| 一种量程自动转换高精度数字电压表的设计 |
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| 引用本文： | 杨增汪,陈斯,戴新宇. 一种量程自动转换高精度数字电压表的设计[J]. 自动化与仪表, 2011, 26(11): 12-15 |
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| 作者姓名： | 杨增汪 陈斯 戴新宇 |
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| 作者单位： | 徐州师范大学物理与电子工程学院,徐州,221116 |
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| 基金项目： | 江苏省高校产业化基金，徐州师范大学校科研基金 |
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| 摘 要： | 设计了一种以AT89S52单片机为核心、A/D转换芯片LTC1865为基础,结合量程自动转换电路的高精度数字电压表,可以对(0～400)V电压范围的电压进行量程自动转换的精确测量.测试结果表明,该电压表具有测量精度高、性能稳定、转换速度快及显示清晰度高等特点,有很好的实际应用价值.
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| 关 键 词： | 数字电压表 AT89S52 LTC1865 量程自动转换 高精度 |
Design of Digital Voltmeter with High Precision and Automatic Range Conversion |
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| YANG Zeng-wang,CHEN Si,DAI Xin-yu. Design of Digital Voltmeter with High Precision and Automatic Range Conversion[J]. Automation and Instrumentation, 2011, 26(11): 12-15 |
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| Authors: | YANG Zeng-wang CHEN Si DAI Xin-yu |
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| Affiliation: | YANG Zeng-wang,CHEN Si,DAI Xin-yu(School of Physics and Electronic Engineering,Xuzhou Normal University,Xuzhou 221116,China) |
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| Abstract: | This paper presents the design proposal of high precision digital voltmeter,by taken single chip microcontroller AT89S52 as the core,A/D converter chip LTC1865 as the foundation,and combined with the circuit of automatic range conversion.The voltmeter can measure the voltage range from 0V to 400V precisely and automatically.The test results show that the voltmeter has the features such as:high precision of measuremont,stable performance,fast conversion and high definition of display,and has the very good pr... |
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| Keywords: | digital voltmeter AT89S52 LTC1865 automatic range conversion high precision |
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