| 摘要 |
Surface testing friction apparatus comprises a trolley (1) and an inclined ramp (15). The trolley and ramp are arranged such that a slider (12) on the trolley comes into contact with the surface (22) during a test run over a surface, the friction coefficient of which is to be determined, the mass of the trolley (1) length (L) and a height (H) of the ramp (15) are selected such that for a slider of given properties, materials and dimensions the critical film thickness for a wet surface is approximately 2µm. |
