基于DIS传感器的摩擦力实验装置

Experiment device of friction force based on DIS sensor

基于DIS传感器自制摩擦力实验装置,探究滑动摩擦力大小影响因素.利用推杆带动底板稳定运动,提供更稳定的摩擦力;采用DIS力传感器实时动态、精确地采集数据;通过3D设计的各种规格的摩擦块,翻转摩擦块改变接触面粗糙程度,操作方便;装置还可翻转90°,通过改变橡皮筋匝数改变正压力,利用DIS精确测量出正压力大小,控制重力不变,研究滑动摩擦力与压力的关系;还能研究滑动摩擦力与物体重力、接触面面积或相对运动速度的关系.

A self-made experiment device was used to explore the influencing factors of sliding friction force based on the DIS sensor.The baseplate driven by a pushrod moved stably to provide more stable friction,and DIS sensor collected data in real time.The surfaces of the 3D printed friction blocks were pasted with different materials,and the roughness of the contact surface was changed by flipping the friction block.The device could be flipped 90°,the positive pressure was changed by changing the number of turns of the rubber band,and the relationship between sliding friction force and positive pressure was studied when the gravity of block was constant.The relationship between sliding friction force and gravity,contact surface area or relative motion velocity could also be studied.