高应变状态下钎焊金属和环氧纤维布拉格光栅应变传感器的比较

2017 25th Optical Fiber Sensors Conference (OFS) Pub Date : 2017-04-23 DOI:10.1117/12.2264997

I. Mckeeman, P. Niewczas, S. Khan

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引用次数: 1

摘要

测试了三种不同的光纤光栅应变传感器对高应变测量的适用性。传感器类型有:裸环氧化光纤布拉格光栅，环氧化成金属毛细管的标准光纤布拉格光栅，最后是钎焊成金属毛细管的金属涂层光纤布拉格光栅。传感器在高达1400MPa(相当于7.3 mm ε)的钢试样上进行校准。结果表明，裸环氧布拉格光栅和金属封装光栅均适用于该水平应变的测量。

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A comparison of brazed metal and epoxied fibre Bragg grating strain sensors under high strain regimes

Three different fibre Bragg grating strain sensors were tested for their suitability for measuring high strain. The sensor types were: a bare epoxied fibre Bragg grating, a standard fibre Bragg grating epoxied into a metal capillary and, finally, a metal coated fibre Bragg grating brazed into a metal capillary. The sensors were calibrated on a steel specimen up to 1400MPa (equivalent to 7.3mε). The results show that the bare epoxied Bragg grating and the metal packaged grating are suitable for measuring strains of this level.

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2017 25th Optical Fiber Sensors Conference (OFS)

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