Abstract：In this paper，design idea and specifications of water saturator in standard humidity generator are mentioned .Some problems of standard humidity generator are resolved with tower-plate labyrinth design，such as stability and uniformity of humidity field at temperature range from -30℃ to +40℃,and ice-blocking as temperature is below of freezing.The standard humidity generator has authenticated to first class standard,and it can be used for static test on all kinds of humidity sensors.
2011, Vol. 28 
