• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Optical fiber technology >Enhanced sensitivity of distributed-temperature sensor with Al-coated fiber based on OFDR
【24h】

Enhanced sensitivity of distributed-temperature sensor with Al-coated fiber based on OFDR

机译：基于OFDR的镀铝纤维分布式温度传感器的灵敏度提高

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this paper, we present a distributed-optical fiber temperature sensor with enhanced sensitivity with Al coating using the Rayleigh backscattering (RBS) spectrum shift measured via optical frequency-domain reflectometry (OFDR). The Al-coated sensing fiber having a larger thermal expansion coefficient than that of silica produces a strain-coupled shift in the RBS under an increase in temperature. This effect leads to an enhanced temperature sensitivity of the distributed measurement scheme. In order to analyze the principle of temperature sensitivity enhancement, a simple analysis was performed by considering the fiber directional strain and force equilibrium between the optical fiber and Al-coated layer. Our results revealed that the temperature sensitivity achieved with the Al-coated fiber in OFDR was similar to 56% higher relative to that of a single-mode fiber.
机译：在本文中，我们提出了一种通过使用光学频域反射法（OFDR）测量的瑞利背向散射（RBS）光谱偏移，提高了Al涂层灵敏度的分布式光纤温度传感器。热膨胀系数比二氧化硅大的涂铝传感光纤在温度升高时会在RBS中产生应变耦合位移。这种影响导致分布式测量方案的温度敏感性增强。为了分析温度敏感性增强的原理，通过考虑光纤的定向应变和光纤与镀铝层之间的力平衡进行了简单分析。我们的结果表明，与单模光纤相比，在OFDR中用铝涂层光纤实现的温度灵敏度高出56％。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号