This paper describes the system structure and working principle, to build a DC mV meter hardware and software system design of data acquisition and processing and display part of the process.

本文阐述了系统的结构和工作原理，搭建了直流毫伏表的硬件电路，并设计了软件系统中的数据采集处理和显示部分的程序。

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Finally through to the entire data acquisition and the processing system experimental debugging, has confirmed the system accuracy and the stability.

最后通过对整个数据采集与处理系统的试验调试，验证了系统的正确性与稳定性。

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Real-time data acquisition and data processing is the key issue of measuring system.

实时数据采集与处理是测量系统中的一个关键问题。

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