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利用一个 φ８ ｍｍ水听器和一个 ２０元阵在水洞中测量了湍流边界层起伏压力的点功率谱密度和波数频率谱密度。点功率谱密度测量结果的无量纲表示和 Ｂｕｌｌ Ｍ． Ｋ．等人风洞中的测量结果相吻合。波数频率谱的测量结果中能清楚地看到迁移峰，从而可进一步从迁移峰所在的位置求得迁移速度。同时还测量了一个接收面积为 １００ ｍｍ×６０ ｍｍ的 ＰＶＤＦ水听器对湍流边界层压力起伏的响应谱，将其结果和 φ８ ｍｍ水听器测量结果的对比，可以清楚看到 ＰＶＤＦ水听器对湍流边界层压力起伏的空间滤波作用。
The point power spectral density and the wavenumber frequency spectral density of the turbulent boundary layer undulation pressure were measured in a water tunnel using a φ8 mm hydrophone and a 20-element array. The Dimensionless Representation of Point Power Spectral Density and Bull M. K. Wind tunnel and other people in the measurement results match. The migration peak can be clearly seen in the measurement results of the wavenumber frequency spectrum, so that the migration speed can be further obtained from the position where the migration peak is located. At the same time, a response spectrum of the pressure fluctuation on the turbulent boundary layer of a PVDF hydrophone with a receiving area of 100 mm × 60 mm was also measured. Comparing the result with that of the φ8 mm hydrophone, it is clear that the PVDF hydrophone Spatial Filtering of Pressure Fluctuations in Turbulent Boundary Layer.