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根据干涉花样怎样计算两相干波源之间的距离呢?方法如下.1两相干波源之间有奇数(2n+1)条明纹一般情况下,两相干波源所形成的干涉花样中,最中间的一条是中央明纹,其他明纹关于中央明纹对称分布(形成双曲线簇),可见明纹总是奇数(2n+1)条.例1.如图1所示是两相干波源S1、S2形成的对称分布的干涉花样,两相干波源之间共有5条明纹,假定波长为λ,试求两相干波源S1、S2之间的距离d.
How to calculate the distance between two coherent wave sources according to the interference pattern? The method is as follows.1 There are odd (2n + 1) bright lines between two coherent wave sources In general, among the interference patterns formed by two coherent wave sources, the middle One is the central bright lines, the other bright lines symmetrical about the central bright lines (forming hyperbolic clusters), we can see the bright lines always odd (2n + 1) .Example 1. As shown in Figure 1 is the two coherent sources S1, S2 Formed symmetrical pattern of interference, there are five bright lines between the two coherent wave sources, assuming the wavelength λ, try to find the distance d between two coherent wave sources S1, S2.