【24h】

Using FBG sensor array to monitoring structural security

机译:使用FBG传感器阵列监控结构安全

获取原文
获取原文并翻译 | 示例

摘要

A method based on FBG sensor array to monitoring large structure's security state is described. A configuration combing a fiber Fabry-Perot tunable filter and a fiber Fabry-Perot interferometer is used to interrogate FBG sensors. The strain signal and acceleration signal can be obtained from the some one FBG sensor, and the number of DFB sensors is reduced to half. The fiber Fabry-Perot tunable filter-based system has the capability to interrogate large number of DFB sensors, whilst obtaining absolute Bragg wavelength with pm resolution. A demonstration system with 4 DFB sensors is presented, which obtains DFB sensor's direct strain value and achieves sub-microstrain resolution at 300Hz interrogating rate. With fast interrogate rate, wide band acceleration signal can also be achieved.
机译:描述了一种基于FBG传感器阵列的大型结构安全状态监测方法。结合光纤Fabry-Perot可调滤波器和光纤Fabry-Perot干涉仪的配置用于询问FBG传感器。可以从多个FBG传感器获得应变信号和加速度信号,并且DFB传感器的数量减少到一半。基于光纤Fabry-Perot可调滤波器的系统具有询问大量DFB传感器的能力,同时可以获得具有pm分辨率的绝对布拉格波长。提出了一个具有4个DFB传感器的演示系统,该系统获得DFB传感器的直接应变值,并以300Hz的询问速率实现亚微应变分辨率。通过快速的询问速率,也可以实现宽带加速信号。

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