Zhewen Ding

Operando spatiotemporal reconstruction of surface thermo-mechanical fields in a lithium-ion pouch cell using a quasi-distributed fiber Bragg grating sensor network

Yan Liu, Haoran Gao, Zhewen Ding, Kangpei Meng et autres

Lithium-ion batteries exhibit complex thermo-mechanical behavior during operation, and the spatiotemporal evolution of temperature and strain is closely related to performance degradation and structural safety. However, existing sensing methods remain limited in achieving high-precision operando decoupled monitoring of multiple physical fields, restricting …

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Parallel Dual-FPI Microcavity Hydrogen Sensor Based on the Vernier Effect

Siyao Chen, Xueqing Zheng, Wenwen Qian, Zhewen Ding et autres

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Machine Learning-Empowered Helical Intermediate-Period Fiber Grating for Operando Battery State of Charge Monitoring

Yisheng Zhang, Junlan Zhong, Haiqing Lin, Zhewen Ding et autres

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Dual-Pulse ϕ-OTDR Dynamic Strain Range Expansion Method Assisted by Dual Wavelengths

Zhipeng Yang, Zhewen Ding, Yu Zhang, Zhao Chunliu

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Chirped-FBG-Assisted Weak-FBG Demodulation Method and Its Application in Quasi-Distributed Temperature Sensing and Battery Monitoring

Zhewen Ding, Yuqing Hou, Haoran Gao, Junlan Zhong et autres

Thermal runaway of the power battery can pose serious security risks. Therefore, it is imperative to monitor and control battery temperature in real time. To address the shortcomings of existing fiber Bragg grating (FBG) based temperature demodulation methods on efficiency, accuracy, and …

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Quasi-distributed humidity sensing method based on a polyimide/lithium bromide–coated thin-diameter weak FBG array

Yajin Que, Zhewen Ding, Runze Li, Dongyou Yu et autres

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Signal reconstruction and time-stability analysis in φ-OTDR with VMD-HHT

Weichao Zhang, Zhaopeng Si, Zhipeng Yang, Lekai Chen et autres

To tackle signal susceptibility to noise interference and poor time stability during multi-frequency vibrations in distributed vibration sensing with phase-sensitive optical time-domain reflectometry, this paper introduces a signal reconstruction method combining Variational Modal Decomposition (VMD) with the Hilbert-Huang Transform (VMDHHT). This method …

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Simultaneous Humidity and Temperature Sensing Based on Fiber Optic Microsphere Probes

Wenwen Qian, Peiran He, Zhewen Ding, Li Zhang et autres

Simultaneous humidity-temperature sensing based on dual fiber microsphere probes is proposed. By FFT/filtering for spectral separation, the sensitivities are achieved with 1.22 nm/%RH and 0.54 nm/°C.

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Volatile organic compound gas detection with a wide concentration range based on optical fiber SPR

Junlan Zhong, Zhewen Ding, Lin Yin, Ben Xu et autres

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Distributed optical fiber humidity sensing system based on phase-sensitive optical time-domain reflectometer

Runze Li, Zhewen Ding, Minghao Liu, X. C. Yuan et autres

Humidity monitoring is crucial for the safe storage of chemicals and medicines, the storage of concrete sealing and curing agents, and the long-term storage of seeds and grains. Most existing and humidity sensors are classified as point sensors.1 Although these sensors are …

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Scanning imaging through the scattering medium based on the guided filter assisted by a WTMM and NLM

Yiyang Zhang, Zhewen Ding, Runze Li, Xianglei Meng et autres

In a scanning imaging system through a scattering medium, the quality of the imaging result is related to the energy distribution of the focusing point. In actual imaging, the energy of the focusing point cannot be perfectly concentrated. The scattering noise is …

Volatile Organic Compound Gas Detection with a Wide Concentration Range Based on Optical Fiber Spr

Junlan Zhong, Zhewen Ding, Lin Yin, Ben Xu et autres

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