弹簧振子是机械振动的典型例子,但有关弹簧振子的演示实验较少,作者用磁性较强的磁钢和弹簧振子组合成一种磁性弹簧振子,它能将弹簧振子的一系列实验演示出来。如果配以长余辉慢扫描示波器,那么弹簧振子的各种振动图像均能显示在示波器的荧光屏上,极大地提高了课堂的教学效果。实验装置介绍(1)螺旋弹簧 S 的绕 The spring oscillator is a typical example of mechanical vibration, but there are few demonstration experiments about the spring oscillator. The author uses a magnetic steel and a spring oscillator to form a magnetic spring oscillator, which can demonstrate a series of experiments of the spring oscillator. If long oscilloscopes are slowly scanned with a long afterglow, the various vibration images of the spring oscillator can be displayed on the oscilloscope’s fluorescent screen, which greatly improves the classroom teaching effect. Experimental Device Introduction (1) Coil Spring S Winding