摘要
为了满足瞬变电磁探测中晚期电磁信号采集的要求,选择高性能24位模数转换器AD7762,以FPGA为控制核心实现信号的高精度采集,结合USB2.0接口芯片CY7C68013-A,将采集的数据高速传输至上位机,上位机采用LabVIEW作为开发平台,完成数据显示和分析功能。实验结果表明,基于FPGA的电磁信号采集系统具有良好的性能指标和扩展性,测量准确,能够满足电磁探测数据采集的要求。
In order to meet the need of transient electromagnetic exploration, a high precision digital recorder mainly made by the high performance 24 bit A/D chipset AD7762 and logic control core FPGA is introduced. The high-speed data channel is built between FPGA and PC through applying the chip CY7C68013-A as the USB2.0 interface chip. PC used LabVIEW as a develop ment platform to complete data display and analysis function. Test results indicated that the system has good performance, scalabili ty and accurate, which meets the needs of data acquisition of electromagnetic exploration.
出处
《电子技术应用》
北大核心
2013年第8期88-90,94,共4页
Application of Electronic Technique
基金
2012年湖北省重点新产品新工艺研究开发基金资助项目(2012BAA06007)
关键词
电磁信号
FPGA
高精度
模数转换器
USB2
0
electromagnetic signal
FPGA
high precision
analog-to-digital converter
USB2.0
