一种自主定向磁复合三维MEMS矢量水听器

设计了一种自主定向的磁复合三维MEMS矢量水听器。该矢量水听器采用三维MEMS加速度传感器与磁传感器结构复合设计,并采用与信号处理电路紧靠方式,可减小噪声干扰及抑制信号衰减。通过磁复合三维MEMS矢量水听器解决单个矢量水听器定向精度不高问题。该矢量水听器完成了水下驻波场测试和无磁转台测试,测试结果验证了利用磁传感器补偿矢量水听器定向方法的可行性。

An Independent Orientated Magnetism-multiple Three-dimensional MEMS Vector Hydrophone

An independent orientated magnetism-multiple three-dimensional MEMS vector hydrophone is presented that can be used for target differentiating. The vector hydrophone is designed by a three-dimensional MEMS accelerometer and magnetism sensor. The accelerometer is close mounted to the signal processor so that the noise can be reduced and signal attenuation can be restrained. Since the single vector hydrophone cannot achieve a high orientate precision,it is solved by this magnetism-multiple three-dimensional MEMS vector hydrophone. The underwater standing wave field test on this vector hydrophone,as well as the non-magnetism rotate platform test,has been completed. The results demonstrate that it is feasible to raise directional precision by a vector hydrophone integrated with a magnetism sensor.