| 基于STC12C5A60S2与AD620的小信号采集系统 |
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| 引用本文： | 崔国丽,车喜龙.基于STC12C5A60S2与AD620的小信号采集系统[J].电子设计工程,2012,20(11):112-114. |
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| 作者姓名： | 崔国丽 车喜龙 |
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| 作者单位： | 长安大学信息工程学院,陕西西安,710064 |
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| 摘 要： | 在测控领域中,经常遇到监测对象输出信号较小,难以直接采集,一般都需要将其放大后再做处理。介绍了一种小信号采集系统的实现方法,利用具有A/D转换功能的单片机STC25A60S2和具有精确放大功能的易用放大器AD620实现了最小系统,并论述了系统设计与实现,详细介绍了采集小信号的过程,并给出了实际应用的例子,以及小信号采集在相关领域的应用。
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| 关 键 词： | STC12C5A60S2 信号采集 信号调理 A/D转换 |
STC12C5A60S2 and AD620-based acquisition systems for small signal |
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| CUI Guo-li,CHE Xi-long.STC12C5A60S2 and AD620-based acquisition systems for small signal[J].Electronic Design Engineering,2012,20(11):112-114. |
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| Authors: | CUI Guo-li CHE Xi-long |
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| Affiliation: | (Institute of Informstion Engineering,Chang’an Univercity,Xi’an 710064,China) |
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| Abstract: | Frequently encountered in the measurement and control field monitoring object output signal is small,it is difficult to direct acquisition,generally need to enlarge it and then deal with.The article describes a signal acquisition system,using the A / D conversion function the microcontroller STC25A60S2 and ease of use with accurate zoom function amplifier AD620 to achieve a minimum system,and discusses the system design and implementation,and details of the acquisitionsmall-signal process,and gives examples of practical applications,as well as small-signal acquisition in the relevant field. |
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| Keywords: | STC 12C5A60S2 acquisition of signal signal condition A/D conversion |
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