Zhengqiong Dong

Hubei University of Technology

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i-10 index

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Co-Authors

Jinlong Zhu

Huazhong University of Science and Technology

Shiyuan Liu

Huazhong University of Science and Technology

Xuanze Wang

Hubei University of Technology

Lei Nie

Hubei University of Technology

Zhao Hang

Huazhong University of Science and Technology

Xiuguo Chen

Huazhong University of Science and Technology

Renlong Zhu

Hunan University

Yijun Xie

Institute of High Energy Physics

Chuanwei Zhang

Washington University in St. Louis

Zhongsheng Zhai

Hubei University of Technology

Cooperative Institutions

Hubei University of Technology

Huazhong University of Science and Technology

Chinese Academy of Sciences

Tianjin University

State Key Laboratory of Digital Manufacturing Equipment and Technology

Zhejiang University

Harbin Institute of Technology

Shandong University

Tongji University

National University of Defense Technology

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Ellipsometry Study on Nanoparticles Grown by Atomic Layer Deposition

MRS Proceedings (2013)

Xueqi Zhou Ying Zhang Zhengqiong Dong Shiyuan Liu Chuanwei Zhang

Ellipsometry

Deposition

Void (composites)

10.1557/opl.2013.847

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Citations (1)

Effects of Measurement Configurations on the Sensitivity of Morpho Butterfly Scales Based Chemical Biosensor

Frontiers in Physics (2022)

Zhengqiong Dong Zhao Hang Lei Nie Shaokang Tang Chenyang Li

The Morpho butterfly wing with tree-shaped alternating multilayer is an effective chemical biosensor to distinguish between ambient medium, and its detection sensitivity is inextricably linked to the measurement configuration including incident angle, azimuthal angle, and so on. In order to reveal the effects and the selection of measurement configuration. In this work, the model of the Morpho butterfly wing is built using the rigorous coupled-wave analysis method by considering its profile is a rectangular-groove grating. On basis of the above model, the reflectivity of different diffraction orders at a different incident angle and azimuthal angle is calculated, and the influence of incident angle and azimuthal angle on performance of Morpho butterfly scales-based biosensor is analyzed. The optimal incident angle at each azimuthal angle is given according to the proposed choice rule, then the azimuthal angle and the corresponding incident angle can be selected further.

Morpho

Goniometer

Solid angle

10.3389/fphy.2021.806904

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Citations (4)

Robust Vertical Scanning Interferometry At a Long Coherence Length

Hang Zhao Yijun Xie Renlong Zhu Zhengqiong Dong Xuanze Wang

10.2139/ssrn.4856048

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Citations (0)

Robust vertical scanning interferometry at a long coherence length

Optics and Lasers in Engineering (2024)

Zhao Hang Yijun Xie Renlong Zhu Zhengqiong Dong Xuanze Wang

10.1016/j.optlaseng.2024.108769

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Optical Measurement of Photonic Nanostructures Based on Quantitative Phase Microscopy

2022 Photonics & Electromagnetics Research Symposium (PIERS) (2023)

Zedi Li Yijun Xie Renlong Zhu Jingyi Wang Zhengqiong Dong

Nowadays, photonic devices are increasingly applied in photonic chips, and photonic nanostructures are an important component of photonic devices. Due to their small size and high precision requirements, it is necessary to measure photonic devices as soon as possible after production. In this paper, we propose a microscopy system based on modified co-optical off-axis digital holographic microscopy (CO-DHM), which uses the Kramers-Kronig (KK) relation to extract phase information from interferograms. This configuration reduces noise and is single-shot, meaning high-speed and high-precision phase imaging can be achieved. We applied this microscopy system to the measurement of photonic nanostructures and perform phase imaging of a strip waveguide and a gold marker on an in-house developed photonic chip.

