探测型多核光纤传感器用于同时测量海水的盐度,压力和温度
Chengcheng Feng1, Hao Niu2, Hongye Wang1
1Key Laboratory of In-Fiber Integrated Optics of Ministry of Education, College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin 150001, China.
Sensors (Basel, Switzerland)
|March 28, 2024
概括
这项研究引入了一种新的多核纤维 (MCF) 传感器,用于同时测量海水的盐度,压力和温度. 集成的传感器利用表面等离子体共振,法布里 - 佩罗干扰和纤维布拉格格道,以获得准确,无交叉声音的结果.
科学领域:
- 光电学是指光电子产品.
- 光纤传感传感器是指光纤传感器.
- 环境监测 环境监测
背景情况:
- 精确的海水多参数测量对于海洋学研究和环境监测至关重要.
- 现有的传感器经常面临道交叉和复杂信号解调的挑战.
- 开发集成的,高性能传感器对于推进海洋科学至关重要.
研究的目的:
- 提出和演示一种新的探针型多核纤维 (MCF) 传感器,用于同时测量海水的盐度,压力和温度.
- 克服传统的多参数传感器的局限性,例如通道交叉和信号调制困难.
- 提供高度集成且易于调节的光纤传感器解决方案.
主要方法:
- 使用一个MCF和两个毛细管光纤 (COF) 具有不同的内部直径的探头类型传感器的制造.
- 整合了一个45°对称的核心反射 (SCR) 结构和一个类似阶梯的内部直径毛细血管 (SIDC) 结构,填充了聚二甲基西洛 (PDMS).
- 使用三种传感通道:盐度的表面等离子体共振 (SPR),压力和温度的法布里-佩罗干扰 (FPI) 和温度补偿的纤维布拉格格 (FBG),结合空间分割复杂化 (SDM).
主要成果:
- 该SPR通道显示盐度的灵敏度为0.36nm/.
- 对于压力,FPI通道的灵敏度为-10.62 nm/MPa,对于温度,灵敏度为-0.19 nm/°C.
- FBG通道提供温度补偿,确保准确的多参数测量,没有显著的通道交叉声.
结论:
- 开发的探头型MCF传感器成功实现了高灵敏度和精度的海水多参数测量.
- 传感器的集成设计和SDM技术有效地解决了交叉通话和调制挑战.
- 这种传感器可以作为未来开发用于海洋应用的先进多参数光纤传感器的宝贵参考.
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