High speed data acquisition system for lightning transient electric field measurement
Zhou Long1, Ji Xinyuan2, Zhong Ye3, Zhang Zhipeng3
1.Dalian Lightning Protection Center, Dalian 116011;2.School of Electronic and Information Engineering, Nanjing University of Information Science and Technology, Nanjing 210044;3.Department of Atmospheric Physics, Nanjing University of Information Science and Technology, Nanjing 210044
Abstract：A high speed data acquisition system for lightning transient electric field measurement is designed by using the A/D conversion chip AD9057 and the lightning electric field sensor based on Pockels effect.And the hardware circuit and software flow diagram of this high speed acquisition system are given out.This system mainly includes lightning electric field sensor, high speed A/D conversion, data storage and data processing.Based on the design of hardware and software for the lightning field high speed acquisition system, the problem of speed matching between high speed A/D converting and low speed intelligent management in the process of data acquisition has been solved.Then, the signal acquisition of lightning transient electric field in the bandwidth of 0-10MHz is achieved.
周 龙, 季鑫源, 仲 晔, 张志鹏. 用于闪电瞬态电场测量的高速采集系统设计[J]. 气象水文海洋仪器, 2014, 31(1): 82-86.
Zhou Long, Ji Xinyuan, Zhong Ye, Zhang Zhipeng. High speed data acquisition system for lightning transient electric field measurement. Meteorological Hydrological and Marine Instrument, 2014, 31(1): 82-86.
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2014, Vol. 31 
