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首页> 外文期刊>The Open Electrical & Electronic Engineering Journal >Implementation of a Data Acquisition System for 2×2 Fiber Optic TaperArray Coupled Digital X-ray Detector
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Implementation of a Data Acquisition System for 2×2 Fiber Optic TaperArray Coupled Digital X-ray Detector

机译：2×2光纤TaperArray耦合数字X射线探测器数据采集系统的实现

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Fiber optic taper (FOP) array coupled digital x-ray detector can be an ideal choice for large area high resolutionx-ray imaging, but its data acquisition system is a challenge, for the reasons such as restrictions of hardware design due tothe shape of the FOP array, long distance control requirement in x-ray environment, and arrangement of data transmissionsequence among multiple CCD/CMOS image sensors. A FPGA and ARM based data acquisition system for 22 FOP arraycoupled x-ray detector was implemented in this paper. We have finished all the procedures involving the data acquisitionsystem, including hardware and PCB design, FPGA design, ARM and PC software development, and so on. The dataacquisition process operates in parallel during parameters setting, 4 CMOS image sensors (LUPA-4000) timing driving,and DDR2 SDRAM data buffering, while it works in series when sending data from each FPGA to ARM and from ARMto PC. Experimental results showed that the data acquisition system worked steadily, and whole images of a custom-builtcalibration plate were achieved by butting images of the four individual CMOS image sensors’ in visible light test environment.This work could be a valuable foundation for realization of all kinds of FOP array coupled digital x-ray detectors.
机译：光纤锥形（FOP）阵列耦合数字X射线检测器可能是大面积高分辨率X射线成像的理想选择，但由于诸如传感器的形状而导致硬件设计受限等原因，其数据采集系统是一个挑战。 FOP阵列，X射线环境中的远距离控制要求以及多个CCD / CMOS图像传感器之间的数据传输顺序安排。本文实现了一种基于FPGA和ARM的22 FOP阵列耦合X射线探测器数据采集系统。我们已经完成了涉及数据采集系统的所有程序，包括硬件和PCB设计，FPGA设计，ARM和PC软件开发等。数据采集​​过程在参数设置，4个CMOS图像传感器（LUPA-4000）时序驱动和DDR2 SDRAM数据缓冲过程中并行运行，当从每个FPGA向ARM和从ARMto PC发送数据时，它串行工作。实验结果表明，该数据采集系统运行稳定，通过在可见光测试环境中对接四个单独的CMOS图像传感器的图像来获得定制标定板的整个图像，该工作可能为实现所有这些传感器提供有价值的基础各种FOP阵列耦合数字X射线探测器。

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