Name: Changfeng Xia Title: Distinguished Professor/ Associate Professor

Email: xchangfeng@ncu.edu.cn

Supervisor Type: Master's Supervisor

Main Courses: Microfabrication Technology and Equipment, Introduction to the Discipline, Sensor Principles and Circuit Design

Personal Website:

Research Directions

Research direction focuses on Micro-Electro-Mechanical Systems (MEMS) devices and systems, including: MEMS actuators and sensors, Flexible tactile sensors, Three-dimensional (3D) imaging based on MEMS chips. Majors Offered: Instrument Science and Technology (Academic Master), Instrumentation Engineering (Application-oriented Master), and Mechanical Engineering (Application-oriented Master). Students with backgrounds in instrumentation, machinery, electronics, materials, physics, or mathematics are welcome to apply.

Education Background

2007.09 – 2011.07: B.S. in Materials Physics, Northwest Polytechnical University.

2011.09 – 2014.04: M.S. in Mechanical Engineering, Northwest Polytechnical University.

2014.09 – 2021.12: Ph.D. in MEMS and Nanotechnology, Northwest Polytechnical University.

Work Experience

2017.01 – 2024.03: Technical Director and Senior Engineer, Xi'an ZhiSensor Technology Co., Ltd.

2024.04 – Present: Distinguished Professor, School of Advanced Manufacturing, Nanchang University

Academic Appointments

Journal Reviewer:

IEEE Transactions on Industrial Electronics, Scientific Reports, Sensors, and Applied Sciences.

Personal Honors

2022.05: Xi'an Talent Program Young Talent.

2024.02: Xi'an Local Leading Talent.

2023.04: Gold Medal, 8th China International "Internet+" College Students Innovation and Entrepreneurship Competition.

2022.06: Outstanding Doctoral Graduate, Northwest Polytechnical University.

Major Achievements

Previously awarded as a Xi'an Local-level Leading Talent, Talent Program Young Talent, and Xi'an Science and Technology Expert; as the project leader, won the national Gold Medal and Shaanxi Province Runner-up in the 8th "Internet+" Innovation and Entrepreneurship Competition.

Primarily engaged in research on MEMS devices, sensors, and their applications; supported by the National Key Research and Development Program and the Provincial Department of Science and Technology, led an R&D team of over 30 people to develop MEMS scanning mirrors, MEMS scanning mirror control modules, and various 3D cameras. The developed products were awarded the TOP 10 Innovative Machine Vision Products of 2021, TOP 10 Shipment Volume of Domestic High-precision 3D Machine Vision Products in 2022, TOP 10 Shipment Volume of Chinese Vision-guided 3D Cameras in 2023, and Machine Vision Industry Chain Innovation Pioneer in 2024. As the first author, 19 patents were authorized, including 1 US patent, 1 Japanese patent, and 1 European patent, with 2 technological achievement transformations realize

Published Papers:

1.Xia C, Qiao D, Peng A, et al. Analytical Solution of Nonlinear Dynamics in Electrostatically Driven MEMS Scanning Mirrors[J]. Journal of Microelectromechanical Systems, 2024.

2. Xia C, Qiao D, Song X, et al. A time division capacitive feedback method of electrostatic MEMS mirror driven by PWM signal[J]. Sensors and Actuators A: Physical, 2021, 322: 112631. .

3. Xia C, Qiao D, Zeng Q, et al. The squeeze-film air damping of circular and elliptical micro-torsion mirrors[J]. Microfluidics and Nanofluidics, 2015, 19: 585-593.

4. Xia C, Qiao D, Zhang Y, et al. A position feedback solution based on the acoustic signal produced by electrostatically driven MEMS scanning mirror[C]//2017 IEEE 12th International Conference on Nano/Micro Engineered and Molecular Systems (NEMS). IEEE, 2017:558561.(CPCI,EI)

5. Peng A, Qiao D, Xia C, et al. Accurately estimating the scanning angle of an electrostatic MEMS mirror with a novel damping model[J]. Sensors and Actuators A: Physical, 2024, 373: 115392.

6. Yang D, Qiao D, Xia C. Curved light surface model for calibration of a structured light 3D modeling system based on striped patterns[J]. Optics Express, 2020, 28(22): 33240-33253.

