Development of a Measurement System of the Friction Coefficient on the Skin of the Human Hand Using Load Cell

− The constitutional diagnosis using human skins is classified to palpation in oriental medicines. From Sasang constitutional medicine which is one of oriental medicines, human could be divided by the properties of their skins such as texture, roughness, hardness and elasticity. Especially, the friction coefficient and roughness of skins have big discrimination ability in the classification of human constitutions But this classification has been dependent on the qualitative judgment of an oriental doctor. In this paper, we present the quantitative measurement method, equipment of the friction coefficient of human hands using the load cell for oriental medicine, and diagnosis standards of human constitution based on the principal of Sasang constitutional medicine. The expanded uncertainty for the measurement of the friction coefficient was below 2.0 %.