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| 高速低能X射线工业CT数据采集与传输 | |
| 引用本文： | 杨雷,高富强,李岭,陈研,栗忍.高速低能X射线工业CT数据采集与传输[J].计算机应用,2014,34(11):3361-3364. |
| 作者姓名： | 杨雷 高富强 李岭 陈研 栗忍 |
| 作者单位： | 1. 重庆大学 自动化学院,重庆 400044; 2. 工业CT无损检测教育部工程研究中心(重庆大学),重庆 400044; 3. 中国船舶重工集团公司 江苏自动化研究所,江苏 连云港 222006 4. 重庆真测科技股份有限公司,重庆 400044 |
| 基金项目： | 国家重大科学仪器设备开发专项，重庆市基础与前沿研究计划项目 |
| 摘 要： | 为满足低能X射线工业计算机断层(CT)扫描成像系统在快速扫描及大批量数据传输方面的应用需求,设计一种低能X射线工业CT高速数据采集与传输系统。系统选用DT公司X-CARD 0.2-256G为探测器,将高速时分复用电路与数据缓存乒乓操作相结合,以适应高速模数转换的需要;采用以现场可编程门阵列(FPGA)为主控芯片的千兆以太网设计,以满足多通道数据的高速传输要求。实验结果表明,系统数据采集速度达到1MHz,以太网传输速度达到926Mb/s,动态范围大于5000。该系统可有效缩短低能X射线探测扫描时间,可满足更多通道的数据传输要求。 |
| 关 键 词： | 工业CT 数据采集 以太网 低能X射线 现场可编程门阵列 |
| 收稿时间： | 2014-05-26 |
| 修稿时间： | 2014-07-01 |
High-speed data acquisition and transmission system for low-energy X-ray industrial CT |
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| YANG Lei , GAO Fuqiang , LI Ling , CHEN Yan , LI Ren.High-speed data acquisition and transmission system for low-energy X-ray industrial CT[J].journal of Computer Applications,2014,34(11):3361-3364. | |
| Authors: | YANG Lei GAO Fuqiang LI Ling CHEN Yan LI Ren |
| Affiliation: | 1. Automation College, Chongqing University, Chongqing 400044, China; 2. Engineering Research Center of Industrial CT Non-destructive Testing, Ministry of Education(Chongqing University), Chongqing 400044, China; 3. Jiangsu Automation Research Institute, China Shipbuilding Industry Corporation, Lianyungang Jiangsu 222006, China; 4. Chongqing Zhence Science and Technology Company Limited, Chongqing 400044,China |
| Abstract: | To meet the application demand of high speed scanning and massive data transmission in industrial Computed Tomography (CT) of low-energy X-ray, a system of high-speed data acquisition and transmission for low-energy X-ray industrial CT was designed. X-CARD 0.2-256G of DT company was selected as the detector. In order to accommodate the needs of high-speed analog to digital conversion, high-speed time division multiplexing circuit and ping-pong operation for the data cache were combined; a gigabit Ethernet design was conducted with Field Programmable Gate Array (FPGA) selected as the master chip,so as to meet the requirements of high-speed transmission of multi-channel data. The experimental result shows that the speed of data acquisition system reaches 1MHz, the transmission speed reaches 926Mb/s and the dynamic range is greater than 5000. The system can effectively shorten the scanning time of low energy X-ray detection, which can meet the requirements of data transmission of more channels. |
| Keywords: | Industrial Computed Tomography (ICT) data acquisition Ethernet low-energy X-ray Field Programmable Gate Array (FPGA) |
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