环境试验设备参数测量──盐雾交变试验设备.pdfVIP

nvironmental 环境试验设备 ETest Equipment 环境试验设备参数测量──盐雾交变试验设备 伍伟雄 （工业和信息化部电子第五研究所，广州 510610） 摘要：分析盐雾交变试验设备的功能和实际使用情况，得出其参数测量可依据的相关标准。基于盐雾污染影 响干湿球法测量湿度的事实，提示湿度测量时应注意盐雾污染。分析干湿球系数对干湿球法测量湿度的影响 和通风速度对干湿球系数的影响，提示对采用自然空气对流恒温恒湿的盐雾交变试验设备的湿度测量，注意 干湿球系数 A 值对湿度测量的影响。同时，对空气自然对流的干湿球湿度表的干湿球系数 A 值的标定，提出 一种简易的方法。 关键词：试验设备；参数；测量；盐雾；污染；干湿球法；湿度 中图分类号：TB99 文献标识码：B 文章编号：1004-7204（2013）02-0044-04 The Parameters Measurement of Environmental Testing Equipments──Salt Mist Cyclic Testing Equipments WU Wei-xiong （The 5th Electronics Research Institute of the Ministry of Industry and Information Technology of the Peoples Republic of China，Guangzhou 510610） Abstract： Through analysis the function and practical use of salt spray cyclic test equipments, this paper reaches a conclusion that parameter measurement of equipment can be based on the relevant standards. Based on the fact that salt spray contamination of wet and dry bulb humidity measurement, it points out that humidity measurements should pay attention to the salt spray contamination. Analysis of wet and dry bulb coefficient of the wet and dry bulb method of measuring the effects of humidity and ventilation rate coefficient of the wet and dry bulb, it points out that humidity measurement using natural air convection constant temperature and humidity of the salt spray cyclic test equipments, and notes that the coefficient of the wet and dry bulb A value of humidity measurement. According to the calibration coefficient A value of the natural convection of air wet and dry bulb hygrometer wet and dry bulb, it proposes a simple metho