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在传统教学中,对于受迫振动的频率等于驱动力的频率,与固有频率无关的规律一般都是由教师直接告诉学生,学生被动接受,而共振曲线也是直接定性给出的,学生没有主动探索的过程体验,也没有进行定量分析。笔者通过创新设计,在实验中借助传感器技术定量测量驱动力频率和受迫振动频率,然后经过对比得出规律:通过定量测量驱动力频率和受迫振动
In traditional teaching, the frequency of forced vibration is equal to the frequency of driving force, and the law unrelated to the natural frequency is usually taught by the teacher directly to the students, the students passively accept the resonance curve is also given qualitatively, the students did not take the initiative to explore Process experience, nor quantitative analysis. Through innovative design, the author quantitatively measured the frequency of driving force and the forced vibration frequency by means of sensor technology in experiment, and then got the law through comparison: by quantitatively measuring the frequency of driving force and forced vibration