Article
Engineering, Electrical & Electronic
Fei Li, Xue-gang Li, Xue Zhou, Ya-nan Zhang, Ri-qing Lv, Yong Zhao, Liu-shun Xie, Linh Viet Nguyen, Heike Ebendorff-Heidepriem, Stephen C. Warren-Smith
Summary: This paper demonstrates a novel platform for simultaneous measurement of relative humidity and temperature using dual Fabry-Perot interferometers based on C-shaped fiber. The sensor has a simple structure, excellent stability, and high sensitivity, and has a broad application prospect.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Engineering, Multidisciplinary
Ru-Lei Xia, Juan Liu, Jiulin Shi, Xing-Dao He, Jinhui Yuan, Andrew R. Pike, Liang Chu, Qiang Wu, Bin Liu
Summary: A fiber-optic Fabry-Perot-based humidity sensor using PNIPAM hydrogel to form a FP cavity was proposed and investigated. The sensor showed good sensitivity and repeatability, and could effectively monitor humidity with fast response and recovery.
Article
Chemistry, Analytical
Teng Zhang, Qun Han, Zhizhuang Liang, Junfeng Jiang, Zhenzhou Cheng
Summary: This paper proposes a fiber sensor based on the Vernier effect for simultaneous measurement of relative humidity (RH) and temperature. The sensor is fabricated by coating two types of UV glue with different refractive indexes (RI) and thicknesses on a fiber patch cord. The Vernier effect is formed through the analysis of the Fast Fourier Transform (FFT) of the reflective spectrum. By calibrating the RH and temperature response of the reflective spectrum, simultaneous measurements of RH and temperature are achieved.
Article
Engineering, Electrical & Electronic
Xiao Lu, Huaping Gong, Ye Lu, Yiting Liu, Changyu Shen, Chunliu Zhao
Summary: A relative humidity (RH) sensor based on optical fiber Fabry-Perot interferometer (FPI) with open cavity is proposed in this paper. The sensor is manufactured by cutting the fiber capillary (FC) with inclined end and splicing it with the flat end of another FC by overlapping method. Polyvinyl alcohol (PVA) film is coated on the flat end of one FC. Experimental results show that the proposed sensor has a sensitivity of about 0.70 nm/%RH within the range of 35% RH to 85% RH, with a cavity length of 180 μm, hole size of 45 μm, and film thickness of 15 μm. The proposed sensor exhibits high sensitivity, fast response time, and high stability.
OPTICAL FIBER TECHNOLOGY
(2023)
Article
Engineering, Electrical & Electronic
Min Shao, Bingkun Liu, Yanmei Wang, Yinggang Liu, Xueguang Qiao
Summary: An optical fiber humidity sensor based on BPQDs-PVA gel has been proposed, which shows great potential in accurately monitoring and controlling humidity due to its easy fabrication, low cost, good stability, and high sensitivity.
IEEE PHOTONICS TECHNOLOGY LETTERS
(2023)
Article
Optics
Monserrat Alonso-Murias, David Monzon-Hernandez, Enrique Antonio-Lopez, Axel Schulzgen, Rodrigo Amezcua-Correa, Joel Villatoro
Summary: A nano-displacement sensing method based on an extrinsic hybrid fiber Fabry-Perot interferometer is proposed, achieving a resolution of 0.47 nm. By adjusting the optical path length difference between the air cavity and glass cavity, an interference spectra envelope with a larger period can be generated.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Optics
Pei Wang, Chao Jiang, Hailin Chen, Xiping Zhu, Han Zhang, Yuan Wang, Simei Sun, Hong Li
Summary: This study fabricates and verifies a humidity sensor with high sensitivity using humidity sensitive material polyimide (PI) and optical Vernier effect. The sensor consists of two parallel Fabry-Perot interferometers (FPIs), one of which is particularly sensitive to humidity while the other is insensitive. The connection of the two interferometers generates Vernier effect, further amplifying the humidity sensitivity of the sensor.
Article
Engineering, Electrical & Electronic
Hailin Chen, Chao Jiang, Xiping Zhu, Xiaoshan Guo, Hong Li, Simei Sun
Summary: A parallel optical fiber Fabry-Perot interferometer and Vernier effect sensor for simultaneous high-sensitivity measurement of relative humidity and temperature is proposed and verified. By filling two Fabry-Perot cavities with different materials and connecting them in parallel, the sensor achieves simultaneous measurement of humidity and temperature through the Vernier effect.
