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| 对基于光纤光栅的两种水听器灵敏度的讨论 | |
| 引用本文： | 谭波,黄俊斌,李日忠,顾宏灿,何琳.对基于光纤光栅的两种水听器灵敏度的讨论[J].应用声学,2008,27(3):227-233. |
| 作者姓名： | 谭波 黄俊斌 李日忠 顾宏灿 何琳 |
| 作者单位： | 1. 武汉海军工程大学兵器工程系新概念武器研究室,武汉,430033;武汉海军工程大学振动与噪声研究所,武汉,430033 2. 武汉海军工程大学兵器工程系新概念武器研究室,武汉,430033 3. 武汉海军工程大学振动与噪声研究所,武汉,430033 |
| 摘 要： | 本文简单介绍了基于光纤光栅的光纤布喇格光栅(FBG)水听器以及分布反馈式(DFB)光纤激光水听器的基本工作原理与信号解调的基本方法。在此基础上提出了FBG水听器和DFB光纤激光水听器波长漂移率、压力灵敏度系数、相位灵敏度与相位灵敏度级以及电压灵敏度的定义以及物理涵义.并且对干涉型光纤水听器与DFB光纤激光水听器在相位灵敏度以及物理涵义上的区别进行了说明. |
| 关 键 词： | FBG水听器 DFB光纤激光水听器 波长漂移灵敏度 相位灵敏度 电压灵敏度 |
| 修稿时间： | 2006年10月8日 |
Discussion on the sensitivities of two kinds of hydrophones based on fiber grating |
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| TAN Bo,HUANG Jun-Bin,LI Ri-Zhong,GU Hong-Can and HE Lin.Discussion on the sensitivities of two kinds of hydrophones based on fiber grating[J].Applied Acoustics,2008,27(3):227-233. | |
| Authors: | TAN Bo HUANG Jun-Bin LI Ri-Zhong GU Hong-Can and HE Lin |
| Institution: | 1 New Weapons Research Office,Dept.of Weaponry Eng.,Naval Univ.of Engineering,Wuhan 430033) (2 Research Inst.of Vibration & Noise,Naval Univ.of Engineering,Wuhan 430033) |
| Abstract: | The fiber Bragg grating (FBG) hydrophone and the distributed feedback (DFB) fiber laser hydrophone are recent rapidly developing underwater sound detection technologies based on fiber grating.In this paper,their fundamental operating principles and the ways of their signal demodulation are briefly presented,and the sensitivities of the two kinds of hydrophones are defined in some form.Finally,differences between the definitions of the sensitivities of the interferometer fiber-optic hydrophone and the DFB fiber laser hydrophone are described. |
| Keywords: | FBG hydrophone DFB fiber laser hydrophone Wavelength shift sensitivity Absolute phase sensitivity Voltage sensitivity |
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