循环凝结镜（ＣＣＭ）型湿度计ＰｉｅｔｅｒＲＷｉｅｄｅｒｈｏｌｄ１．前言湿度测量在提高产品质量、减少成本及改善工作环境方面起着举足轻重的作用，以至于早期和简单的湿度或露点测量仪（如干湿球湿度计，毛发湿度计及湿度怀等）再也不能满足大多数工业应用的精度要求... Circulating coagulation mirror (CCM) hygrometer PieterRWiederhold1. Introduction Humidity measurement plays a decisive role in improving product quality, reducing costs and improving the working environment, so that early and simple humidity or dew point gauges (such as wet and dry bulb hygrometers, hair hygrometers and humidity holders, etc.) Can not meet the accuracy requirements of most industrial applications ...