智能手机测试摩擦因数

Testing the Friction Coefficient with a Smartphone

使用生活中易得的物品,利用智能手机设计了测试两物体之间静摩擦因数的实验.并探究了接触面粗糙程度和正压力对静摩擦因数的影响.更进一步地,采用动力学方法测试了物体之间的动摩擦因数,分析比较了同种物体之间的动摩擦因数和静摩擦因数大小之间的关系.

In this work,an experiment is designed to test the static friction coefficient between two objects easy to get in life by using of a smartphone.The influence of contact surface roughness and positive pressure on the static friction coefficient is also studied.Furthermore,the coefficient of kinetic friction coefficient between objects is measured by dynamic method,and the relationship between coefficient of kinetic friction and static friction one of the same kind of objects is analyzed and compared.