IEEE SENSORS JOURNAL
(2022)
Article
Chemistry, Analytical
Yusong Zhong, Pengbai Xu, Jun Yang, Xinyong Dong
Summary: An optical fiber Fabry-Perot interferometer (FPI) is used for relative humidity measurement by coating a short hollow core fiber (HCF) with gelatin and fusion splicing it to a single-mode fiber. The gelatin film thickness changes with humidity, which modulates the FPI cavity length. The humidity measurement is achieved by measuring wavelength shift. The FPI-HCF sensor can also monitor temperature using a cascaded fiber Bragg grating with temperature sensitivity.
Article
Chemistry, Analytical
Zixian Hu, Yuxing Chen, Jingyu Tan, ZhengYu Yan, Zhenhua Weng, Meenakshi Gusain, Yiqiang Zhan, Limin Xiao
Summary: A hybrid self-growing polymer microtip for a fiber-tip FabryPerot interferometer was proposed and demonstrated, showing enhanced figure of merit. The resulting fiber-tip sensor achieved high sensitivity and fast response time, making it suitable for real-time human breath observation and potential applications in environmental and biological humidity sensing.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Engineering, Electrical & Electronic
Yanping Chen, Junxian Luo, Shen Liu, Mengqiang Zou, Shengzhen Lu, Yong Yang, Changrui Liao, Wenjie Feng, Yiping Wang
Summary: By reducing the material volume of the air cavity with asymmetrical tapered fiber and splicing/tapering the fiber at the misaligned center of the cavity, high-sensitive strain sensors are fabricated. Experimental results indicate that the asymmetrical tapered fiber leads to higher strain sensitivity, along with the advantages of repeatability, sensitivity, and compact size.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Article
Chemistry, Analytical
Simon Pevec, Janez Kunavar, Vedran Budinski, Matej Njegovec, Denis Donlagic
Summary: This paper presents a Fabry-Perot sensor-based measuring system that is used for measuring fluid composition in demanding industrial applications. The sensor design incorporates a two-parametric sensor, allowing for simultaneous measurement of temperature and refractive index (RI). The system has undergone testing under real industrial conditions, and has been proven effective for temperature-compensated online measurement of emulsion concentration with a high resolution of 0.03 Brix. The measuring system includes emulsion filtering and automatic sensor cleaning, which are crucial for successful implementation of a fiber optic RI sensor in emulsion monitoring applications.
Article
Engineering, Electrical & Electronic
Ben Xu, Yun Guo, Xingchao Ma, Yingfang Zhang, Chun-Liu Zhao, D. N. Wang
Summary: A tip Michelson interferometer (MI) is proposed and experimentally demonstrated for relative humidity (RH) sensing. The device consists of a short capillary tube with a small inner diameter that is spliced to a single-mode fiber (SMF) and coated with agarose gel on its end face, and the solid capillary wall and gel act as the sensing arm of the MI. The relationship between the structural parameters and the performance of the device is revealed, and the maximum sensitivity of 0.752 nm/% RH with a linear correlation coefficient of 0.9927 within the range of 25%-90% RH is obtained. The proposed sensor exhibits good performances of robustness, compact size, high repeatability, fast response (<100 ms), and small measurement uncertainty (<0.21% RH), making it promising for accurate static or dynamic moisture measuring.
IEEE SENSORS JOURNAL
(2023)
Article
Engineering, Electrical & Electronic
Changgui Yu, Huaping Gong, Zhaoxu Zhang, Kai Ni, Chunliu Zhao
Summary: The paper introduces a relative humidity (RH) sensor based on vernier effect of two parallel Fabry-Perot interferometers, using polyvinyl alcohol (PVA) as the humidity sensitive material. The sensor demonstrates high sensitivity of 1.78 nm/%RH in the range of 55%RH-85%RH, with stability at 45%RH and 75%RH and a quick response time of 12s between 55%RH and 75%RH. Additionally, it features low temperature disturbance, simple principle, and easy manufacturing process.
OPTICAL FIBER TECHNOLOGY
(2021)
Article
Engineering, Electrical & Electronic
Dajuan Lyu, Jiankun Peng, Qing Huang, Wei Zheng, Liangming Xiong, Minghong Yang
Summary: An optical fiber Fabry-Perot interferometer based on sapphire wafer is designed and fabricated for high-temperature sensing under Co-60 gamma irradiation. The sensor undergoes temperature cycle tests up to 800 degrees C and demonstrates excellent sensing performance at high temperature, with a high sensitivity of 29.9 pm/degrees C at 800 degrees C. This sensor has the potential to be applied under strong irradiation and high temperature environments.
