DEVELOPMENT OF DYNAMICAL MEASURING INSTRUMENT FOR WATER VAPOR PERMEABILITY

摘要

PURPOSE: A moisture permeability measuring device is provided to measure the moisture permeability under identical condition of temperature and humidity and air current at constant location. CONSTITUTION: A moisture permeability measuring device comprises constant-temperature and constant-humidity chamber equipped with a transparent main door in the front for observation, a moisture permeability measuring module including an electronic balance which measures weight of one or more moisture permeable cup(300), and an exterior control device which controls the constant-temperature and constant-humidity chamber and the measuring module and stores the measuring data of the electronic balance. The constant-temperature and constant-humidity chamber additionally includes a main fan(140) which inhales inner air from the lower part of the constant temperature and constant humidity and vertically spurts the air.