概括
这项研究引入了一种全光纤热线流量传感器,用于精确的空气和水中的低速度测量. 这种新型光纤传感器为工业应用提供了高灵敏度和稳健性.
科学领域:
- * 光子学和传感器技术
- *光纤光学和干涉测量技术
- * 流体动力学的测量
背景情况:
- * 传统的热线风力计在灵敏度和环境干扰方面存在局限性.
- * 测量空气和水中的极低流速需要高度敏感和强大的传感器技术.
- *小型化和全光学设计为增强的流量传感提供了潜在的解决方案.
研究的目的:
- * 提出和演示一个全光纤热线流量传感器.
- * 为了在空气和水中实现极低流速的高度灵敏的测量.
- * 为工业应用开发一个紧,坚固的流量计.
主要方法:
- * 制造热线维尔尼尔效应结构,使用完全嵌入光纤核心的秒激光器.
- * 整合两个Fabry-Perot干扰仪 (FPI) 在和单模纤维中.
- *通过测量热损失和相应的波长变化来检测流速.
主要成果:
- * 对于低速流量测量,已证明具有高灵敏度.
- * 在空气中达到0.55.98 m/s (18.35 nm最大转移) 和在水中达到0.050.92 cm/s (1.89 nm最大转移) 的测量范围.
- * 确认传感器对环境干扰的强度.
结论:
- * 全光纤热线流量传感器为准确的低流速测量提供了有希望的解决方案.
- *其紧的尺寸,高灵敏度和环境稳定性使其适用于苛刻的工业环境.
- *潜在的应用包括石油记录,石油和天然气运输以及碳捕获和储存 (CCS).
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