抛弃式光纤温深仪系统设计与实现  

Design of expendable fiber Bragg grating bathythermograph system

作　　者：吕国涛[1] 徐海东[1] 龙永进 娄凯 LYU Guotao;XU Haidong;LONG Yongjin;LOU Kai(Shanghai Acoustic Laboratory,Institute of Acoustics,Chinese Academy of Science,Shanghai 201815,China;Shanghai Marine Electronic Equipment Research Institute,Shanghai 201108,China)

机构地区：[1]中国科学院声学研究所东海研究站,上海201815 [2]中船集团第七二六研究所,上海201108

出　　处：《声学技术》2021年第6期775-779,共5页Technical Acoustics

基　　金：中国科学院声学研究所青年英才计划项目(QNYC201712)。

摘　　要：海水温度梯度是海洋调查、海洋研究的重要参数,抛弃式温度剖面测量系统(Expendable Bathy Thermograph,XBT)是一种可在测量船走航状态下进行海洋温度剖面测量的仪器,具有实时、快速和低成本的特点。传统XBT通常不使用深度传感器,而是根据探头入水时间利用经验公式推算所处深度,深度误差较大。文章介绍了抛弃式光纤温深仪系统的原理、设计与实现,对研制的样机和探头进行了测试和数据分析,实现了对温度、深度的实时快速直接测量,测量误差较小,为以后抛弃式光纤温深仪系统的深入研究提供了参考依据。Sea water temperature gradient is an important parameter in oceanographic survey and research.Expendable bathy thermograph(XBT)is a measuring instrument of ocean temperature profile under the sailing state of ship with real-time,fast and low-cost features.XBT usually does not use the depth sensor,but uses an empirical formula to cal-culate the probe depth according to water intake time of the probe,so the depth error is large.In this paper,the principle,design and implementation of the expendable fiber Bragg grating bathythermograph system are introduced.A prototype of the system is developed and tested,and the gathered measurement data are analyzed.The results show that this sys-tem provides a way of fast real-time measurement of temperature and depth with a small depth error,and provides a reference for the further research on XBT system.

关 键 词：光纤光栅传感器 实时温度补偿 结构设计 光纤绕制 

分 类 号：TB533[理学—物理]