基于NIOSII的高密度电法仪采集系统设计  

Design of high-density electrical data acquisition system based on NIOSII

作　　者：焦阳[1,2] 和思铭[1,2] 朱士[3] 王君[1] 

机构地区：[1]吉林大学仪器科学与电气工程学院,长春130061 [2]空军航空大学,长春130022 [3]吉林大学地球探测科学与技术学院,长春130061

出　　处：《电测与仪表》2016年第6期113-117,共5页Electrical Measurement & Instrumentation

摘　　要：设计并实现了一种基于SOPC(System-on-a-Programmable-Chip)技术的嵌入式高密度电法仪采集系统,该系统通过在FPGA芯片上配置NIOSII软核处理器和相关的接口模块实现其主要硬件电路,并结合系统的软件设计同步控制三路24位ADC芯片进行采集数据,最后通过USB2.0接口芯片将采集的数据高速传输到PC机,从而实现了存储、实时显示和数据分析等功能。由于采用了SOPC、USB2.0和三通道同步控制技术,该系统具有设计灵活、数据处理速度快和扩展性好等优点。This paper describes the design of embedded high-density electrical data acquisition system based on SOPC（ System-on-a-Programmable-Chip） technolo-gy. The system realizes the synchronous control of three-channel AD7760 chips with 24-bit ADC to implement electrical analog to digital conversion,by means of configuring NIOSII core of the CPU and some corresponding interface modules on a FPGA to construct the module hardware. In addition,interface chip is used as the control chip to fulfill the USB 2. 0 function. The system meets the requirements of high-speed data transmission to PC in order to realize date saving,real-time display and data analysis functions. Due to the using of the SOPC,USB2. 0 and three-channel synchronous control techniques,the system has the distinguish features of high design flexibility,fast data processing and good expansibility.

关 键 词：高密度电法仪 SOPC NIOSII 三通道同步控制技术 

分 类 号：TM93[电气工程—电力电子与电力传动] TH763[机械工程—仪器科学与技术]