都是采用干-湿球温度计测出干球温度和湿球温度,然后查湿空气图表得出含湿量、相对湿度、焓等等.湿空气图表中的湿球温度是理论湿球温度,也就是绝热饱和温度.绝热饱和温度是湿空气经过一绝热饱和过程后达到的温度.在一定的湿空气状态下,绝热饱和温度有完全确定的数值,因而它是状态参数.用于实际测量的湿球温度计所处的情况和绝热饱和器中的情况并不相同.因为实测的湿球温度比较接近绝热饱和温度,所以通常就用它来 I. Introduction In dry, cold storage and some production processes and scientific experiments, the humidity of the air needs to be strictly controlled, usually the dry-wet bulb temperature is used to measure the dry-bulb temperature and the wet-bulb temperature, and then the wet-air chart is obtained Moisture content, relative humidity, enthalpy, etc. The wet bulb temperature in the wet air chart is the theoretical wet bulb temperature, that is, the adiabatic saturation temperature, which is the temperature reached by the moist air after an adiabatic saturation process, Wet air temperature, adiabatic saturation temperature has a fully determined value, so it is the state parameters used in the actual measurement of the wet bulb thermometer situation and adiabatic saturator situation is not the same as the measured wet bulb temperature comparison Close to the adiabatic saturation temperature, so it is usually used