• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Conference on Actual Issues of Mechanical Engineering >Registration of acoustic emission in composite material by fiber-optic sensors based on adaptive interferometer
【24h】

Registration of acoustic emission in composite material by fiber-optic sensors based on adaptive interferometer

机译：基于自适应干涉仪的光纤传感器对复合材料声发射的注册

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Paper presents the results of studying the features of recording acoustic emission waves recorded by fiber-optic sensors. Fiber-optic sensors are used as an elastic medium that receives acoustic emission waves. For this purpose, the optical fibers are embedded in the polymer composite material during the manufacturing of the sample. The measuring system is constructed on the basis of an adaptive interferometer. Optical fibers are part of the interferometer optical scheme. The elastic wave acting on an optical fiber changes its optical density, changing the interference pattern of the optical beam. The work of the interferometer is based on the adaptive change in the hologram, formed in the photorefractive crystal during the elastic action on the fiber. Sensitivity of fiber-optic sensors based on an adaptive interferometer allows recording acoustic emission waves. The Su-Nielsen source was used to generate the waves. The nature of the sensors, distributed in space and the anisotropy of the properties of the composite material, influenced the difference in the speed of sound in different directions and the dispersion of the velocity of the group Lamb wave. To form the signal front, the wavelet transformation was used.
机译：纸张介绍了研究光纤传感器记录记录声发射波的特征的结果。光纤传感器用作接收声发射波的弹性介质。为此目的，在制造样品期间，光纤嵌入聚合物复合材料中。测量系统基于自适应干涉仪构建。光纤是干涉仪光学方案的一部分。作用在光纤上的弹性波改变了其光学密度，改变了光束的干涉图案。干涉仪的工作基于全息图的自适应变化，在光纤上的弹性作用期间形成在光反射晶体中。基于自适应干涉仪的光纤传感器的敏感性允许记录声学发射波。 SU-NIELEN源用于产生波浪。传感器的性质，分布在空间和复合材料性质的各向异性，影响了不同方向的声速的差异以及组羔羊波的速度的分散。为了形成信号前，使用小波变换。

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