基于FPGA的穆斯堡尔谱仪数据采集卡  

Mssbauer spectrometric data acquisition based on FPGA

作　　者：张源[1] 李世民[1] 陈楠[1] 朱静波[1] 夏元复[1] 

机构地区：[1]南京大学穆斯堡尔实验室,南京210093

出　　处：《核技术》2008年第6期473-475,共3页Nuclear Techniques

摘　　要：FPGA(Field Programmable Gate Array)是一种可编程器件,有着强大的逻辑运算和时序控制能力,尤其擅长于时序信号的采集和处理。基于FPGA的穆斯堡尔谱仪数据采集卡,改变了传统的使用单片机的方法,运算速度明显提高,仪器体积显著减小。通过QuartusⅡ开发系统,选用Altera公司Cyclone系列的EP1C6T144C8芯片实现穆斯堡尔谱仪的计数器、存储器及串行通信功能。EP1C6T144C8芯片的逻辑单元为5980个,存储空间为92160位,丰富的逻辑资源可以很好的满足穆斯堡尔谱仪数据采集卡的要求,并且可以实现功能和参数修改。FPGA（Field Programmable Gate Array） is a programmable device with strong logical function and timing control ability. It is extremely potent in acquiring and processing timing signals. By replacing the traditional used SCM （Single-Chip Microcomputer） with FPGA, counting speed of Moesssbauer spectrometric data acquisition can be improved markedly with significantly decreased size of the spectrometer. The counter, RAM and RS-232 communi- cation of the module are developed on Altera Cyclone series chip EP 1C6T144C8 with Quartus Ⅱ. EP1CrT144C8 has 5980 logical units accompanied by 92160 bits of memory space. It is so powerful that all needs in data acquisition of the Moessbauer spectrometer can be perfectly satisfied while allowing modifications in functions and parameters.

关 键 词：FPGA 计数器 存储器 串行通信 

分 类 号：TP274.2[自动化与计算机技术—检测技术与自动化装置]