Patent ID: 6477888
Filing Date: 2002-11-12
Classification: G01N

Abstract:
A moisture permeability measuring device which comprises:a precision electronic balance installed on a damping stand (shock absorbing stand) installed in a constant temperature/humidity room; a measuring cup having a peripheral part and a water containing part; low viscosity resin permeated into said peripheral part of said measuring cup; a packing part formed by resin on the top and bottom of the peripheral part; a specimen formed by setting a sample having a seal part formed by filling with resin covering the peripheral surface; and said measuring cup having a cup main body with an open top and a retaining ring that clamps the seal part of said sample between itself and a level difference part, said level difference part comprising level differences smaller than the thickness of said seal part and being formed on the top of the cup main body; thermocouples immersed in water stored in the cup main body and installed through the peripheral wall part of the cup main body; a temperature-humidity sensor extending to a space between the water surface and the sample; a water supply and drain passage opened/closed by a valve in the bottom of said cup main body; and a water level drainage opened/closed by a drain valve installed below said temperature-humidity sensor on the peripheral wall part of the cup main body.