| 简易可燃气体浓度测试仪设计 |
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| 引用本文： | 潘小青,黎定国,刘红兵,刘庆成.简易可燃气体浓度测试仪设计[J].华东地质学院学报,2007,30(3):257-260. |
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| 作者姓名： | 潘小青 黎定国 刘红兵 刘庆成 |
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| 作者单位： | 东华理工大学 江西抚州344000 |
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| 基金项目： | 东华理工学院硕士基金项目(DHS0418) |
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| 摘 要： | 氧化锡气体传感器吸附可燃性气体可使其电导率发生变化,这种电导率的变化以输出电压的形式取样,就可检测出探测气体的类型和浓度。采用TGS813气体传感器,利用自制的气体浓度配制器得到不同浓度的不同气体,将传感器闭封于待测气体中由测试电路得到感器的响应特性和温度特性。依据传感器的响应特性设计合适的传感器调理电路,应用高性能单片机P89LPC938实现对可燃性气体浓度的测量和温度显示。
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| 关 键 词： | 气体传感器 可燃气体 P89LPC938 测试仪 |
| 文章编号： | 1000-2251（2007）03-0257-04 |
| 修稿时间： | 2007-04-02 |
A Design of Combustible Gasmetry Instrument |
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| PAN Xiao-qing,LI Ding-guo,LIU Hong-bing,LIU Qing-cheng.A Design of Combustible Gasmetry Instrument[J].Journal of East China Geological Institute,2007,30(3):257-260. |
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| Authors: | PAN Xiao-qing LI Ding-guo LIU Hong-bing LIU Qing-cheng |
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| Institution: | East China Institute of Technology, Fuzhou, JX 344000, China |
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| Abstract: | Tin dioxide gas sensor is widely used in detecting gas concentration by its electric conductivity change when exposed to flammable gases.The gas sensor can absorbed combustible gases and induced the surface resistivity fall of material.The conductivity change of the sensor can be outputted by the voltage of testing circuit.In this paper,concentration of gases is obtained by a recording meter and the gas sensor is airproof in a vessel.Based on the property of TGS813 and its sensitivity to temperature,A gasmetry instrument for combustible gas is designed for mesureing gas concentration and temperature via microcontroller system P89LPC938. |
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| Keywords: | gas sensor combustible gas P89LPC938 gasmetry instrument |
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