矢量水听器在有限空间内的测试条件分析与试验研究

Analysis and Experimental Study on Testing Conditions of Vector Hydrophones in Limited Space

矢量水听器的校准工作是矢量水听器研制和工程应用中的重要环节。目前,常规校准矢量水听器的方法存在明显劣势,这对于研制性能更优越的矢量水听器是不利的。文章参考室内声学理论,对密闭小型水槽内的声压分布状况进行仿真分析,包括水槽本身引起的声模态、水槽尺寸和壳体厚度等对声场分布均匀性的影响,最终通过试验验证了仿真结果的准确性和小型水槽内矢量水听器测试条件的可行范围,分析结果为寻找更好的矢量水听器校准方法提供了新思路。

Vector hydrophone calibration is an important part of the development and engineering application of vector hydrophones.At present,the conventional methods for calibrating vector hydrophones have obvious disadvantages.It is disadvantageous to develop vector hydrophone with better performance.According to the theory of indoor acoustics,the sound pressure distribution in a small closed water tank is simulated and analyzed,including the acoustic mode caused by the water tank itself,and the effect of the size of the water tank and the thickness of the shell on the uniformity of the sound field distribution.Finally,the accuracy of the simulation results and the feasible range of the test conditions of the vector hydrophone in the small water tank are verified through experiments.The analysis results provide new ideas for finding a better vector hydrophone calibration method.