| 液晶显示数字电压表的设计 |
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| 引用本文： | 翟蓓蓓,孙运强,姚爱琴.液晶显示数字电压表的设计[J].山西电子技术,2011(5):22-24. |
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| 作者姓名： | 翟蓓蓓 孙运强 姚爱琴 |
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| 作者单位： | 中北大学仪器科学与动态测试教育部重点实验室; |
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| 摘 要： | 在现代检测技术中,常常需要用数字电压表进行现场检测,将检测到的数据送入到微计算机系统,完成计算、存储、控制和显示等功能。因此,设计了一种实用的液晶显示数字电压表,其不仅能够对直流电压进行测量,还可以方便地进行量程的自动转换、与计算机通信等功能,并在液晶显示器上显示。该液晶显示数字电压表采用AT89S52单片机为控制平台,重点设计了量程自动转换、A/D转换和液晶显示等硬件功能电路和系统软件。现场实验显示,该液晶显示数字电压表具有转换速度快、可靠性高、性能稳定等优点,具有很好的使用价值。
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| 关 键 词： | 数字电压表 单片机 量程自动转换 A/D转换器 液晶显示 |
Design of Liquid Crystal Display Digital Voltmeter |
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| Zhai Bei-bei,Sun Yun-qiang,Yao Ai-qin.Design of Liquid Crystal Display Digital Voltmeter[J].Shanxi Electronic Technology,2011(5):22-24. |
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| Authors: | Zhai Bei-bei Sun Yun-qiang Yao Ai-qin |
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| Affiliation: | Zhai Bei-bei,Sun Yun-qiang,Yao Ai-qin(Key Lab for Instrument Science and Dynamic Test of The Ministry of Education,North University of China,Taiyuan Shanxi 030051,China) |
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| Abstract: | In modern measuring technology,it is often required to conduct site measuring with a digital voltmeter.The data measured will then be input into the micro-computer system to execute such functions like calculating,storing,controlling and displaying.The paper mainly discusses the design principle and chief techniques of a LCD digital voltmeter.The control system of liquid crystal display digital voltmeter described in this paper uses AT89S52 SC computer to fulfill the designing of the software as well as the... |
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| Keywords: | digital voltmeter SC computer Auto Switch Measure Bound A/D conversion LCD |
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