温度补偿的海洋压力传感器基于通过波长调节的双重Fabry-Perot干扰仪
Optics express
|August 13, 2025
概括
这项研究引入了一种双光纤压力传感器,通过补偿温度变化,即使在极端的海洋环境中也能准确测量压力. 新型传感器设计确保了动态压力监测的高精度和稳定性.
科学领域:
- 光电学是指光电子产品.
- 传感器技术 传感器技术
- 环境监测 环境监测
背景情况:
- 精确的压力测量对于各种应用至关重要,特别是在像深海这样的恶劣环境中.
- 现有的传感器经常与温度诱导的错误作斗争,限制了它们的精度和可靠性.
- 光纤传感器在遥感和对电磁干扰的免疫方面具有优势.
研究的目的:
- 提出并演示一台具有集成温度补偿的双重Fabry-Perot干扰度光纤压力传感器.
- 为了在极端的海洋环境中实现高精度的动态压力测量.
- 为了分离压力和温度对传感器性能的影响.
主要方法:
- 整合两个法布里-佩罗传感器在一个专门的封装中,以创建不同的压力和温度腔.
- 使用多极度追踪算法来检测压力和温度变化的光谱数据的空洞长度解调.
- 基于单个传感器温度响应的温度补偿和错误校正算法的应用.
主要成果:
- 传感器系统在20°C时在0MPa-10MPa范围内实现了8.627nm/MPa的压力灵敏度.
- 非线性和可重复性误差是最小的,相当于最大压力偏差分别为5.085Pa和25.369Pa.
- 单个传感器的温度灵敏度为0.1848nm/°C和0.2575nm/°C,可以有效补偿.
结论:
- 双重Fabry-Perot光纤传感器有效补偿温度变化,提高压力测量精度.
- 该系统表现出极好的线性,稳定性和准确性,使其适合在具有挑战性的条件下进行动态压力测量.
- 这项技术在极端海洋环境和其他苛刻领域的应用中具有显著的潜力.
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