Polymer-optical-fiber-based sensor system for simultaneous measurement of angle and temperature

Leal-Junior Arnaldo; Frizera Anselmo; Marques Carlos; Pontes Maria Jose

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Polymer-optical-fiber-based sensor system for simultaneous measurement of angle and temperature

机译：基于聚合物光纤的传感器系统，用于同时测量角度和温度

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This paper presents a polymer-optical-fiber (POF)-based sensor system for simultaneous measurement of angle and temperature. The main contribution is obtaining a sensor with higher temperature sensitivity and lower hysteresis on the angle measurements. The annealing was made on the fibers under the conditions of low relative humidity and under water, and a third set of samples without any heat treatment was applied for comparison with the annealed ones. Results of temperature and angle characterization show that the fibers annealed under water presented higher temperature sensitivity and lower errors when compared with the fibers annealed with low humidity or the fibers without annealing. Furthermore, the fibers annealed under water also presented lower hysteresis on the angle characterization. For these reasons, such fibers were employed for the temperature and angle measurements, which results in a sensor system capable of simultaneously measuring the angle and temperature with root-mean-squared error of 0.82 degrees C for temperature and 2.20 degrees for angle, which is further reduced to 1.20 degrees after the application of a dynamic compensation technique for POF curvature sensors. (C) 2018 Optical Society of America.

机译：本文介绍了一种聚合物 - 光纤（POF）的传感器系统，用于同时测量角度和温度。主要贡献是获得具有较高温度敏感性和较低角度测量滞后的传感器。在低相对湿度和水下的纤维上对纤维制成的退火，并且应用没有任何热处理的三组样品用于与退火物相比。温度和角度表征的结果表明，与在不退火的纤维或纤维的纤维相比，在水下退火的纤维呈现较高的温度敏感性和更低的误差。此外，在水下退火的纤维也呈现较低的角度表征滞后。由于这些原因，这种纤维用于温度和角度测量，这导致传感器系统，能够同时测量具有0.82℃的根平均平方误差的角度和温度，为角度为2.20度，这是在应用POF曲率传感器的动态补偿技术之后进一步减少到1.20度。（c）2018年光学学会。

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来源
《Applied optics》 |2018年第7期|共7页
作者
Leal-Junior Arnaldo; Frizera Anselmo; Marques Carlos; Pontes Maria Jose;
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Univ Fed Espirito Santo Grad Program Elect Engn Vitoria Brazil;

Univ Fed Espirito Santo Grad Program Elect Engn Vitoria Brazil;

Univ Aveiro Inst Telecomunicacoes Aveiro Portugal;

Univ Fed Espirito Santo Grad Program Elect Engn Vitoria Brazil;

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Polymer-optical-fiber-based sensor system for simultaneous measurement of angle and temperature

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