| 大气恒流采样系统的设计与实现 |
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| 引用本文： | 蒋舸扬,张玉钧,郑朝晖,王亚平,刘文清. 大气恒流采样系统的设计与实现[J]. 真空电子技术, 2002, 0(4): 48-50 |
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| 作者姓名： | 蒋舸扬 张玉钧 郑朝晖 王亚平 刘文清 |
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| 作者单位： | 中国科学院安徽光学精密机械研究所,安徽,合肥,230031 |
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| 摘 要： | 介绍在新型环境检测仪器 β射线空气质量PM10 自动监测仪中 ,如何利用质量流量控制器实现对大气的恒流采样 ,并着重阐述了如何利用AT89C5 5为核心的单片机结合外围数模 /模数转换芯片 ,从电路和软件上实现这一功能的具体应用方法。
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| 关 键 词： | 质量流量控制器 恒流采样 β射线法 数模/模数转换 |
| 文章编号： | 1002-8935(2002)04-0048-03 |
| 修稿时间： | 2002-03-11 |
Design and Implement of a Constant Air Flow Sample System |
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| JIANG Ge yang,ZHANG Yu jun,ZHENG Zhao hui,WANG Ya ping,LIU Wen qing. Design and Implement of a Constant Air Flow Sample System[J]. Vacuum Electronics, 2002, 0(4): 48-50 |
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| Authors: | JIANG Ge yang ZHANG Yu jun ZHENG Zhao hui WANG Ya ping LIU Wen qing |
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| Abstract: | This article described a new kind of environment protection instrument for automatic monitoring the PM 10 ' s concentration in ambient air, and how to use a mass flow controler (MFC) to take a sample of constant air flow.The design details of the hardware circuit and software to control the MFC,which is based on a single chip computer using AT89C55 as its CPU with peripheral AD/DA conversion chips,as well as the implementation methods are also discussed. |
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