| 高速双通道A/D数据采集系统及其应用 |
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| 引用本文： | 周甫方,李琳,侯优学,林伟强,石新海,胡毅旭,张源,郑清交.高速双通道A/D数据采集系统及其应用[J].汕头大学学报(自然科学版),2002,17(2):28-34. |
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| 作者姓名： | 周甫方 李琳 侯优学 林伟强 石新海 胡毅旭 张源 郑清交 |
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| 作者单位： | 汕头大学物理学系,汕头,515063 |
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| 摘 要： | 针对大学物理实验中手动逐点测量数据的落后现状 ,设计了高速双通道数据采集系统 ,能实现在手动调节或自动扫描自变量的同时 ,由计算机自动记录自变量和函数的双通道电压数值 .其特点是利用 DMA(直接数据通道传送 )接口技术 ,充分发掘 A/ D转换芯片的固有高速性能 .本方法对大学物理实验手段的提高具有实用价值
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| 关 键 词： | A/D转换 A/D1674 转换时序 DMA控制 接口时序 |
| 文章编号： | 1001-4217(2002)02-0028-07 |
| 修稿时间： | 2002年3月1日 |
A High-Speed Two-Channel A/D Data Acquisition System and Its Application |
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| Zhou Fufang,Li Lin,Hou Youxue,LinWeiqiang,Shi Xinhai,Hu Yixu,Zhang Yuan,Zheng Qingjiao.A High-Speed Two-Channel A/D Data Acquisition System and Its Application[J].Journal of Shantou University(Natural Science Edition),2002,17(2):28-34. |
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| Authors: | Zhou Fufang Li Lin Hou Youxue LinWeiqiang Shi Xinhai Hu Yixu Zhang Yuan Zheng Qingjiao |
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| Abstract: | In view of the backwardness in manual recording of measurement data point by point in experimentation in college physics,a high speed two channel A/D data acquisition system is developed which,while performing manual regulation or automatic scanning of independent variables,implements automatic recording of the two channel voltage of the independent and dependent variables by the computer with the help of DMA technique to give full play to the intrinsic high speed attributes of the A/D chip.The design presented by this paper is of practice use in improving laboratory facilities for college physics. |
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| Keywords: | A/D conversion AD1674 conversion sequence DMA(direct mode access)control interface sequence |
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