压差式光纤矢量水听器声压相位灵敏度研究

该文介绍了压差式光纤矢量水听器及其基元的工作原理,并分析了光纤层等效处理对仿真结果的影响。基于有限元法对压差式光纤矢量水听器的基本性能进行了仿真分析,根据仿真模型所选定的参数研制压差式光纤矢量水听器样品,并对样品在频率为20～1 000 Hz时进行了测试。测试结果表明,声压相位灵敏度的仿真计算结果与实验测试结果基本一致,平均差值约为1.0 dB。研究结果表明,采用有限元法对压差式光纤矢量水听器的声压相位灵敏度进行仿真具有可行性。

Study on Acoustic Pressure Phase Sensitivity of Differential Pressure Optical Fiber Vector Hydrophone

The working principle of the differential pressure fiber vector hydrophone and its elements are introduced,and the influence of the equivalent treatment of the fiber layer on the simulation results is analyzed in this paper.Based on the finite element method, the performance of differential pressure fiber vector hydrophone is simulated.Based on the parameters selected by the simulation model, a differential pressure fiber optic vector hydrophone sample is developed and tested at a frequency of 20 Hz to 1 000 Hz.The test results show that the simulation results of the phase sensitivity of the acoustic pressure are basically consistent with the experimental results, and the average difference is about 1.0 dB.The results show that it is feasible to use the finite element method to simulate the acoustic pressure phase sensitivity of the differential pressure fiber optic vector hydrophone.