基于高速采集技术的核信号采集系统设计
Multichannel spectrometer based on the he Design of Nuclear Signal Acquisition System Based on the Technology of High-speed data acquisition
描述了一种基于高速采集技术的核信号采集系统设计方案。利用ADC时间交替并行采样技术实现了一种通用的、用相对较低速的 ADC 器件实现较高采样频率的数据采集系统的设计方法。所设计的采集系统以FPGA为核心器件,通过分时工作的两片ADC作为一个数据采集通道进行交替采样。在FPGA中对两路采样信号进行失配误差校准后,发送给多道脉冲幅度分析器,最后利用上位机软件进行数据处理和绘图显示。实验结果验证了用两片32 MHz采样频率的 ADC 器件并联工作,该系统能够达到 64MHz 的采样频率,实现核信号的实时、高效采集。
high-speed nuclear signal acquisition system is introduced based on Technology of High-speed data acquisition. The use of time-interleaved ADC parallel sampling technology implements a generic, with a relatively low speed ADC device to achieve higher sampling frequency of the data acquisition system design method. The acquisition system is designed with FPGA as the core device, through time-sharing work of two pieces of ADC as a data collection channels in alternating sampling. After the two ways of the sampling signal were mismatch error calibrated in the FPGA, the result were sent to the multi-channel pulse amplitude analyzer, Finally use the PC software for data processing and graphics display. The experimental results show that with two pieces of 32 MHz sampling frequency of the parallel operation, the system can achieve sampling frequency of 64 MHz, to realize the collection nuclear signal in real time and high efficiency.
周靖、方方、赵祥
粒子探测技术、辐射探测技术、核仪器仪表
核信号分时交替ADC采样FPGA
Nuclear signalime-Interleaved ADC samplingFPGA
周靖,方方,赵祥.基于高速采集技术的核信号采集系统设计[EB/OL].(2014-03-04)[2025-08-25].http://www.paper.edu.cn/releasepaper/content/201403-103.点此复制
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