【摘要】 目前数据采集记录仪体积较大,采样频率低,记录通道少,记忆空间易受干扰而多变。本系统以Xilinx的Virtex-5系列现场可编程门阵列(FPGA)芯片XC5VLX30作为核心控制单元;采用ADI公司的高速AD进行模数转换;外围采用多片并口存储器作为存储单元,延长记录时间。本系统能够采样16通道以上、精确度8位模拟信号,采样速率能达500 Mbps以上,并把采样数据无线传输给上位机进行处理。更多还原

【Abstract】 Nowadays, the data acquisition recorder is featured with large volume, low sampling frequency, and less recording channels. Its memory space is changeable and susceptible to interference. The core control of this system is Xilinx Virtex-5 XC5VLX30 series Field-Programmable Gate Array(FPGA) chip. It adopts the high-speed AD of ADI Company to accomplish analog-to-digital conversion. Peripheral unit employs multiple parallel memories as storage, which can extend the recording time. The proposed system is able to sample more than 16 channels of analog signals with 8-bit precision. The sampling rate can reach above 500 Mbps. And the sampled data can be transferred wirelessly to the PC for processing.更多还原