光纤Bragg光栅对纵向超声场的高频相位响应分析:探讨新的询问策略

Proceedings of 2005 IEEE/LEOS Workshop on Fibres and Optical Passive Components, 2005. Pub Date : 2005-06-22 DOI:10.1142/9789812833532_0096

V. Italia, A. Cusano, S. Campopiano, A. Cutolo, M. Giordano

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引用次数: 6

摘要

本文研究了光纤布拉格光栅在纵向超声场作用下的相位响应特性。数值结果表明，光纤光栅相位响应和时间延迟对高频低幅态的美国波具有很高的灵敏度。讨论了基于时间延迟测量的新型问讯策略对光纤光栅传感器作为高频超声探测器的传感能力的扩展潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Analysis of the phase response of fiber Bragg gratings to longitudinal ultrasonic fiields in the high frequency regime: towards new interrogation strategies

In this work the behaviour of a fiber Bragg grating (FBGs) phase response subjected to longitudinal ultrasonic (US) field has been investigated. Numerical results reveal high sensitivity of the FBG phase response and thus of the time delay to US waves in the high frequency and low amplitude regime. The potentialities to extend the sensing capability of FBG sensors as high frequency ultrasonic detectors are discussed with regard to new interrogation strategies based on time delay measurements.

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Proceedings of 2005 IEEE/LEOS Workshop on Fibres and Optical Passive Components, 2005.

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