船体
压力传感器
灵敏度(控制系统)
补偿(心理学)
声学
光学
材料科学
压力测量
光纤传感器
温度测量
光纤
度量(数据仓库)
环境科学
电子工程
机械工程
工程类
计算机科学
物理
复合材料
心理学
量子力学
数据库
精神分析
作者
Gang Xu,Bo He,Hongli Liu,Xin Gui,Zhengying Li
出处
期刊:Optics Express
[The Optical Society]
日期:2022-05-31
卷期号:30 (12): 21396-21396
被引量:7
摘要
In order to realize the multi-point load measurement of ship hull during wave experiments, an FBG pressure sensor was developed to monitor ship bottom liquid level. The principle is to measure the responses of optical fiber sensing units caused by hydraulic pressure. By utilizing a designed steel diamond structure and reasonable selected material, the sensor realized the temperature self-compensation function of a single FBG. The theoretical models and experimental methods are analyzed in detail. Lots of sensing tests showed that, the sensor had a sensitivity of 58.94 pm/kPa and a precision of 1.7 Pa. The temperature sensitivity was only 2.7 pm/°C, which basically achieved the effect of temperature self-compensated. Finally, 15 sensors were installed at the bottom of the hull and a series of wave load experiments were carried out, which further showed that the pressure sensor had good measuring ability and wide application prospect.
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