摘要
在当前特种测试系统国产化替代趋势下,针对传统冲击波超压测试系统存在的安全性低、进口依赖性强和自主可控性差等技术问题,提出了一款以国产复杂可编程逻辑器件(Complex Programmable Logic Device,CPLD)和ARM(Advanced RISC Machine)处理器为核心架构的冲击波超压测试系统。其中,ARM单元负责响应系统工作循环指令,CPLD则控制A/D转换模块实现采样频率高达1 MHz的数据采集和对内外触发逻辑的精确判断,数据转换结果经由外部存储器控制器(External Memory Controller,EXMC)传输并存储至eMMC存储器中,最终通过以太网传输至上位机显示。经现场试验表明,测试系统具有良好的可靠性,能够在复杂测试环境下实现对冲击波超压信号高保真采集与记录存储,为动态数据采集提供了一种切实可行的解决方案,推动了关键测试设备国产化替换进程。
Under the current trend of domestic substitution of special testing systems,a shock wave overpressure testing system with domestic CPLD(Complex Programmable Logic Device)and ARM as the core architecture is proposed to address the technical issues of low safety,strong import dependence,and poor autonomous controllability of traditional shock wave overpressure testing systems.Among them,the ARM unit is responsible for responding to the system’s work cycle instructions,while the CPLD controls the A/D conversion module to achieve data collection with a sampling frequency of up to 1 MHz and precise judgment of internal and external triggering logic.The data conversion results are transmitted through EXMC(External Memory Controller)and stored in eMMC memory,and finally transmitted to the upper computer for display through Ethernet.Field experiments have shown that this type of testing system has good reliability and can achieve high-fidelity acquisition and recording storage of shock wave overpressure signals in complex testing environments.It provides a practical and feasible solution for dynamic data acquisition and promotes the process of domestic replacement of key testing equipment.
作者
周浩
毕荣
何汇成
余俊斌
穆继亮
ZHOU Hao;BI Rong;HE Huicheng;YU Junbin;MU Jiliang(National Key Laboratory for Electronic Measurement Technology,North University of China,Taiyuan 030051,China;Key Laboratory of Instrumentation Science and Dynamic Measurement,Ministry of Education,North University of China,Taiyuan 030051,China)
出处
《测试技术学报》
2024年第3期248-255,共8页
Journal of Test and Measurement Technology
基金
国家自然科学基金资助项目(62101513)。
关键词
国产化
冲击波超压测试系统
数据采集
复杂可编程逻辑器件
localization
shock wave overpressure testing system
data acquisition
complex programmable logic device(CPLD)
