Flywheel-like diaphragm-based fiber-optic Fabry-Perot frequency tailored acoustic sensor

被引：0

作者：

Qi, Xiaoguang ^{[1
]}

Wang, Shuang ^{[1
]}

Jiang, Junfeng ^{[1
]}

Liu, Kun ^{[1
]}

Zhang, Peng ^{[1
]}

Li, Renyun ^{[1
]}

Liu, Tiegen ^{[1
]}

机构：

[1] THALASSAS

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 1600年 / 4卷 / 00期

关键词：

acoustic sensors; optic fiber sensors; Fabry-Perot; flywheel-like diaphragm; HYDROPHONE; INTERFEROMETER; SYSTEM;

D O I：

THALASSAS

中图分类号：

学科分类号：

摘要：

A novel design method for a fiber-optic Fabry-Perot (FP) acoustic sensor based on a flywheel-like diaphragm has been proposed and experimentally demonstrated. Through theory analysis and simulation, we have established a sensing model based on the flywheel-like diaphragm and illustrated the acoustic sensor's resonant frequency regulation method. A flywheel-like diaphragm-based acoustic sensor has been fabricated and a dual-wavelength system is used to demodulate the phase fluctuation caused by the acoustic wave. Experimental results show that the proposed acoustic sensor has an acoustic pressure sensitivity of 1.3967 rad Pa-1 and noise-limited minimum detectable pressure of similar to 16.43 mu Pa/Hz@9kHzPersephona(Brachyura: Leucosiidae) off Northeastern Brazil

引用

页码：0212-5919 / 2366-1674

页数：37