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Low cost non-adiabatic tapered fiber for high-sensitive temperature sensing

机译：用于高灵敏度温度传感的低成本非绝热锥形光纤

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摘要

A non-adiabatic tapered fiber sensor was fabricated, and its applications in refractive index (RI) and temperature sensing were investigated in both theory and experiment. The experiment results demonstrated that the tapered fiber sensor with a diameter of 8 mu m had RI sensitivity as high as 1800 nm/RIU and temperature sensitivity of about - 300 pm/degrees C. Then, taking advantage of its high refractive index sensitivity property, an improved temperature sensor structure was proposed by encapsulating it in a glass microtube and filling the microtube with high thermo-optical coefficient liquid. This improved sensor structure showed a higher temperature sensitivity of around - 900 pm/degrees C. The improved sensor structure is simple, low cost and easily fabricated. Besides, this temperature sensor has high sensitivity, good mechanical strength and strong anti-disturbance ability.
机译：制备了非绝热锥形光纤传感器，并从理论和实验两方面研究了其在折射率（RI）和温度传感中的应用。实验结果表明，直径为8μm的锥形光纤传感器的RI灵敏度高达1800 nm / RIU，温度灵敏度约为-300 pm /℃。然后，利用其高折射率灵敏度特性，通过将其封装在玻璃微管中并用高热光学系数的液体填充微管，提出了一种改进的温度传感器结构。这种改进的传感器结构显示出大约-900 pm /℃的更高的温度灵敏度。改进的传感器结构简单，成本低并且易于制造。此外，该温度传感器灵敏度高，机械强度好，抗干扰能力强。

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