| 通用串行总线在测井模拟信号采集中的应用 |
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| 引用本文： | 卢俊强,鞠晓东. 通用串行总线在测井模拟信号采集中的应用[J]. 中国石油大学学报(自然科学版), 2005, 29(5) |
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| 作者姓名： | 卢俊强 鞠晓东 |
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| 作者单位： | 中国石油大学,资源与信息学院,北京,102249 |
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| 摘 要： | 设计了一种基于通用串行总线(USB)的用于采集测井模拟信号的数据采集系统。介绍了该总线的特点及其优越性,对用该总线实现模拟信号采集的整个组成部分做了详细的说明。该系统设计包括硬件设计、单片机固件设计以及设备驱动程序设计和用户应用程序设计。对USB驱动程序栈和应用程序中打开USB设备的方法给予了简要分析。测试结果表明,该系统实测精度超过13位二进制,其控制逻辑灵活,便于升级扩展。
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| 关 键 词： | 通用串行总线 模拟信号 数据采集 固件 复杂可编程逻辑器件 |
Application of universal serial bus in well logging analog data acquisition |
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| LU Jun-qiang,JU Xiao-dong. Application of universal serial bus in well logging analog data acquisition[J]. Journal of China University of Petroleum (Edition of Natural Sciences), 2005, 29(5) |
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| Authors: | LU Jun-qiang JU Xiao-dong |
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| Abstract: | A kind of data acquisition system based on universal serial bus(USB) was designed which was used to acquire well logging analog data.Characteristics and advantages about USB were discussed.The whole components by which realize analog signal acquisition were analyzed.The system is composed of hardware design,firmware design,device driver and application software design.USB driver stack and the method of opening a USB device were also analyzed.The results show that the precision of the system is not less than 13 bits,and its control function is flexible,and can be extended easily. |
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| Keywords: | universal serial bus analog signal data acquisition firmware complex programmable logic device |
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