• 论文
主办单位:煤炭科学研究总院有限公司、中国煤炭学会学术期刊工作委员会
自适应接地电阻的本安型电法监测场源信号发射装置设计
  • Title

    Design of intrinsically safe field source signal transmission device for electrical method monitoring system with adaptive grounding resistance

  • 作者

    王冰纯

  • Author

    WANG Bingchun

  • 单位

    中煤科工西安研究院(集团)有限公司

  • Organization
    China Coal Technology and Engineering Group Xi’an Research Institute (Group) Co., Ltd.
  • 摘要

    电法监测技术因其对煤岩电阻率变化的高灵敏特点而逐步在突水风险较高的矿井进行推广应用,然而由于井下工作面两巷工况环境复杂,不同场源发射监测电极间的接地条件差异较大且随时间变化,难以在整个监测周期内提供稳定的场源信号。设计了一种基于STM32F407的负反馈式本安型电法监测场源信号发射装置,该装置可自适应调节不同发射电极间的接入电阻,具备双重可靠本安保护电路,实现了本安限制条件下场源信号的最大功率稳定发射,既而使场源能量最大化加载至目标监测地质体来获得尽可能强的场源响应信号,提升电法监测系统数据采集质量,提高反演解释的准确性。

  • Abstract

    Electrical monitoring technology is widely applied in mines with high risk of water inrush because of its high sensitivity to the change of coal resistivity. However, due to the complex working environment of the two lanes of the underground working face, the ground conditions between the different field source emission monitoring electrodes are quite different and change with time, so it is difficult to provide stable field source signals in the whole monitoring cycle. A negative feedback type intrinsically safe electrical monitoring device based on STM32F407 is designed. The device can adapt to adjust the access resistance between different transmitting electrodes and has dual reliable intrinsically safe protection circuit. The maximum power stable transmission of the next source signal is realized under the inherent safety restriction condition, and the field source energy is maximized to load into the target monitoring geological body to obtain the strongest possible field source response signal, improve the data acquisition quality of the electrical monitoring system and improve the accuracy of the inversion interpretation.

  • 关键词

    矿井突水评价煤岩电阻率电法监测系统水害风险监测场源STM32F4

  • KeyWords

    evaluation of mine water inrush;coal rock resistivity;electrical method monitoring system;water inrush risk;monitoring field source;STM32F4

  • 基金项目(Foundation)
    国家自然科学基金面上资助项目(42274248);陕西省自然科学基础研究计划面上资助项目(2023-JC-YB-215);天地科技股份有限公司科技创新创业资金专项资助项目(2022-3-TD-KJHZ001) ;山西省揭榜招标资助项目(20201101009-04)
  • DOI
  • 引用格式
    王冰纯. 自适应接地电阻的本安型电法监测场源信号发射装置设计[J]. 煤矿安全,2024,55(2):204−210.
  • Citation
    WANG Bingchun. Design of intrinsically safe field source signal transmission device for electrical method monitoring system with adaptive grounding resistance[J]. Safety in Coal Mines, 2024, 55(2): 204−210.
  • 图表
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主办单位:煤炭科学研究总院有限公司 中国煤炭学会学术期刊工作委员会

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