基于v型槽结构长周期光纤光栅的超灵敏应变传感器

IF 2.3 3区 工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC
Taian Yin;Xuelan He;Jing Yang;Yuan Jin;Yan Liu;Shan Gao;Peng Ye;Jinhui Shi;Libo Yuan;Chunying Guan
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引用次数: 0

摘要

提出了一种基于v型槽结构长周期光纤光栅(V-LPFG)的超灵敏应变传感器并进行了实验验证。利用CO2激光在标准单模光纤上刻蚀周期性v型槽结构,制备了V-LPFG。利用周期性v型凹槽,有效提高了LPFG的应变灵敏度。讨论了不同v型槽深度对V-LPFG应变敏感性的影响。实验结果表明,应变灵敏度可达-229.1 pm/ $\mu \varepsilon $。此外,测量了传感器的温度响应,温度灵敏度为80.18 pm/°C。其温度-应变交叉灵敏度低至- $0.35\mu \varepsilon $ /°C。所提出的超灵敏应变传感器具有成本低、体积小、制作简单、灵敏度高等优点,在工程健康监测和精密测量方面具有良好的应用前景。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Ultrasensitive Strain Sensor Based on V-Groove Structure Long-Period Fiber Grating
We propose and experimentally demonstrate an ultrasensitive strain sensor based on a V-groove structure long-period fiber grating (V-LPFG). The V-LPFG is fabricated by using CO2 laser to etch periodic V-groove structures on a standard single-mode fiber. Utilizing the periodic V-grooves, effectively enhancing the strain sensitivity of LPFG. The effect of different V-groove depths on the strain sensitivity of V-LPFG are discussed. The experiment results show that the sensitivity of strain is up to -229.1 pm/ $\mu \varepsilon $ . In addition, the temperature response of the sensor is measured and the temperature sensitivity is 80.18 pm/°C. Its temperature-strain cross-sensitivity is as low as - $0.35\mu \varepsilon $ /°C. The proposed ultrasensitive strain sensor has the good potential applications in engineering health monitoring and precision measurement due to its low cost, small size, simple fabrication, and high sensitivity.
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来源期刊
IEEE Photonics Technology Letters
IEEE Photonics Technology Letters 工程技术-工程:电子与电气
CiteScore
5.00
自引率
3.80%
发文量
404
审稿时长
2.0 months
期刊介绍: IEEE Photonics Technology Letters addresses all aspects of the IEEE Photonics Society Constitutional Field of Interest with emphasis on photonic/lightwave components and applications, laser physics and systems and laser/electro-optics technology. Examples of subject areas for the above areas of concentration are integrated optic and optoelectronic devices, high-power laser arrays (e.g. diode, CO2), free electron lasers, solid, state lasers, laser materials'' interactions and femtosecond laser techniques. The letters journal publishes engineering, applied physics and physics oriented papers. Emphasis is on rapid publication of timely manuscripts. A goal is to provide a focal point of quality engineering-oriented papers in the electro-optics field not found in other rapid-publication journals.
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