| 新型瓦斯检测系统硬件设计 |
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| 引用本文： | 李长诗,张黎. 新型瓦斯检测系统硬件设计[J]. 煤矿机械, 2012, 33(8): 235-236 |
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| 作者姓名： | 李长诗 张黎 |
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| 作者单位： | 郑州轻工业学院机电工程学院,郑州,450002 |
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| 摘 要： | 针对矿用瓦斯检测系统中使用传感器的特点以及工作环境,加入温度、湿度数据采集环节,在软件算法方面提高测量准确度。设计中主要采用高共模抑制比的差分放大电路、开关电容滤波器提高信号源的精确度,同时抑制电源噪声以提高系统抗干扰性。
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| 关 键 词： | 传感器 放大电路 RS485 |
New Hardware Design of Gas Detection System |
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| LI Chang-shi , ZHANG Li. New Hardware Design of Gas Detection System[J]. Coal Mine Machinery, 2012, 33(8): 235-236 |
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| Authors: | LI Chang-shi ZHANG Li |
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| Abstract: | This mine gas detection system added temperature and humidity sensor to adapt mine gas detection sensor and coal environment,and use a program to improve veracity.The new system use differential amplifier and switched-capacitor filter to improve veracity of the signal source,and restrain power noise to enhance anti-interference of the system. |
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| Keywords: | sensor amplification circuit RS485 |
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