| 数字直流电压表改造 |
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| 引用本文： | 李周平.数字直流电压表改造[J].杨凌职业技术学院学报,2010,9(2):52-54. |
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| 作者姓名： | 李周平 |
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| 作者单位： | 陕西国防工业职业技术学院电子工程系,户县,710300 |
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| 摘 要： | 作为一种基础性的测量仪表,电压表在科研与生产中有着广泛的应用。本文以AT89S51单片机和AD678数模转换芯片为核心,应用最小化设计方法,进行电压采样测量电路设计,通过MAX232芯片实现了单片机与PC机之间的数据通信,最终使电压测量数据显示于PC机上。经实际制作电路测试,验证了本设计的可行性与实用性。
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| 关 键 词： | 电压表 单片机 数模转换 最小化设计 |
The Reconstruction of Direct Current Digital Voltmeter |
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| LI Zhou-ping.The Reconstruction of Direct Current Digital Voltmeter[J].Journal of Yangling Vocational & Technical College,2010,9(2):52-54. |
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| Authors: | LI Zhou-ping |
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| Institution: | LI Zhou-ping (Department of Electronics,Shaanxi Institute of Technology,Huxian,Shaanxi 710300,China) |
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| Abstract: | The voltmeter,a basic metrical facility,is universally used in research and production.The circuit is projected for the measurement of voltage with the minimum design method,employs the AT89S51 and AD678 as its kernel of the voltage sampling,realizes the communication between the AT89S51 and PC through the MAX232,and displays the data on the PC screen.The validity and practicality of the circuit is proved by the demonstration. |
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| Keywords: | voltmeter single chip microcomputer digital-to-analog conversion minimum design |
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