We have developed and experimentally implemented an adaptive laser vector-phase hydroacoustic measuring system, which allows one to determine the total acoustic intensity vector. A receiving element of the measuring system comprises six spatially separated fibre-optic coil-type sensors. Signals from the sensors are phase demodulated by using a six-channel adaptive holographic interferometer based on dynamic holograms multiplexed in a photorefractive CdTe crystal. Performance of the developed measuring system has been experimentally tested by determining the bearing and localisation of a source of a weak hydroacoustic field.

中文翻译：

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激光自适应矢量相位水声测量系统

我们已经开发并实验实施了一种自适应激光矢量相位水声测量系统，它可以确定总声强度矢量。测量系统的接收元件包括六个空间分离的光纤线圈型传感器。来自传感器的信号通过使用六通道自适应全息干涉仪进行相位解调，该干涉仪基于在光折射 CdTe 晶体中多路复用的动态全息图。通过确定弱水声场源的方位和定位，已对开发的测量系统的性能进行了实验测试。