【作者】 杜毅博；

【导师】 吴淼； 刘建功；

【作者基本信息】 中国矿业大学（北京） ， 机械电子工程， 2014， 博士

【摘要】 针对目前煤巷井下综掘超前探测存在的问题，研究电场激励法煤巷超前探测技术，旨在解决煤巷探测方向性差、预报准确率低等技术难题。论文提出了超前探测系统总体结构及电极的布置方式；根据稳定电流场基本性质，推导点电源场微分方程及边界条件，建立超前探测有限元仿真模型，展开电场激励法超前探测方法研究及各影响因素研究，探索其探测机理；完成逆变调制控制及稳流控制功能设计及相关硬件研发，研制超前探测发射装置原理样机；规划设计接收装置功能及结构，研究斩波放大技术及相敏检波技术，完成接收装置信号调理系统的试制；最后基于超前探测系统原理样机展开功能测试与实验室模拟试验研究，验证超前探测原理，进一步验证了电场激励法用于煤巷综掘超前探测的可行性，为样机的改进提供试验基础。更多还原

【Abstract】 In order to solve the problems of the advanced detection of underground coal excavation, thispaper researches on the advanced detection technology based on electric field excitation method, andaims at resolving technical problems of poor detection direction and low prediction accuracy. Thispaper puts forward the overall structure and electrode arrangement of the advanced detection system;according to the basic properties of stable current field, power point field differential equation andboundary conditions are derived. Through the establishment of the finite element simulation model,the advanced detection method based on electric field excitation and its factors are studied to explorethe detection mechanism; By completing the inverter modulation control and steady flow controlfunction design and related hardware development, this paper developed an transmitter deviceprototype of advanced detector; Through design of receiver’s function and structure and research ofchopper amplification technology and phase-sensitive detection technology, this paper completed thedevelopment of the receiver signal conditioning system. In order to verify the advanced detectionprinciple, this paper conducted functional test and laboratory simulation test on advanced detectionsystem prototype, which further verify the feasibility of electric excitation method used in theunderground coal excavation, and provides experimental basis for the improvement of prototype.更多还原