7. Yang D, Qiao D, Xia C, et al. Adaptive horizontal scaling method for speckle-assisted fringe projection profilometry[J]. Optics Express, 2023, 31(1): 328-343.

8. Zhang Y, Qiao D, Xia C, et al. A method for high dynamic range 3D color modeling of objects through a color camera[J]. Machine Vision and Applications, 2023, 34(1)

Authorized Patents:

1. Changfeng Xia, Wenhui Zheng, Xiumin SONG, Qiaoming YOU, Dayong QIAO, Method and circuit for obtaining capacitive feedback signal of capacitive feedback-type micro torsion mirror,美国专利, US11402952B2, 2020-04-20

2.夏長鋒, 鄭文会, 宋秀敏, 游橋明, 喬大勇, 容量帰還型トーションマイクロミラーの容量帰還信号を取得する方法および回路, 日本专利, JP7207789B2, 2020-04-20

3. Changfeng Xia, Wenhui Zheng, Xiumin SONG, Qiaoming YOU, Dayong QIAO, Method and circuit for obtaining capacitive feedback signal of capacitive feedback-type micro torsion mirror,欧洲专利, EP3964878B1, 2020-04-20

4. 夏长锋、徐益锋、张文绵、王茂弛、欧阳校文、吴骁与、刘欣林、吕安之，基于左右脸深度相机的快速三维人脸重建方法与系统，CN120976441A，2025-10-17

5. 汪欣莹、夏长锋、张文绵、徐益锋，基于双目视图的区域化色彩校正方法与系统，CN120931540A，2025-10-13

6. 夏长锋、宋秀敏、乔大勇、何伟, 一种静电梳齿驱动的振镜, CN107490857A, 2017-08-08

7. 夏长锋、何耀军、谈鹏、郑文会、乔大勇, 谐振式扫描镜幅值测量系统及方法, CN107402061A, 2017-06-29

8. 夏长锋、吴洋、郑文会、乔大勇, 基于李萨如图像扫描的投影方法, CN107229170A, 2017-06-29

9. 夏长锋、吴洋、郑文会、乔大勇、宋秀敏, 基于Lissajous图形扫描实现高刷新率高分辨率投影方法及投影仪, CN107463058A, 2017-08-04

10. 夏长锋、宋秀敏、杨迪、乔大勇、何伟, 一种可变焦3D深度相机及其成像方法, CN108718406A, 2018-05-31

11. 夏长锋、宋秀敏、乔大勇、何伟, 一种基于振镜的螺旋线扫描激光投影方法及系统, CN108398779A, 2018-02-12

12. 夏长锋、宋秀敏、杨迪、乔大勇、何伟, 基于扫描振镜和事件相机激光线扫描3D检测方法及系统, CN109458928A, 2018-10-29

13. 夏长锋、郑文会、宋秀敏、游桥明、乔大勇, 获取电容反馈式微扭转镜电容反馈信号的方法及电路, CN110333598A, 2019-04-29

14. 乔大勇、夏长锋, 一种微振镜的反馈系统及方法, CN106644052A, 2016-12-14(导师第一)

15. 乔大勇、夏长锋、刘耀波、李昭、梁小伟, 基于利萨如图扫描方式的投影显示方法, CN102722065A, 2012-04-28(导师第一)

16. 夏长锋、宋秀敏、乔大勇、苑伟政， 微扭转镜光电检测系统及方法, CN105910697A, 2016-04-11

17. 夏长锋、宋秀敏、乔大勇、游桥明, 一种扫描式结构光投影系统, CN205718875U, 2016-06-28

18. 夏长锋、何耀军、宋秀敏、郑文会、乔大勇, 一种基于光电反馈的谐振式扫描镜, CN210776030U, 2019-11-26

19. 夏长锋、宋秀敏、何耀军、郑文会、乔大勇, 一种基于光电反馈的MEMS振镜模组, CN210776029U, 2019-11-26

20. 夏长锋、宋秀敏、谈鹏、何耀军、乔大勇、何伟, 一种基于MEMS振镜结构光模块的光电检测反馈系统, CN207963768U, 2018-03-19