Article
Engineering, Electrical & Electronic
Yize Liu, Junfeng Jiang, Kun Liu, Shuang Wang, Panpan Niu, Danni Jiao, Tianhua Xu, Xuezhi Zhang, Tiegen Liu
Summary: We propose a fiber laser temperature sensor based on temperature dependence whisper gallery mode-based microcavity. By injecting three different thermo-optic coefficient liquids into a thin-wall thickness microtubule, different temperature sensitivities of whisper gallery mode shift are achieved. The sensor temperature sensitivity increases with the absolute value of the liquid core thermo-optic coefficient. The theoretical model of whisper gallery mode temperature response is analyzed. A liquid core microtubule is inserted into the erbium-doped fiber ring laser (FRL) cavity as the optical filter and sensing unit simultaneously, enabling the use of lasing wavelength to detect the temperature change of the medium. With the combination of the liquid core to increase sensitivity and FRL cavity to increase sensing resolution, the sensing system demonstrates a high sensitivity of 112.8 pm/degrees C and a thermal resolution of 8.16 x 10(-3)degrees C.
IEEE SENSORS JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Mengna Ren, Jiamin Li, Luyu Lv, Mengqi Zhang, Xiaojun Yang, Qihui Zhou, Danyang Wang, Rajendra Dhakal, Zhao Yao, Yuanyue Li, Nam Young Kim
Summary: This paper reports the fabrication and performance of a flexible capacitive pressure sensor based on a PVP nanofiber membrane. The sensor exhibits fast response time, high sensitivity, wide pressure range, and excellent stability, making it suitable for monitoring various physiological and physical signals.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Engineering, Multidisciplinary
Zhongjie Ouyang, Wei Liang, Xiaoxiang Yang, Jinquan Guo, Zhengchuang Lai, Jiewen Lin, Qiukun Zhang, Shuncong Zhong
Summary: In this study, a novel weight sensor based on the Michelson interferometer is proposed to meet the demands of complex environments. The sensor uses a dual-beam type elastic element, optimized to enhance its sensitivity. It achieves displacement sensing down to sub-nanometer resolution by utilizing a broadband optical coherence displacement measurement system and a spectrum correction method.
Article
Chemistry, Physical
Chunli Zhao, Yuan Gao, Dacheng Zhou, Fengmei Zhu, Jiayuan Chen, Jianbei Qiu
Summary: Metal halide perovskite Cs3Bi2Cl9:Er3+ was synthesized as an activator by solid-phase method using deionized water as the solvent. The phosphor doped with Er3+ ions emitted green light under triple near-infrared laser excitation. The upconversion emission showed strong temperature dependence and can be used for optical temperature measurement. The Cs3Bi2Cl9:Er3+ phosphor exhibited excellent accuracy and sensitivity in temperature measurement and compared favorably with reported materials.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Electrical & Electronic
Yulan Zhou, Jia Zhao, Xun Li
Summary: A novel photodetector with enhanced sensitivity through grating assistance has been proposed in this study, achieving high sensitivity at high speeds. For systems with data rates exceeding 40 Gbps, the performance of this photodetector is superior to traditional semiconductor optical amplifiers and avalanche photodiodes.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Optics
Ronghui Liu, Quanxing Wei, Lianning Dou, Liming He, Zonghao Lei, Lijie Sun, Yanfei Zou, Shikun Su, Bing Teng, Fei You, Jianhong Li, Degao Zhong
Summary: This paper synthesizes SrIn2O4: Yb3+, Er3+ up-conversion phosphor with strong photothermal conversion ability and high-precision dual-mode temperature measurement performance. It achieves high-precision temperature measurement using fluorescence intensity ratio and realizes optical temperature measurement based on temperature-induced color coordinate shift. The results have practical value for the application of photothermal conversion fluorescent materials in micro-zone heating and temperature self-monitoring.
