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Damage sensing in a self-healing material using fibre Bragg grating sensors

机译:使用光纤布拉格光栅传感器感测自修复材料中的损伤

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We report on the localisation of an impact event on a carbon fibre composite plate using three surface-mounted fibre Bragg grating (FBG) sensors to monitor ultrasonic Lamb waves. We combine a novel wavelength-intensity conversion technique that allows fast-sampling of the FBGs, and an algorithm for localising an impact on an orthotropic plate. We are capable of locating the impact to a precision of a few millimetres. To our knowledge, this is the first time this combination has been developed, which could find applications for combined health monitoring and impact localisation.
机译:我们报告了使用三个表面安装的光纤布拉格光栅(FBG)传感器来监视超声波兰姆波的碳纤维复合板上撞击事件的定位。我们结合了允许快速采样FBG的新型波长-强度转换技术和用于定位对正交各向异性板的影响的算法。我们能够将冲击定位到几毫米的精度。据我们所知,这是第一次开发此组合,它可以找到用于组合健康监控和影响定位的应用程序。

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