氧化铝薄膜式湿度仪的在线应用

通过对氧化铝薄膜式湿度仪工作原理的介绍，分析了此类湿度仪的良好性能，并比较了压力露点与常压露点的数值差异。针对宝钢冷轧厂能源车间的在线实际应用，较详细地分析了影响湿度测量的两种取样装置结构及其用途，以及介质的工作压力温度和响应时间对测量结果影响的剖析。该湿度仪可及时准确地测量湿度值，对使用在线氧化铝膜湿度仪的用户有所启发。

Online Application of Thin-film Aluminium Oxide Humidity Meter

Through the introduction of the operating principle of thin-film aluminum oxide humidity meter, its good performance was analyzed and the value difference between pressure dew points and dew points at normal pressure were compared. In accordance with the online application in energy resource workshop in Baosteel, the structures of two sampling devices influencing moisture measurement and its functions are analyzed in detail. Meanwhile, the influence on results of measurement caused by temperature, pressure and response time of media is dissected. It is able to measure the precise humidity values in time by using this instrument. The paper will enlighten all the users of online thin-film aluminium oxide humidity meter.