| 基于51单片机量程自动转换系统设计 |
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| 引用本文： | 赵 群. 基于51单片机量程自动转换系统设计[J]. 现代电子技术, 2014, 0(5): 140-142 |
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| 作者姓名： | 赵 群 |
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| 作者单位： | 渤海船舶职业学院,辽宁 葫芦岛125003 |
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| 摘 要： | 仪器仪表数据采集之前,往往需要经过量程控制电路衰减或放大,使其电压处于适合于取得较高A/D转换精度的范围之内。系统利用单片机与多路选择器及A/D转换器实现仪器仪表量程的自动转换过程,提高测量仪器仪表智能化程度。
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| 关 键 词： | 量程自动控制 CD4051 多路选择器 A/D转换 |
Design of automatic range conversion system based on 51 MCU |
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| ZHAO Qun. Design of automatic range conversion system based on 51 MCU[J]. Modern Electronic Technique, 2014, 0(5): 140-142 |
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| Authors: | ZHAO Qun |
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| Affiliation: | ZHAO Qun (Bohai Shipbuilding Vocational College, Huludao 125003, China) |
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| Abstract: | Before data collection by instruments,the attenuation or amplification of circuits always need to be range con-trol,to make the voltage in a suitable range for higher A/D conversion accuracy. The MCU,multiplexer and A/D converter are used to achieve instrumentation range automatic conversion process,to improve the intelligent degree of measurement instrument. |
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| Keywords: | automatic range control CD4051 multiplexer A/D conversion |
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