摘要
超长周期大地电磁探测是研究大陆岩石圈导电性结构的有效方法之一。针对超长周期宽频带大地电磁数据的特点和采集技术要求,首次使用CIRRUS LOGIC公司生产的CS5372和CS5376A模数转换及数字滤波套片,建立了低功耗、低采样率、多通道的长周期智能化数据采集系统。并面向系统开发过程,提出该套片与FPGA芯片EP1K30QC208-3组合使用中的软硬件设计。
Super long period magnetotelluric detection is an effective method of studying electric conductivity of continental lithosphere. According to the characteristics and acquisition technical requirement of super long period wide band Magnetotelluric data, CS5372 and CS5376A were used in low power consumption low sample rate and multi-channel long Period Intelligence Magnetotelluric data acquisition system. Hardware and software design using AD and FPGA （EP1K30QC208-3） chip together is put forward.
出处
《电测与仪表》
北大核心
2007年第5期41-43,26,共4页
Electrical Measurement & Instrumentation
基金
国家自然科学基金资助项目(40434010)
关键词
大陆岩石圈
导电性
超长周期大地电磁
智能化
FPGA
continental lithosphere
electric conductivity
super long period magnetotelluric
intelligence
FPGA
