干涉型光纤水听器闭环工作点控制的实现与信号的获取

Implement of controling the working point of an interferometric fiber-optic hydrophone by closed loop and pick-up of the signal

本文简单介绍了干涉型光纤水听器的基本原理、信号检测的主要方法，详细讨论了闭环控制工作点方法的原理，并编制软件，在实际光纤水听器系统中应用得到稳定的水声信号，最后给出了用硬件电路实现工作点控制的原理框图。

In this paper several basic signal demodulation methods of interferometric fiber optic hydrophones are introduced and the feasibility of its work point control by closed loop is reasoned. Experimentally testes by software control are given. We also give a figure to control the work point by hardware.