【摘要】 利用智能手机搭建了一套可视化的简谐振动系统,通过小球在液体中欠阻尼振动的振幅衰减,测量液体的黏滞系数。实验使用手机Phyphox软件中的磁力计传感器,将小球欠阻尼振动振幅的测量转化为磁感应强度大小的测量,并通过Origin软件对采集的数据进行非线性拟合,得到液体阻尼因数,求出液体的黏滞系数。更多还原

【Abstract】 This experiment builds a set of visualized simple harmonic vibration system with smartphones.In this experiment,the liquid viscosity coefficient is calculated by observing the ball’s amplitude attenuation in the process of damped oscillation in liquids.Using the magnetometer sensor in the Phyphox,the measurement of the damped amplitude of the ball is transformed into the magnetic induction,and data can be processed by nonlinear fitting through the Origin.According to the fitting result,the liquid damping constant can be determined,and the viscous coefficient of the liquid can be calculated.更多还原