太原理工大学学报

2019, v.50;No.225(05) 667-672

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基于FLRDS的双路复用微位移传感系统设计
Design of Dual Multiplexed Micro-displacement Sensing System Based on FLRDS

潘丽鹏;林洪太;邓霄;宋志强;张丽;崔丽琴;
PAN Lipeng;LIN Hongtai;DENG Xiao;SONG Zhiqiang;ZHANG Li;CUI Liqin;College of Physics and Optoelectronics,Taiyuan University of Technology;Key Laboratory of Advanced Transducers and Intelligent Control System of Ministry of Education,Taiyuan University of Technology;

摘要(Abstract):

针对目前光纤环形腔衰荡光谱技术多用于测量单一通道或者单一物理量的问题,依据双通道同步检测的思想,在传感系统中结合延迟线方法,搭建了基于光纤环形腔衰荡光谱技术的双路复用微位移传感系统,并对其重复性、灵敏度、复用性等特性进行了实验研究。结果表明:该系统可在双通道条件下分别实现0~10位移测量,且在未发生位移时两路传感器的重复性测试结果分别为(0.950 080 6±0.001 151)μs~(-1)和(0.953 523±0.001 757)μs~(-1);当两路传感分别产生6 mm和5 mm的位移时,重复性测试参数变化为(0.955 884±0.001 966 4)μs~(-1)和(0.959 957±0.002 013)μs~(-1);双路传感器的灵敏度分别为(1.07×10~(-3)±7.337×10~(-5))μs~(-1)·mm~(-1)和(1.00×10~(-3)±4.130×10~(-5))μs~(-1)·mm~(-1).经实验验证,双路传感器的相对误差分别为2.1%,4.0%,可为实现多参数同步检测提供一种有效的途径和方法。
In order to measure the single channel or the single physical quantity of the fiber loop ring-down spectroscopy, the idea of dual-channel synchronous detection was combined with the delay line method to design the dual multiplexed micro-displacement sensing system based on fiber loop ring-down spectroscopy technology. The characteristics including repeatability, reusability and sensitivity were studied experimentally. The experimental results show that the system realized 0~10 mm displacement measurement under dual channel respectively. The repeatability test results of two sensors without displacement were(0.950 080 6±0.001 151) μs~(-1) and(0.953 523±0.001 757) μs~(-1) separetely. When two sensors produced 6 mm and 5 mm displacements, the repeatability test parameters changed to(0.955 884±0.001 966 4) μs~(-1) and(0.959 957±0.002 013) μs~(-1), respectively; The sensitivity values of the dual sensors were(1.07×10~(-3)±7.337×10~(-5)) μs~(-1)·mm~(-1) and(1.00×10~(-3)±4.130×10~(-5)) μs~(-1)·mm~(-1); the relative error of the two sensors were 2.1% and 4.0%. The experimental results indicate that this research can provide an effective way to implement multi-parameter synchronous detection.

关键词(KeyWords): 光纤环形腔衰荡光谱技术;双路复用;微位移;多参数;同步检测
fiber loop ring-down spectroscopy;dual multiplexed;micro-displacement;multi-parameter;synchronous detection

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(51641904,51809190);; 山西省青年科技研究基金资助项目(2015021097);; 国家留学基金资助项目(201508140062);; 山西省研究生教育创新项目(2018SY020)

作者(Author): 潘丽鹏;林洪太;邓霄;宋志强;张丽;崔丽琴;
PAN Lipeng;LIN Hongtai;DENG Xiao;SONG Zhiqiang;ZHANG Li;CUI Liqin;College of Physics and Optoelectronics,Taiyuan University of Technology;Key Laboratory of Advanced Transducers and Intelligent Control System of Ministry of Education,Taiyuan University of Technology;

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