范文编号:JD898 附开题报告,任务书,外文翻译,范文字数:9215,页数:26 摘 要
关键词: AT89C51;数字电压表;A/D转换;ADC0809
Abstract Designing of Simple Digital Voltmeter In modem measuring technology, the digital voltmeter is often used in site measuring. The control system of digital voltmeter that described in this paper uses AT89c51, and A/D converter uses ADC0809 to perform the design of the digital voltmeter. The voltmeter has simple electrical circuit,few elements and low cost .The meter has the capability of measuring 8 voltage inputs from 0 to 5 volt at one time, and displays the measurements in turn or only displays one route that selected. Key words: AT89c51;digital voltmeter; A/D conversion;ADC0809
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