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针对传统的煤层煤与瓦斯突出鉴定用的压力表无法实时准确记录瓦斯压力及数据保密的问题,设计了一种基于ADUC845的防拆卸、高精度、低功耗的煤层瓦斯压力监测仪,介绍了监测仪与传统压力表相比的优点,给出了监测仪的硬件结构及软件设计方案。该监测仪体积小、重量轻、操作简便,能够实现瓦斯压力的在线监测并提供200-1000Hz频率信号输出接口,方便接入井下监控系统,同时该监测仪系统电路采用低功耗和本安设计,能够在不更换电池的情况下在井下长时间可靠地工作。
Aiming at the problem that traditional pressure gauge used for coal seam and gas outburst identification can not accurately record gas pressure and data confidentiality in real time, an anti-demolition, high-precision and low-power coal seam gas pressure monitor based on ADUC845 is introduced Monitor the advantages compared with the traditional pressure gauge, gives the monitor hardware structure and software design. The monitor is small in size, light in weight and easy to operate. It can realize on-line monitoring of gas pressure and provide 200-1000Hz frequency signal output interface for easy access to downhole monitoring system. At the same time, the monitor system circuit adopts low power consumption and intrinsically safe design , Can work reliably downhole for a long time without changing the battery.