| 提高A/D转换精度的一种方法 |
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| 引用本文： | 刘逊.提高A/D转换精度的一种方法[J].西安工程科技学院学报,1992(1). |
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| 作者姓名： | 刘逊 |
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| 作者单位： | 西安纺织工业学院自动化系 |
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| 摘 要： | 本文提出一种提高A/D转换精度的方法。经高倍放大的模拟信号,若超出A/D转换器的输入范围,可由计算机控制,用固定电压分档抵消,使低消后的差值处于A/D转换器输入范围,A/D转换器仅对差值进行转换。转换完成后,用计算机对其结果进行运算处理,给出高精度的最终转换结果。
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| 关 键 词： | 分辨率 A/D转换 多路选择器 |
A Method of Precisely Converting an Analog Signal Into A D/g/tal Signal |
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| Liu Xun.A Method of Precisely Converting an Analog Signal Into A D/g/tal Signal[J].Journal of Xi an University of Engineering Science and Technology,1992(1). |
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| Authors: | Liu Xun |
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| Institution: | Electric and Electronic Engineering Department |
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| Abstract: | This paper presents that when an analog signal is over A/D bound, onecan use a certain voltige to counteract it. Then the difference is transfered to A/D. The A/D converts this difference into a digital signal. A computer Samples the digital signal and processes it to give an exact result. Using thismethod, one can precisely convert an analog signal which varies within a wide range into a digital signal. |
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| Keywords: | Resoeution Analog-to-digital Conversion Multiplexor |
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