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清脆地传来一曲《致爱丽丝》,莫以为是哪位高手在弹琴,实际上是我扭了一下发条后,音乐盒在发声呢.我就“音乐盒的发音原理”这一问题,利用学过的物理知识对它进行了一番研究.首先,声音是怎么发出来的?自然是振动发声.那么是什么使什么元件振动呢?来看拆卸后的图片(如图1)就知晓了.原来标号为A的轴转动,A上面的不同的小疙瘩使零件B的不同小弹片振动从而发声.然而,像《致爱丽丝》这种名曲,
Crisply heard a song “to Alice,” Mozhe is a master who is playing the piano, in fact, I twist the clockwork, the music box is sounding it. I “music box pronunciation principle ” A problem, the use of the learned physics knowledge to carry out some research on it.First of all, how is the sound sent out? Naturally vibration sound .What is what makes the components vibrate? Look at the demolition of the picture (Figure 1 ) Is known.The shaft, labeled A, turns and the different small lumps on A vibrate and make the different small shrapnel of Part B. However, like the famous song “Alice”