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本文研究了有限长充水圆柱置于水中，外声场透射形成的腔内声场自适应有源控制实验研究。结果显示：由于圆柱结构与水介质的耦合，有源控制中的声控制方法能够较好地抵消声腔主导模态和强耦合的结构主导模态，因而能够抵消在圆柱腔内较宽频带范围内的声场。实验还研究了消声频带，误差传感器布放位置及消声区域等问题。
In this paper, an experimental study on the adaptive control of acoustic field in a cavity formed by the transmission of a finite length filled water column in water and outside sound field is studied. The results show that due to the coupling between the cylindrical structure and the water medium, the acoustic control method in active control can better counteract the dominant mode of the acoustic cavity and the dominant mode of the strongly coupled structure, so as to offset the influence of the acoustic pressure in the wider frequency range of the cylindrical cavity Sound field. Experiment also studied the anechoic band, the error sensor placement and muffler area and other issues.