Digital Holographic Microscopy

Waveguide

10.1109/piers59004.2023.10221304

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Citations (1)

Improved Measurement Accuracy Based on Moving Sine-Wave Fitting for Ultrasonic Ranging

Shock and Vibration (2022)

Xuanze Wang Aihui Wang Jinping Yin Zhao Hang Zhengqiong Dong

In ultrasonic ranging system, the time-of-flight (TOF), which acquired by the determination of two special points of ultrasonic echo, is important for accuracy and speed. The published calculation of TOF processing methods is too enormous to affect the real-time performance. To improve its measurement accuracy and speed, we proposed a new algorithm called “moving sine-wave fitting” to calculate the envelope of ultrasonic echo for each calibration point. Then, the absolute feature point (AFP) corresponding to half of the envelope peak can be defined and used to find out the relative feature point (RFP); the linear relationship between the RFPs and the known distances should be obtained referring to calibration points. At last, the distance on the measure can be acquired by using linear interpolation according to the above relationship. The measurement experiments have been performed on a set of distances, which shows a good measurement resolution that the overall measurement accuracy is 0.513 mm, and the linear correlation coefficient between the RFPs and the obtained distances is R2 = 0.806.

Ranging

Envelope (radar)

Sine wave

Interpolation

Accuracy and precision

Echo (communications protocol)

Feature (linguistics)

Point target

10.1155/2022/9570857

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Citations (1)

Fast and Accuracy Camera Calibration Based on Tsai Two-Step Method

Shaokang Tang Zhengqiong Dong Wei Feng Qi Li Lei Nie

High precision camera calibration is the premise of establishing 3D surface measurement system with excellent performance. Therefore, it is necessary to conduct systematic research on camera calibration method to improve measurement efficiency and accuracy. The original Tsai Two-Step method had two main disadvantages: firstly, different points on different planes should be adopted for camera calibration; Secondly, only radial distortion of the lens is considered. Many scholars optimized the method, but most of them optimized one of its shortcomings. In this paper, comprehensive optimization was considered to improve the two shortcomings together. At the same time, Taylor series expansion method is used to process the data and improve the calibration speed and accuracy. The improved method is proved to be feasible by comparing experiments with the Zhang's calibration method.

Distortion (music)

10.1109/icmre51691.2021.9384826

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Citations (5)

Moving sine average–based surface recovery method with enhanced noise resistance in white light interferometry

Optical Engineering (2025)

Zhengqiong Dong Renlong Zhu Zhao Hang Yijun Xie Jingyi Wang

Sine

White light interferometry

Optical engineering

10.1117/1.oe.64.2.024104

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High-Precision Correction for Spatial Light Modulator Based on Quadriwave Lateral Shearing Interferometry

IEEE Photonics Technology Letters (2024)

Zhengqiong Dong Ren Xu Xinqin Liu Xianwen Huang Xiangdong Zhou

Shearing (physics)

Spatial light modulator

Shearing interferometer

10.1109/lpt.2024.3363701

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Remaining Useful Life Prediction of Aeroengines Based on Multi-Head Attention Mechanism

Machines (2022)

Lei Nie Shiyi Xu Lvfan Zhang Yehan Yin Zhengqiong Dong

Aeroengines are the core components of an aircraft; therefore, their health determines flight safety. Currently, owing to their complex structure and problems associated with their various detection parameters, predicting the remaining useful life (RUL) of aeroengines is very important to ensure their safety and reliability. In this paper, we propose a new hybrid method based on convolutional neural networks (CNN), timing convolutional neural networks (TCN), and the multi-head attention mechanism. Firstly, an CNN-TCN model is established for multi-dimensional features, in which two layers of the CNN extract features of multi-dimensional input data, and the TCN process the timing features. Subsequently, the outputs of multiple CNN-TCNs are weighted using the multi-head attention mechanism, and the results are stitched together. Next, we compare the root mean square error (RMSE) and scores of various RUL prediction methods to show the superiority of the proposed method. The results showed that compared with previous research results, the RMSE and Score of FD001 decreased by 10.87% and 42.57%, respectively, whereas those of FD003 decreased by 14.13% and 58.15%, respectively.

10.3390/machines10070552

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Citations (9)