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本文讨论用空间采样技术测绘水下声场空间分布规律的实验。进行这样的实验首先要有一个小的无方向性的水听器。实验时水听器在被测声场中扫描，连续记录声压和探头坐标的读数。为了避免相位计算中容易出现的差错，将原始数据通过内插法进行一次变换，从而获得了满意的结果。本文分别给出一个平面波声场和一个尖劈边缘附近衍射声场的声压幅度和相位分布图，这些实验结果显示了场分布的清晰图象。和理论图形相比较，说明实验结果是可靠的。
This article discusses the spatial sampling technique for mapping the spatial distribution of underwater sound field experiments. The first such experiment was to have a small non-directional hydrophone. During the experiment, the hydrophone scans in the sound field under test and continuously records the readings of sound pressure and probe coordinates. In order to avoid the error prone to the phase calculation, the original data was transformed by interpolation one by one, so as to obtain satisfactory results. In this paper, the amplitude and phase distribution of sound pressure of a flat wave acoustic field and a diffracted sound field near the edge of a wedge are given respectively. These experimental results show a clear image of the field distribution. Compared with the theoretical graph, it shows that the experimental result is reliable.