CN EN

WU Di

Professional title:Assistant professor

Office No.:+86-010-51681648

Email:diwu@bjtu.edu.cn

Education

04/2004~07/2007: Ph.D. / Acoustics   Institute of Acoustics, Chinese Academy of Sciences, Beijing, China

09/2001~03/2004: M.S. / Optical Engineering   Department of Physics, Beijing Jiaotong University

09/1997~07/2001: B.S. / Applied Physics   Department of Physics, Beijing Jiaotong University

Professional Experience

●Extensive experience in ultrasonic imaging, ultrasonic wave propagation simulation, digital signal and image processing, structural health monitoring, ultrasonic instrument development and non-destructive evaluation.

●Strong theoretical background in physics, mathematics, acoustics, optics and electrical engineering. Deeply involved in 20 research projects with high frequency acoustical transducer design, numerical modeling (MATLAB, Field II, PZFlex, COMSOL), hardware integration and software programming(Visual Studio with C&C++, LabVIEW).

Research Field

Ultrasonic transducer design and fabrication;

Ultrasonic phased array and guided wave system;

Ultrasound nondestructive testing for industrial applications;

Ultrasound with acoustic/optical/laser electric sensors.

Projects

2007/07~2008/06

Participated in the research project of China Special Inspection Institute: Development of automatic ultrasonic inspection system for stainless steel pipes.

2008/07~2009/10

Participated in the research project: Ultrasonic Inspection System for Welding Layer of Sea Oil Tree Control Valve

2009/07~2010/06

Participated in the research project: Development of SL2000B multi-channel train axle ultrasonic detector

2010/05~2011/08

Participated in the research project sponsored by the Science and Technology Committee of Beijing Railway Administration: On-line ultrasonic automatic detection technology and equipment for rail welds

2012/02~2013/02

The research project during the visiting scholar period: Development of high-frequency/high-power ultrasonic transducers for biomedical application

2013/05~2014/5

Participated in the research project of Shenhua Group: Development of an online detection system for wheel rim defects of heavy haul trains

2013/7~2014/12

Participated in the research project: Development of low-frequency sandwich transducers for rail ultrasonic guided wave detection

2013/3~2015/12

The research project of Beijing Young Talents Program: Semi-analytical finite element analysis of ultrasonic guided wave propagation

2014/7~2016/7

Participated in the research project: NC-LUT4.5 EMU wheel rim online flaw detection system of Nanning EMU

2016/7~2019/4

Participated in the research project: Development of phased array detection system for train axles

2019/5~2021/7

Participated in the research project: Electromagnetic ultrasonic detection system for near-surface defects on the wheel tread of the Hangzhou-Haining subway line

2020/3~2022/7

Participated in the research project funded by the Ministry of Science and Technology Key Research and Development Program: Intelligent deepening research and application development of a new generation of rail flaw detection vehicles

Teaching Courses

College Physics

Laboratory Experiments of College Physics

Measurement with LabVIEW platform

Paper

1.    WU Di, SHAO Jiaqi, BI Chao, et al. Application of the racetrack electromagnetic coil transducer in online ultrasonic testing system for heavy haul freight train (in Chinese), Journal of Applied Acoustics, to be published in 2022.

2.    Wu Di, Wei Xiaohe, Bi Chao, et al. Ultrasonic simulation and imaging experiment for low acoustic impedance layer under media with high acoustic impedance (in Chinese), Physics Experimentation, 41(7), 17-22, 2021.

3.    Wu Di, Wei Xiaohe, Bi Chao, et al. Application of the spiral coil electromagnetic acoustic transducer in online ultrasonic testing system (in Chinese), Journal of Applied Acoustics, 40(3): 329-334, 2021.

4.    Wu Di, Wei Xiaohe, Junfang Wu, et al. Development of multifunctional ultrasonic module in online ultrasonic testing system (in Chinese), National Academic Conference on equipment monitoring, diagnosis and maintenance, Fuzhou, 2020.

5.    CHEN X A, ZHANG S, LI Z Y, Di Wu, et al. Algebraic reconstruction and structure recognition for ultrasound CT image on physical model (in Chinese), CT Theory and Applications, 28(2),195-204, 2019.

6.    Junfang Wu, Di Wu, Bonan ZHANG, et al, High frequency ultrasonic imaging for fingerprint under glass layer (in Chinese), Nondestructive Testing, 41(7),45-48, 2019.

