湿度是湿热试验设备的关键参数,迅速、充分、适量地加湿,是保证所要求湿度的重要环节。湿热试验设备的加湿,可以通过多种方法实现,如喷雾加湿、蒸汽加湿、敞开液面加湿、气泡加湿和化学盐溶液加湿法等。交变湿热试验设备大多采用喷雾加湿或蒸汽加湿法,因此本文着重分析这两种加湿方法。 Humidity is the key parameter of the wet heat test equipment, quickly, fully, moderately humidification, is an important part to ensure the required humidity. Moist heat test equipment, humidification, can be achieved by a variety of ways, such as spray humidification, steam humidification, open the surface humidification, bubble humidification and chemical salt solution humidification method. Alternating hot and humid test equipment mostly spray humidification or steam humidification method, this article focuses on the analysis of these two humidification methods.