驻波的能量和能流

ENERGY AND ENERGYFLOW OF STANDING WAVES

本文对驻波的能量和能流作了比较详细深入的分析和讨论，导出了定量的表达式，方法是简明而基本的。文章指出，在驻波中干涉没有引起能量的重新分布，但发生了能量的转换．文章还指出，不仅在波节，而且在波腹处，都没有能量的传递和通过，能量只能在相邻波节和波腹之间转移、流动；并且回答了为什么，给出了物理解释。最后，文章指出，“驻波”一词用得很好，我们必须充分注意它的“驻”字和“波”字两方面的涵义。

In this paper, the energy and energyflow of standing waves are analysed and discussed in detail and deep; and the quantitative expressions are derived, the methods arc simple and fundamental. The paper points out that in standing waves the interference does not result in redistribution of energy, but produces the transformation of energy.Furthermore, the paper points out that the energy does not pass nodes, and notantinodes(loops)either, it can merely transit between node and its adjacent antinodes; and answers why, gives physical explanation. At last, the paper points out that in the name or term 'standing wave'which is very right used we must sufficiently pay attention to implications of both of 'standing'and 'wave'.