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前言金属的密度是表征材料特性的重要物理量之一。人们常常应用密度研究金属与合金的某些物理性能,借助密度方法测量金属细丝的直径,薄片的厚度以及形状不规则物体的体积。电阻系数测定中横截面积的测量也是用密度方法进行的。
Introduction Density of metals is one of the most important physical quantities that characterize material properties. It is often used to study the density of some of the physical properties of metals and alloys, with the help of the density method to measure the diameter of the metal filaments, the thickness of the sheet and the shape of the irregular shape of the volume. The determination of the cross-sectional area in the resistivity measurement is also done using the density method.