| 红外传感器的信号提取和数据采集的设计 |
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| 引用本文： | 薛晨阳,谭秋林,马游春,秦海涛,翟成瑞,张文栋. 红外传感器的信号提取和数据采集的设计[J]. 仪表技术与传感器, 2007, 0(2): 45-46,49 |
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| 作者姓名： | 薛晨阳 谭秋林 马游春 秦海涛 翟成瑞 张文栋 |
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| 作者单位： | 中北大学电子科学与技术系电子测试技术国家重点实验室,山西太原,030051 |
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| 基金项目： | 山西省高级专家项目;国家高技术研究发展计划(863计划);山西省拔尖人才基金 |
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| 摘 要： | 对于解决一类适合低频调制技术，且输出信号非常微弱的红外传感器的信号检测和提取，设计采用选频加窄带通滤波器的方法，再应用中位值平均滤波的数据采集方法很好地解决了对这一类红外传感器信号的数据采集。通过理论和实验证明该设计方法很好地提取了反映变化量性质的有用信号，同时也很好地提高了系统的信噪比，满足了实际情况的需要。
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| 关 键 词： | 红外传感器 低频调制技术 选频放大器 窄带通滤波器 中位值平均滤波法 |
| 文章编号： | 1002-1841（2007）02-0045-02 |
| 修稿时间： | 2006-08-092006-12-15 |
Design of Signal Obtain and Data Acquire about Infrared Sensor |
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| XUE Chen-yang,TAN Qiu-lin,MA You-chun,QIN Hai-tao,ZHAI Cheng-rui,ZHANG Wen-dong. Design of Signal Obtain and Data Acquire about Infrared Sensor[J]. Instrument Technique and Sensor, 2007, 0(2): 45-46,49 |
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| Authors: | XUE Chen-yang TAN Qiu-lin MA You-chun QIN Hai-tao ZHAI Cheng-rui ZHANG Wen-dong |
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| Affiliation: | National Key Lab for Electronic Measurement and Technology,Department of Electronic Science and Technology,North University of China, Taiyuan 030051,China |
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| Abstract: | Considering the signal detecting and obtaining of infrared sensor with a weak output, adapted in low frequency modulating technology, used the method of narrow band-pass filter. Then the way of median average filter was used such that the problem of this kind of infrared sensor data collection was solved well. The method was proved to be able to obtain well the useful signals reflecting the properties of variables, meanwhile improving the signal-to-noise to system, and meeting the demand of actual situation. |
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| Keywords: | infrared sensor low frequency modulating technology frequency selected amplifier narrow band-pass filter the way of median average filter |
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