| 带温度补偿的新型光纤布拉格光栅水听器 |
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| 引用本文： | 黄晟晔,周金海,倪娟,张军,陈毅,周志军.带温度补偿的新型光纤布拉格光栅水听器[J].光机电信息,2011,28(5):22-26. |
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| 作者姓名： | 黄晟晔 周金海 倪娟 张军 陈毅 周志军 |
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| 作者单位： | 浙江大学信息与电子工程学系;杭州应用声学研究所; |
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| 摘 要： | 本文研究了一种新的带有温度补偿功能的光纤布拉格光栅水听器封装.这种水听器的传感机制在于将水下声压信号转换为圆形薄板的轴向弹性振动,通过弹光效应实现光纤光栅中心波长的瞬时改变,从而对经过光纤布拉格光栅(Fiber Bragg grating,FBG)的反射光信号实现幅度调制.对2.5～12 kHz水声频率范围进行了实验测...
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| 关 键 词： | 光纤布拉格光栅水听器 声压灵敏度 温度补偿 |
Novel Fiber Bragg Grating Hydrophone with Temperature Compensation |
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| HUANG Sheng-Ye,ZHOU Jin-Hai,NI Juan,ZHANG Jun,CHEN Yi,ZHOU Zhi-Jun.Novel Fiber Bragg Grating Hydrophone with Temperature Compensation[J].OME Information,2011,28(5):22-26. |
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| Authors: | HUANG Sheng-Ye ZHOU Jin-Hai NI Juan ZHANG Jun CHEN Yi ZHOU Zhi-Jun |
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| Affiliation: | HUANG Sheng-Ye1,ZHOU Jin-Hai1,NI Juan1,ZHANG Jun2,CHEN Yi2,ZHOU Zhi-Jun1(1.Department of Information Science & Electronic Engineering,Zhejiang University,Hangzhou 310027,China,2.Hangzhou Applied Acoustics Research Institute,Hangzhou 310014,China) |
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| Abstract: | A new package of fiber Bragg grating hydrophone with temperature compensation provides an improvement of sensitivity in underwater acoustic measurement at wide frequency range,from 2.5 kHz to 12 kHz.The acoustic pressure is transduced into elastic vibration of a circle metal disk,resulting in an intensity modulation of light wave when reflected from the FBG.The experiment results show that the packaged fiber Bragg grating hydrophone has achieved an average sensitivity of-185 dB re 1 V/μPa and a minimum detectable acoustic pressure of 900μPa/Hz1/2. |
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| Keywords: | optical fiber hydrophone acoustic pressure sensitivity temperature compensation |
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