Songling Huang received the bachelor’s degree in automatic control engineering from Southeast University, Nanjing, China, in 1991, and the Ph.D. degree in nucle ar application technology from Tsinghua University, Beijing, China, in 2001. He is currently a Professor within the Department of Electrical Engineering, Tsinghua University. He is the director of the Electromagnetic Testing and Equipment Safety Assessment Research Center of Tsinghua University, the executive director of the China Non-Destructive Testing Society, and the executive director of the Equipment Structure Health Monitoring and Prognostics Society. His research interests include nondestructive evaluation and instrument techniques.Yu Zhang received the bachelor’s degree from North China Electric Power University in 2013, and the Ph.D. degree with the Department of Electrical Engineering from Tsinghua University in 2017. His research interests include nondestructive testing and evaluation.Zheng Wei received the bachelor’s degree from Tsinghua University in 2009, and the Ph.D. degree with the Department of Electrical Engineering from Tsinghua University in 2015. His research interests include nondestructive testing and evaluation.Shen Wang received the bachelor’s and Ph.D. degrees in electrical engineering from Tsinghua University, Beijing, China, in 2002 and 2008, respectively. He is currently an Associate Professor within the Department of Electrical Engineering, Tsinghua University. His research interests include nondestructive testing and evaluation, and virtual instrumentation.Hongyu Sun received the bachelor’s degree from the Department of Renewable Energy, North China Electric Power University, Beijing, China, in 2015, and the master’s degree from the department of Electrical and Electronic Engineering, North China Electric Power University, Beijing, China, in 2018. He is currently pursuing the Ph.D. degree within the Department of Electrical Engineering, Tsinghua University. His major research interests include electromagnetic measurement, nondestructive evaluation, and plasma physics.

• Introduction.- Directivity and controllability of electromagnetic ultrasonic transducer.- Time-Of-Flight extraction method for electromagnetic ultrasonic guided wave detection signal.- Guided wave electromagnetic ultrasonic tomography.- Guided wave electromagnetic ultrasonic scattering imaging.