Wang Chao, Dong Xiucheng, Zhang Mintao, et al. Development of electromagnetic pulse measurement system based on FPGA[J]. High Power Laser and Particle Beams, 2015, 27: 125006. doi: 10.11884/HPLPB201527.125006
Citation:
Wang Chao, Dong Xiucheng, Zhang Mintao, et al. Development of electromagnetic pulse measurement system based on FPGA[J]. High Power Laser and Particle Beams, 2015, 27: 125006. doi: 10.11884/HPLPB201527.125006
Wang Chao, Dong Xiucheng, Zhang Mintao, et al. Development of electromagnetic pulse measurement system based on FPGA[J]. High Power Laser and Particle Beams, 2015, 27: 125006. doi: 10.11884/HPLPB201527.125006
Citation:
Wang Chao, Dong Xiucheng, Zhang Mintao, et al. Development of electromagnetic pulse measurement system based on FPGA[J]. High Power Laser and Particle Beams, 2015, 27: 125006. doi: 10.11884/HPLPB201527.125006
Provincial Key Lab on Signal and Information Processing,School of Electrical Engineering and Electronic Information,Xihua University,Chengdu 610039,China;
2.
Institute of Electronic Engineering,CAEP,Mianyang 621900,China
In order to measure the electric field of electromagnetic pulse with nanosecond rise time, a kind of broad-band electric field of electromagnetic pulse measurement system based on FPGA is proposed. Monopole antenna is used to receive electrical signal, high-speed AD converter is used to sample voltage signal, and the sampled data can be received and saved into DDR2 and FLASH Memory by FPGA. The key technologies of signal conditioning, trigger mode, FPGA control and anti-interference are emphatically introduced. The performance and function of the electric field probe are tested by experiment. The sampled signals by electric field probe and oscilloscope are processed and compared by software. Research results show that the electric field of electromagnetic pulse measurement system has the characteristics of good linearity, small size, high noise immunity, and it can be used to measure the electric field of electromagnetic pulse with more than 2.5 ns rise time and 0-50 kV/m electric field intensity.
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