• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Optical fiber technology >Sensitivity-enhanced fiber strain sensing system based on microwave frequency scanning with the Vernier effect
【24h】

Sensitivity-enhanced fiber strain sensing system based on microwave frequency scanning with the Vernier effect

机译：基于带游标效应的微波频率扫描的灵敏度增强型光纤应变传感系统

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

A sensitivity enhanced fiber-optic strain sensing system based on microwave frequency scanning is proposed and experimentally demonstrated. The strain sensor consists of two cascaded fiber rings which are composed of just standard single-mode fibers. Since the two fiber rings are set to have almost same free spectra ranges, Vernier effect is generated in the transmission spectrum. The experimental results show that the strain sensitivity has been improved over 20 times higher than that of a single fiber ring. Moreover, owing to the high speed and small frequency resolution of the microwave frequency scanning in our system, micro-strain can be fast detected within several milliseconds with nano-strain resolution, which is hard for using a traditional grating-based optical spectrum analyzer.
机译：提出了一种基于微波频率扫描的灵敏度增强型光纤应变传感系统，并进行了实验验证。应变传感器由两个仅由标准单模光纤组成的级联光纤环组成。由于将两个光纤环设置为具有几乎相同的自由光谱范围，因此在透射光谱中会产生游标效应。实验结果表明，应变灵敏度已比单光纤环提高了20倍以上。此外，由于我们系统中微波频率扫描的高速和小频率分辨率，可以在几毫秒内以纳米应变分辨率快速检测微应变，这对于使用传统的基于光栅的光谱分析仪来说是很难的。

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