基于FPGA-PCIe的声发射信号采集系统硬件设计  

Hardware Design of Acoustic Emission Signal Acquisition System Based on FPGA-PCIe

作　　者：郭涛[1] 张程杰 梁颖 石帅 刘启明 GUO Tao;ZHANG Chengjie;LIANG Ying;SHI Shuai;LIU Qiming(State Key Laboratory of Electronic Test Technology,North University of China,Taiyuan 030051;China Aerospace Science and Technology Corporation,China Academy of Launch Vehicle Technology,Beijing 100000)

机构地区：[1]中北大学电子测试技术国家重点实验室,太原030051 [2]中国航天科技集团有限公司中国运载火箭技术研究院,北京100000

出　　处：《计算机与数字工程》2024年第5期1317-1322,1347,共7页Computer & Digital Engineering

基　　金：国家自然科学基金项目(编号:51975541)资助。

摘　　要：论文描述了以EP2C5Q208C8N、AD7621以及CH368为核心的声发射数据采集系统的硬件设计,主要提到了系统的实现原理、硬件模块的组成及相应的电路设计。通过Altera公司的Modelsim仿真对模块电路整体工作的过程进行验证,最后采用GWINSTEK函数发生器产生的无直流偏置幅值为4 Vpp、频率为200 kHz正弦波验证系统的硬件指标,验证发现硬件指标可以满足声发射信号采集所需的16 bit分辨率,3MSPS采样率设计要求。This article describes the hardware design of the acoustic emission data acquisition system with EP2C5Q208C8N,AD7621 and CH368 as the core,and mainly mentions the implementation principle of the system,the composition of hardware mod-ules and the corresponding circuit design.The overall working process of the module circuit is verified by Altera's Modelsim simula-tion.Finally,the GWINSTEK function generator is used to generate a sine wave with no DC bias amplitude of 4 Vpp and a frequen-cy of 200 kHz to verify the hardware indicators of the system.It is verified that the hardware indicators can meet the 16 bit resolution and 3MSPS sampling rate design requirements for acoustic emission signal acquisition.

关 键 词：EP2C5Q208C8N 声发射信号采集 FPGA PCIE 

分 类 号：TP274.2[自动化与计算机技术—检测技术与自动化装置]