JOURNAL OF LUMINESCENCE
(2023)
Article
Engineering, Electrical & Electronic
Ruoning Wang, Ke Tian, Meng Zhang, Zhiyuan Zhao, Gerald Farrell, Elfed Lewis, Pengfei Wang
Summary: This study presents a femtosecond laser fabricated refractive index modulated multimode fiber for high sensitivity vector bending measurement. The experimental results show that this fiber has high sensitivity, simple structure, and ultra-low temperature crosstalk in bending measurements.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Review
Materials Science, Characterization & Testing
Jinsu Gim, Lih-Sheng Turng
Summary: This paper provides a comprehensive overview of research and development in high surface quality injection molding, with a focus on measurements, influencing factors and causes, prediction, and control of surface quality and defects. Based on the reviewed studies, further research topics for high surface quality injection-molded products are proposed.
Article
Engineering, Electrical & Electronic
Ziting Lin, Riqing Lv, Yong Zhao, Jian Zhao, Xuguang Hu, Ruijie Liu
Summary: In this article, a simple integrated interferometer with an open cavity is analyzed and verified for salinity and temperature measurement. The interferometer consists of a sensing probe and maintains high sensitivity in salinity measurement. It can also obtain simultaneous spectrums of two interferometers, solving the problem of cross-sensitivity. The proposed sensing probe has advantages in size, sensitivity, and multiparameter sensing.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2023)
Article
Agronomy
Hongyu Huang, Yuefan Du, Zhiqin Long, Yuhe Li, Weiliang Kong, Huizhe Wang, Aimin Wei, Shengli Du, Ruihuan Yang, Jiawang Li, Tao Lin, Lidong Zhang, Bin Liang
Summary: In this study, a QTL interval for fruit skin gloss in cucumber was successfully mapped, and a candidate gene for controlling fruit skin gloss was identified, providing new insights for improving this trait in cucumber breeding.
MOLECULAR BREEDING
(2022)
Article
Engineering, Electrical & Electronic
Xin Wei, Yun Peng, Xiaoming Chen, Siqi Zhang, Yong Zhao
Summary: This paper focuses on the high sensitivity detection of seawater salinity using an SPR fiber optic sensor based on a tapered fiber optic. The morphology of the sensor was optimized by adjusting key parameters such as taper length, waist diameter, and coating thickness. Through experiments and simulations, a tapered fiber optic SPR sensor with specific dimensions was selected and successfully used to detect seawater salinity with good linearity and sensitivity.
OPTICAL FIBER TECHNOLOGY
(2023)
Article
Engineering, Mechanical
Shanwu Li, Faraz Abed Azad, Yongchao Yang
Summary: This study achieves full-field measurements of structural vibrations using incoherent optical methods. The sensitivity of incoherent optical methods is lower than that of coherent optical methods due to the quantization with round-off errors. The study introduces a new adaptive weighted averaging method with dithering to overcome the sensitivity limit and achieve super-sensitivity measurement of full-field deformational vibration of flexible structures.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2023)
Article
Engineering, Electrical & Electronic
Shiyuan Zhao, Jiwen Cui, Zhanjun Wu, Ziyun Wang, Jiubin Tan
Summary: Fiber deformation measurement is crucial for monitoring the health of a structure, with the optical phase tracking in OFDR scheme used to accurately measure stress, strain, or deformation. The differential phase is acquired by comparing the phase spectrum of the reference and measurement states, with a proposed phase unwrapping method based on density distribution to obtain a full unwrapped low-noise phase of the fiber. Additionally, a phase correction method is proposed to improve phase coherence and track fiber deformation with a resolution of tens of microns.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Article
Engineering, Electrical & Electronic
Shasha Yang, Jinwei Miao, Ting Lv, Wenjun Zhang, Guojun Zhang, Chenyang Xue, Wendong Zhang, Renxin Wang
Summary: A lollipop-shaped cilia sensor based on MEMS technology was designed to measure ocean turbulence, successfully detecting turbulence signals in the 0-200 Hz range. The sensor structure improved sensitivity and signal receiving area, with calibration experiments showing high sensitivity and accurate measurement of two-dimensional ocean turbulence.
SENSORS AND ACTUATORS A-PHYSICAL
(2021)
Article
Energy & Fuels
Esther Lopez, Irene Artacho, Alejandro Datas
Summary: A standardized method for measuring TPV efficiency has not been established yet, making it difficult to compare reported results. This study presents an experimental setup that can measure TPV efficiency at high view factors, allowing for more accurate measurements than previous works.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2023)
