| 相移光纤光栅对超声波信号的频率响应特性研究 |
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| 引用本文： | 彭敏,张学智,江俊峰,刘琨,陈冠龙,孙浩楠,李泽宇,刘铁根.相移光纤光栅对超声波信号的频率响应特性研究[J].光电子．激光,2021,32(12):1329-1337. |
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| 作者姓名： | 彭敏 张学智 江俊峰 刘琨 陈冠龙 孙浩楠 李泽宇 刘铁根 |
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| 作者单位： | 天津大学精密仪器与光电子工程学院光电信息技术教育部重点实验室天津大学光纤传感研究所,天津30072 |
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| 基金项目： | 国家自然科学基金(U1833104、61735011和61675152)资助项目 (天津大学 精密仪器与光电子工程学院 光电信息技术教育部重点实验室 天津大学光纤传感研究所,天津30072) |
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| 摘 要： | 为实现利用相移光纤Bragg光栅(phase-shifted fiber Bragg grating, PS-FBG)代替压电陶瓷(piezoelectric ceramics, PZT)进行结构损伤检测,本文研究 了PS-FBG对 100 kHz—1.5 MHz范围内的超声波信号的频率 响应特性。搭建了超声波激励信号的产生平台和高灵敏度光 纤光栅平衡传感系统,利用幅度分析法对连续超声波激励下的传感器响应信号进行分析。由 于薄板存在共 振频率的问题,使用时间长度为0.5 ms的突发型激励信号,并用能量 分析法评估传感器的响应情况。 实验 结果表明,PS-FBG传感器的频率响应在±3.49 dB范围内,由此可得 PS-FBG传感器对100 kHz—1.5 MHz范围内的 超声波信号具有宽谱响应的特性。
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| 关 键 词： | 损伤检测 相移光纤Bragg光栅(phase-shifted fiber Bragg grating PS-FBG) 超声波信号 频率响应 |
| 收稿时间： | 2021/5/12 0:00:00 |
Research on the frequency response characteristics of phase-shifted fiber grati ng to ultrasonic signal |
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| PENG Ming,ZHANG Xuezhi,JIANG Junfeng,LIU Kun,CHEN Guanlong,SUN Haonan,LI Zeyu and LIU Tiegen.Research on the frequency response characteristics of phase-shifted fiber grati ng to ultrasonic signal[J].Journal of Optoelectronics·laser,2021,32(12):1329-1337. |
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| Authors: | PENG Ming ZHANG Xuezhi JIANG Junfeng LIU Kun CHEN Guanlong SUN Haonan LI Zeyu and LIU Tiegen |
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| Affiliation: | Key Laboratory of Optoelectronic Information Technology,Ministry of Education, Institute of Optical Fiber Sensing,School of Precision Instruments and Optoel ectronics Engineering,Tianjin University,Tianjin 300072,China,Key Laboratory of Optoelectronic Information Technology,Ministry of Education, Institute of Optical Fiber Sensing,School of Precision Instruments and Optoel ectronics Engineering,Tianjin University,Tianjin 300072,China,Key Laboratory of Optoelectronic Information Technology,Ministry of Education, Institute of Optical Fiber Sensing,School of Precision Instruments and Optoel ectronics Engineering,Tianjin University,Tianjin 300072,China,Key Laboratory of Optoelectronic Information Technology,Ministry of Education, Institute of Optical Fiber Sensing,School of Precision Instruments and Optoel ectronics Engineering,Tianjin University,Tianjin 300072,China,Key Laboratory of Optoelectronic Information Technology,Ministry of Education, Institute of Optical Fiber Sensing,School of Precision Instruments and Optoel ectronics Engineering,Tianjin University,Tianjin 300072,China,Key Laboratory of Optoelectronic Information Technology,Ministry of Education, Institute of Optical Fiber Sensing,School of Precision Instruments and Optoel ectronics Engineering,Tianjin University,Tianjin 300072,China,Key Laboratory of Optoelectronic Information Technology,Ministry of Education, Institute of Optical Fiber Sensing,School of Precision Instruments and Optoel ectronics Engineering,Tianjin University,Tianjin 300072,China and Key Laboratory of Optoelectronic Information Technology,Ministry of Education, Institute of Optical Fiber Sensing,School of Precision Instruments and Optoel ectronics Engineering,Tianjin University,Tianjin 300072,China |
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| Abstract: | |
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| Keywords: | damage detection phase-shifted fiber Bragg grating(PS-FBG) ultrasonic signal frequency response |
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