According to the requirement of standard humidity generator of dew point generator in JJG 499-2021"Verification Regulation of Precision Dew Point Instrument",the dew point generator based on saturation method and split method is developed in this paper.At the same time,in the range of dew-point(-70～+20)℃,the cold mirror dew-point meter was used to measure the dew-point stability,and the uncertainty was evaluated.The results show that the measurement value of the device is consistent with the humidity standard of precision cold mir-ror dew point instrument in the uncertainty range,and can meet the calibration and verification work of various common dew point instruments.
关键词
饱和法/分流法/露点发生装置/精密露点仪
Key words
saturation method/diversion method/dew point generator/precision dew point meter
维普
万方数据