IEEE SENSORS JOURNAL
(2021)
Article
Optics
Heng Wu, Tengpeng Sun, Jiankun Peng, Jixiang Dai, Minghong Yang
Article
Engineering, Electrical & Electronic
Niannian Li, Dejing Gong, Yinquan Yuan, Minghong Yang
IEEE SENSORS JOURNAL
(2020)
Article
Instruments & Instrumentation
Tianting Lai, Pu Cheng, Congliao Yan, Chi Li, Wenbin Hu, Minghong Yang
Article
Engineering, Multidisciplinary
Ben Xu, F. P. Zhao, D. N. Wang, Chun-Liu Zhao, Jianqing Li, Minghong Yang, Lingze Duan
MEASUREMENT SCIENCE AND TECHNOLOGY
(2020)
Article
Optics
Stefan Kefer, Jixiang Dai, Minghong Yang, Bernhard Schmauss, Ralf Hellmann
Article
Engineering, Electrical & Electronic
Farhan Mumtaz, Pu Cheng, Chi Li, Shu Cheng, Cheng Du, Minghong Yang, Yutang Dai, Wenbin Hu
IEEE SENSORS JOURNAL
(2020)
Article
Engineering, Electrical & Electronic
Pu Cheng, Minghong Yang, Wenbin Hu, Donglai Guo, Cheng Du, Xiaoqiao Luo, Farhan Mumtaz
OPTICAL FIBER TECHNOLOGY
(2020)
Correction
Optics
Stefan Kefer, Jixiang Dai, Minghong Yang, Bernhard Schmauss, Ralf Hellmann
Article
Chemistry, Physical
Zhuang Ye, Zhi Li, Jixiang Dai, Yuhuan Qin, Gaopeng Wang, Zihui Yuan, Minghong Yang
Summary: Fiber optic hydrogen gas sensors with low detection limit and high precision are in high demand. An improved self-referenced FBG hydrogen gas sensor design shows faster response and higher measurement stability, resulting in a significantly low detection limit down to 4.5 ppm in air. These advancements highlight its promising applications in the future.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Engineering, Electrical & Electronic
Chengli Li, Jianguan Tang, Yanshi Jiang, Cheng Cheng, Longbao Cai, Minghong Yang
IEEE PHOTONICS JOURNAL
(2020)
Editorial Material
Engineering, Electrical & Electronic
Minghong Yang, Elfed Lewis, Ignacio R. Matias
IEEE SENSORS JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Jixiang Dai, Yi Li, Hongbo Ruan, Zhuang Ye, Nianyao Chai, Xuewen Wang, Shuchang Qiu, Wei Bai, Minghong Yang
Summary: The paper focuses on the deposition of WO3-Pd2Pt-Pt nanocomposite films on a single mode fiber for hydrogen sensing, demonstrating quick response to 100 ppm hydrogen with high resolution. By optimizing the optical power at 5 mW, the system is able to detect hydrogen concentrations far below the explosion limit, showing great potential in hydrogen-related applications.
Review
Engineering, Electrical & Electronic
Gaopeng Wang, Jixiang Dai, Minghong Yang
Summary: Optical fiber hydrogen sensors have gained attention for their intrinsic safety features, with various types proposed over the past three decades. This review focuses on five representative types of hydrogen sensors based on Pd alloy or WO3 sensitive materials, critically examining their structures, characteristics, and sensing performances.
IEEE SENSORS JOURNAL
(2021)
Article
Engineering, Electrical & Electronic
Dajuan Lyu, Jiankun Peng, Qing Huang, Wei Zheng, Liangming Xiong, Minghong Yang
Summary: An optical fiber Fabry-Perot interferometer based on sapphire wafer is designed and fabricated for high-temperature sensing under Co-60 gamma irradiation. The sensor undergoes temperature cycle tests up to 800 degrees C and demonstrates excellent sensing performance at high temperature, with a high sensitivity of 29.9 pm/degrees C at 800 degrees C. This sensor has the potential to be applied under strong irradiation and high temperature environments.
IEEE SENSORS JOURNAL
(2021)
Article
Engineering, Electrical & Electronic
Weibing Gan, Niannian Li, Yinquan Yuan, Lei Liang, Minghong Yang
Summary: A mechanically stable and high-sensitivity optical glucose sensitive membrane (OGSM) was prepared by immobilizing glucose oxidases (GODs) onto a mixture of SiO2 mesocellular foams (SiMCFs) and nanoparticles (SiNPs) and embedding ImGODs in the composite gel of polyvinyl alcohol (PVA) and polyethylene glycol (PEG). The OGSM showed linear relationship between glucose volume fraction and concentration when the concentration was below 80 mg/dL, and followed the Langmuir isotherm model at concentrations between 80-200 mg/dL. The OGSMs also exhibited good biomechanical stability with Young's modulus values ranging from 0.573 MPa to 0.649 MPa.
IEEE SENSORS JOURNAL
(2021)
