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Test Principle And method of Sweating Guarded Hotplate

Human body thermal radiation are sensible heat (hot) and the latent heat of evaporation (heat) in two ways, therefore, influence of clothing thermal comfort index is mainly clothing diathermy (thermal resistance) and clothing performance of moisture permeability (wet resistance). Due to the temperature gradient in layers of clothing heat resistance, known as thermal resistance, its physical meaning is both sides of the temperature difference and vertical through the clothing of the ratio of the heat flow per unit area, reflects the clothing insulation ability.

Test Principle of Thermal and moisture resistance tester :In a standard test environment, heat fixed aluminum or copper plates to keep the aluminum or copper plates at a fixed temperature to test the heating power.Similarly, a copper plate or an aluminum sheet covers the power of the same condition after testing the material, depending on the power difference between the two and the size of the test disk area.The thermal resistance or moisture resistance of the test sample can be calibrated.


Test Method of Sweating Guarded Hotplate:Thermal and moisture comfort is people in addition to the basic block body warm higher requirement for fabric from outside the thermal resistance and moisture resistance as a measure of the fabric is of great significance to the comfortable sex index thermal resistance to characterization of the heat transfer performance of the thermal resistance of fabric has better protective effect, we tend to choose summer wet resistance of the smaller clothes, the clothes wear, timely to human body moisture away from the sense that gives a person is dry.
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