论文信息 - Experimental study on high-current pulse generator for electromagnetically induced acoustic emission

Experimental study on high-current pulse generator for electromagnetically induced acoustic emission

The high-current pulse generator which is used in non-destructive testing technique of electromagnetically induced acoustic emission (EMAE) is designed based on the economical efficiency and practicability. Using the energy storage of the capacitor, the pulse high current which the EMAE needs can be achieved by capacitor discharging instantaneous. Theoretical analysis and experiment of the generator is carried out. The maximum output current can reach 3000 A, when the discharge load is 0.04 Omega and 1 muH. Applying to the EMAE experiment, it can achieve the expected effect.

[1] E. L. Neau. Environmental and industrial applications of pulsed power systems , 1993 .

[2] P. Finkel,et al. Electromagnetically induced acoustic emission—novel NDT technique for damage evaluation , 2001 .

[3] J. Biebach,et al. Compact modular power supplies for superconducting inductive storage and for capacitor charging , 2001 .

[4] J. S. Bernardes,et al. Analysis of a capacitor-based pulsed-power system for driving long-range electromagnetic guns , 2003 .

[5] M. Duffy,et al. Electromagnetic generators for power harvesting , 2004, 2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551).

[6] P. Finkel,et al. Electromagnetic stimulation of the ultrasonic signal for nondestructive detection of ferromagnetic inclusions and flaws , 2004, IEEE Transactions on Magnetics.

[7] H. Akiyama,et al. Novel dual Marx Generator for microplasma applications , 2005, IEEE Transactions on Plasma Science.