An Experimental Research on Acoustic Emission Technology Induced by Eddy Current
Electromagnetically Induced Acoustic Emission (EMAE) technology is a new type of Nondestructive Test (NDT) techniques, which does nondestructive detection with the effect of dynamic electromagnetic loading to generate a stress field stimulating stress waves from the defects. In order to satisfy the requirement of EMAE testing, such as high power output, pulse counts adjusting and the frequency of the output in wide range, a new power supply based on Direct Digital Synthesis (DDS) is designed. The power supply includes signal generating, power amplifying and series resonating, which the control circuit is the core part. Experiments results show that the system can satisfy the requirement of EMAE testing with the merits of outstanding stability and flexible parameter adjustment.
Liu Suzhen Jin Liang Li Wenjie Zhang Chuang Yang Qingxin Zhang Huijuan Zhao Zhizhong
Province-Ministry Joint Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability School of Electronic Engineering & Automation, Tianjin Polytechnic University, Tianjin, China Province-Ministry Joint Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability
国际会议
西安
英文
573-576
2011-10-23（万方平台首次上网日期，不代表论文的发表时间）