材料科学
磁流体
多模光纤
光学
灵敏度(控制系统)
光纤传感器
逐渐变细
光纤
温度测量
单模光纤
纤维
偏移量(计算机科学)
渐变折射率纤维
磁场
光电子学
物理
电子工程
工程类
程序设计语言
计算机科学
复合材料
计算机图形学(图像)
量子力学
作者
Shaoxiang Duan,Bo Liu,Hao Zhang,Haifeng Liu,Wei Lin,Jixuan Wu,Binbin Song
出处
期刊:Applied Optics
[Optica Publishing Group]
日期:2021-11-30
卷期号:60 (34): 10743-10743
被引量:1
摘要
In this study, a high-sensitivity intensity-interrogated fiber sensor integrated with ferrofluids is proposed for the measurement of a weak magnetic field (MF) with resolved temperature cross-sensitivity. The MF sensor is fabricated simply by an offset tapering single-mode fiber concatenated with a multimode fiber (MMF), which is then encapsulated into a capillary tube filled with ferrofluids. In the presence of MMF, stronger mode coupling could be achieved over the S-tapered fiber region. Its spectral response to variations in the applied MF intensity and ambient temperature have been investigated in detail. The proposed sensor shows a high MF sensitivity up to -0.1130dB/Oe for the measurement range of 40 to 120 Oe, which, to our best knowledge, is higher than other previously reported MF sensors. And moreover, the measurement errors caused by temperature cross-sensitivity have been corrected by using a sensing matrix for the temperature range of 25°C to 35°C. Our proposed MF sensor possesses the advantages of high sensitivity, low cost, and applicability for applications in weak MF measurements.
科研通智能强力驱动
Strongly Powered by AbleSci AI