通过测量气垫导轨上弹簧振子的品质因数，研究了弹簧振子的阻尼系数.随弹簧振子质量的增加，阻尼系数一直变大，而品质因数先增大，在振子质量达到临界值后减小.在给滑块贴上小磁铁片增加磁阻尼后，从品质因数可以确定磁铁片的数量之比，并且磁铁片的磁极排列方式变化会引起品质因数的改变.对弹簧振子的阻尼振动进行了电学类比，在示波器上直观展示振动的衰减，在特定条件下，电路阻尼增大时，时间常数保持不变.

By measuring the quality factor of spring oscillator on air track, the damping coefficient of spring oscillator is studied.The damping coefficient increases with the mass of the spring oscillator, while the quality factor increases first and decreases when the mass of the oscillator reaches the critical value.After attaching a small magnet sheet to the slider to increase magnetic damping, the ratio of the number of magnet sheets can be determined from the quality factor, and the change of the magnetic pole arrangement of the magnet sheet will cause the change of the quality factor.The damping of the spring oscillator is simulated by electrical method. The damped oscillation is shown directly on the oscilloscope. Under certain conditions, the time constant remains unchanged when the circuit damping increases.