摆最重要的特性是它只愿以一种频率,即通常所称的固有频率摆动.摆和振动的琴弦之间有一些相似之处. 当琴弦上发出的声音逐渐变弱,即振幅下降时,它发出的音调依然不变,既然音的高低和振动的频率对应,耳朵实际上就在提示我们,琴弦的振动也是等时的. 当摆受到外界的干扰而被激励时,它相应的摆动规律则依赖于干扰振频是否和它所希望的一致.当外界的激励和摆的固有频率一致时,才可能将尽可能多的机械能传给摆,这就是共振效应.很多乐器的共鸣箱利用 The most important feature of the pendulum is that it only wishes to oscillate at a frequency, the so-called natural frequency. There are some similarities between the pendulum and the vibrating string. When the sound on the string gradually weakens, ie the amplitude When it falls, the tone it sends out remains unchanged. Since the height of the sound corresponds to the frequency of the vibration, the ear actually reminds us that the vibration of the string is also isochronous. When the pendulum is stimulated by the outside world, it is excited. The corresponding oscillating rule depends on whether the disturbing vibration frequency is consistent with what it wants. When the external excitation and the natural frequency of the pendulum coincide, it is possible to transmit as much mechanical energy as possible to the pendulum. This is the resonance effect. Many instrumental Resonance box utilization