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摩擦力测定装置种类繁多,这里列举的装置仅用于测定诸如测量仪器中齿轮齿条的摩擦力。本文中的测量对象,是在凸轮秤和弹簧秤中将凸轮和弹簧的直线移动转变为指针的回转运动时所使用的小型齿轮和齿条。上述秤中所用的齿轮齿条的啮合摩擦力是决定计量精度的重要因素。例如,在秤重为5公斤的齿条侧换算凸轮秤中,如果齿轮的啮合摩擦力为5克的话,就无法制造精度高于1/1000
A wide range of friction measuring devices, the device listed here is only used to measure such as the gear rack and pinion friction. The measurement objects in this article are the small gears and racks used to convert the linear movement of cams and springs into the rotational movement of the hands in a cam scale and spring balance. The meshing friction of the rack and pinion used in the above scales is an important factor that determines the measurement accuracy. For example, in a rack-side conversion cam scale weighing 5 kg, if the meshing friction of the gear is 5 g, the accuracy can not be made higher than 1/1000