一种基于微泡结构的具有高灵敏度和低成本特性的法布里-珀罗光纤应变传感器。
A Micro Bubble Structure Based Fabry-Perot Optical Fiber Strain Sensor with High Sensitivity and Low-Cost Characteristics.
作者信息
Yan Lu, Gui Zhiguo, Wang Guanjun, An Yongquan, Gu Jinyu, Zhang Meiqin, Liu Xinglin, Wang Zhibin, Wang Gao, Jia Pinggang
机构信息
School of Information and Communication Engineering, North University of China, Taiyuan 030051, China.
School of Instrument and Electronics, North University of China, Taiyuan 030051, China.
出版信息
Sensors (Basel). 2017 Mar 9;17(3):555. doi: 10.3390/s17030555.
A high-sensitivity, low-cost, ultrathin, hollow fiber micro bubble structure was proposed; such a bubble can be used to develop a high-sensitivity strain sensor based on a Fabry-Perot interferometer (FPI). The micro bubble is fabricated at the fiber tip by splicing a glass tube to a single mode fiber (SMF) and then the glass tube is filled with gas in order to expand and form a micro bubble. The sensitivity of the strain sensor with a cavity length of about 155 μm and a bubble wall thickness of about 6 μm was measured to be up to 8.14 pm/μϵ.
提出了一种高灵敏度、低成本、超薄的中空光纤微泡结构；这种微泡可用于开发基于法布里-珀罗干涉仪（FPI）的高灵敏度应变传感器。通过将玻璃管与单模光纤（SMF）拼接，在光纤尖端制造微泡，然后向玻璃管中填充气体以使其膨胀并形成微泡。测量了腔长约为155μm、泡壁厚度约为6μm的应变传感器的灵敏度高达8.14pm/με。
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