当前位置: X-MOL 学术IEEE Sens. J. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
A Study on MoS₂ Nanolayer Coated Etched Fiber Bragg Grating Strain Sensor
IEEE Sensors Journal ( IF 4.3 ) Pub Date : 2021-01-25 , DOI: 10.1109/jsen.2021.3054473
S. Sridhar , Suneetha Sebastian , Ajay K. Sood , Sundarrajan Asokan

In this paper, we report on the comprehensive study on Molybdenum disulfide (MoS 2 ) nanolayer coated etched Fiber Bragg Grating (eFBG) strain sensor. MoS 2 nanolayer is coated using Physical Vapor Deposition (PVD) of Molybdenum (Mo) on eFBGs followed by sulfurization of the same in an inert atmosphere at 450° C. Such coating technique provides a direct control over the coating thickness of MoS 2 , thereby enabling a study based on the effect of nanolayer coating thickness on the intrinsic strain sensitivity as well as the power of the back reflected Bragg wavelength of eFBG in the 0.78eV spectral region. High uniformity of MoS 2 nanolayer coating ensures consistent, repeatable and highly linear FBG strain sensors with a correlation coefficient of 0.988 in the range of 0 to $2500~\mu \varepsilon $ . A maximum intrinsic strain sensitivity of ~6.65 pm/ $\mu \varepsilon $ with a resolution of $\sim 150~\text{n}\varepsilon $ have been achieved with optimized MoS 2 coated eFBG sensors. This kind of consistent, highly sensitive and linear strain sensors when incorporated with proper packaging schemes can be particularly useful for applications demanding high sensitivity of FBG sensors such detection of seismic vibrations, underwater acoustic signals, low amplitude accelerations, etc.

中文翻译:

MoS 2纳米层涂层刻蚀光纤布拉格光栅应变传感器的研究

在本文中,我们报告了对二硫化钼(MoS 2 )纳米层涂层蚀刻的光纤布拉格光栅(eFBG)应变传感器的综合研究 。使用eFBG上的钼(Mo)进行物理气相沉积(PVD),然后在450°C的惰性气氛中将其硫化,从而涂覆MoS 2纳米层。这种涂覆技术提供了对MoS 2涂层厚度的直接控制 ,从而能够基于纳米层涂层厚度对固有应变敏感性以及eFBG在0.78eV光谱区域的背向反射布拉格波长的功率的影响进行研究。MoS 2的高度均匀性 纳米层涂层可确保一致,可重复且高度线性的FBG应变传感器,相关系数为0.988,范围为0至 $ 2500〜\ mu \ varepsilon $ 。最大固有应变灵敏度为〜6.65 pm / $ \ mu \ varepsilon $ 分辨率为 $ \ sim 150〜\ text {n} \ varepsilon $ 优化的MoS 2涂层eFBG传感器已经实现了这一目标 。当与适当的包装方案结合使用时,这种一致,高度灵敏和线性的应变传感器对于要求FBG传感器具有高灵敏度的应用特别有用,例如地震振动,水下声信号,低振幅加速度的检测等。
更新日期:2021-03-05
down
wechat
bug