Abstract

The paper presents the results of experimental studies of a portable measuring system based on two inertial fiber-optic accelerometers with a multiturn optomechanical transducer placed in a Mach—Zehnder fiber-optic interferometer arm used as a sensitive element. Passive phase demodulation using a fiber-optic splitter 3 × 3 makes it possible to record interferometer output signals in the presence of a thermal drift of the operating point. The possibility of recording using such an acoustic and hydroacoustic pressure gradient system is shown.

中文翻译：

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两个光纤加速度计系统记录水声压力梯度

摘要

本文介绍了基于两个惯性光纤加速度计的便携式测量系统的实验研究结果，其中多圈光机械换能器放置在用作敏感元件的 Mach-Zehnder 光纤干涉仪臂中。使用 3 × 3 光纤分路器的无源相位解调可以在存在工作点热漂移的情况下记录干涉仪输出信号。显示了使用这种声学和水声压力梯度系统进行记录的可能性。