7.    Xuezhi Fei, Junfang Wu, Mingzhe Liu, Di Wu, et al, Defect Recognition Algorithm in ultrasonic phased array image (in Chinese), Nondestructive Testing, 40(8), 61-66, 2018.

8.    Dandan Li, Di Wu, Yaping Wang, et al, Algorithms for water immersion ultrasonic SAFT imaging used in teaching experiment (in Chinese), Physics Experimentation, 37(6), 6-9, 2017.

9.    Zhenning Zhao, Di Wu, Bonan ZHANG, et al, The signal analysis methods of Ultrasonic Guided Wave propagation modes in thin plate(in Chinese), Nondestructive Testing, 39(7),10-15, 2016.

10.  Bonan ZHANG, Yusen Huo, Di Wu, et al, Finite Element Analysis of Testing to Titanium alloy Sheet Using Lamb wave (in Chinese), Nondestructive Testing, 37(10), 64-68, 2015.

11.  Hua Xue, Di Wu, Yaping Wang, et al, Research on ultrasonic leak detection methods of fuel tank, IEEE International Ultrasonics Symposium. Taipei, 68-71, 2015.

12.  Xiong Chen, Chengyong Wang, Di Wu, et al. Reconstruct digital image by algebraic reconstruction technique based programming(in Chinese). CT Theory and Applications, 24(4), 485-493, 2015.

13.  Zhenning Zhao, Di Wu, Yaping Wang, et al, Research on data processing method on online CRH train wheel ultrasonic testing system (in Chinese), NDT, 39(2),22-27, 2015.

14.  Yusen Huo, Di Wu, Wei Deng, et al, Research on propagation characteristics of guided wave in rail excited by low-frequency piezoelectric transducer, Symposium on Piezoelectricity, Acoustic Waves, and Device Applications. Beijing, 457-460, 2014.

15.  Joseph A. Johnson, Kyungrim Kim, Shujun Zhang, Di Wu, Xiaoning Jiang, High-temperature acoustic emission sensing tests using a yttrium calcium oxyborate sensor, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 61(5), 805-814, 2014.

16.  Jianguo Ma, Sijia Guo, Di Wu, et al, Design, fabrication, and characterization of a single-aperture 1.5-MHz/3-MHz dual-frequency HIFU transducer, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 60(7), 1519-1529, 2013.

17.  Di Wu, Yongping Teng, Zhongling Zhao, et al, Ultrasonic testing of the welding layer of the controlled valve used in subsea trees, (in Chinese). Nondestructive Testing, 39(7),376-379, 2010.

18.  Di Wu, Yongping Teng, Jianying Cui, et al, Development of the ultrasonic B scan inspector for the hollow hat stiffener frame(in Chinese), 9th National Conference on Nondestructive Testing, 2010, Shanghai, China.

19.  Di Wu, Yongping Teng, Zhongling Zhao, Application of network data transmission in ultrasonic automatic inspection system,17th World Conference on Nondestructive Testing 2008, Shanghai, China.

20.  Di Wu, Mingxuan Li, Xiaomin Wang, et al, The ultrasonic field radiated by a normal shear wave probe, Chinese Journal of Acoustics, 26(1), 85-96, 2007.

21.  Di Wu, Mingxuan Li, Xiaomin Wang, et al, The ultrasonic transient field radiated by a normal shear wave probe, Chinese Journal of Acoustics, 32(4), 304-309, 2007.

22.  Di Wu, Weihua Song, Mingxuan Li, et al, The experimental study of the characteristic of ultrasonic field radiated by a normal shear wave probe(in Chinese), 6th National academic conference of Chinese Acoustical Society, 2006, Xiamen, China

23.  Di Wu, Mingxuan Li, Xiaomin Wang, The shear wave field radiated by an electromagnetic acoustic transducer, Chinese Physics Letter, 23(12), 3294-3296, 2006.

24.  Di Wu, Mingxuan Li, Xiaomin Wang, et al, Numerical simulation of a squared modulation burst echo from a layered medium(in Chinese), Youth academic conference of Chinese Acoustical Society, 2005, Hangzhou, China

25.  Di Wu, Yongping Teng, Development and application of a universal scanning image software for NDT, 8th National Conference on Nondestructive Testing, 2003, Suzhou, China

26.  Di Wu, Zhaodong Zhang, Xiufu Han, et al, Development of a universal scanning imaging display software for NDT(in Chinese), Nondestructive Testing, 25(8), 403-406, 2003.