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| 光纤光栅水听器技术实验研究 | |
| 引用本文： | 刘波,曹晔,罗建花,牛文成,开桂云,张伟刚,董孝义.光纤光栅水听器技术实验研究[J].光子学报,2005,34(5):686-689. |
| 作者姓名： | 刘波 曹晔 罗建花 牛文成 开桂云 张伟刚 董孝义 |
| 作者单位： | 1. 南开大学信息技术科学学院,天津,300071;南开大学现代光学所,天津,300071 2. 南开大学现代光学所,天津,300071 3. 南开大学信息技术科学学院,天津,300071 |
| 基金项目： | 国家 863计划(2002A313110)，天津市科技重大攻关项目，南开大学创新科技基金资助 |
| 摘 要： | 采用光纤布喇格光栅作为基本传感器件, 设计制作了光纤光栅水听器. 利用匹配光纤光栅解调技术, 实现了高灵敏度、高速度的动态信号测量, 并进行了相关的水下声音测量实验. 实验系统可测量水声信号频率范围为10 Hz~3 kHz, 测量动态范围为60 dB, 其结果具有很高的线性度. |
| 关 键 词： | 光传感 光纤光栅 水听器 传感 匹配滤波 |
| 收稿时间： | 2004-04-05 |
| 修稿时间： | 2004年4月5日 |
Researching on the Experiment of Fiber Bragg Grating Hydrophone |
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| Liu Bo,CAO Ye,Luo Jianhua,NIU Wencheng,Kai Guiyun,ZHANG Weigang,Dong Xiaoyi.Researching on the Experiment of Fiber Bragg Grating Hydrophone[J].Acta Photonica Sinica,2005,34(5):686-689. | |
| Authors: | Liu Bo CAO Ye Luo Jianhua NIU Wencheng Kai Guiyun ZHANG Weigang Dong Xiaoyi |
| Institution: | (1 College of Information Technology and Science, Nankai University, Tianjin 300071) (2 Institute of Modern Optics, Nankai University, Tianjin 300071) |
| Abstract: | The FBG being used as the basic sensor unit, a hydrophone sensor has been designed and manufactured. Its principle and relevant experimental result are introduced. By using the matched fiber grating demodulation technique, dynamic signal measurement with high sensitivity is realized. The frequency range of the FBG-based hydrophone is 10~3 kHz with a dynamic range of 60 dB. Due to the characters of FBG itself, the measure of multiple-points underwater signal can be realized conveniently by using WDM and TDM techniques. |
| Keywords: | Fiber sensor FBG Hydrophone Sensor Mach filter |
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