电场激励法超前探测原理及仪器发射部分研制  

The advance detection principle of electric- field excitation method and the development of instrument's emission part

作　　者：张伟杰[1] 罗建国[1] 胡兴志[1] 孙辉辉[1] 

机构地区：[1]华北科技学院机电工程学院,北京东燕郊101601

出　　处：《华北科技学院学报》2016年第1期81-85,共5页Journal of North China Institute of Science and Technology

基　　金：中央高校基本科研业务费资助(3142015098)

摘　　要：为了丰富和提高煤矿巷道电法超前探测的手段和效率,利用煤岩激发极化和电场同性相斥的基本性质,分析在双频激电电流作用下的约束电场的百分频率效应,得出前方围岩特性来间接判断地质异常。所研制的超前探测仪发射部分采用整流隔离稳压和模块化设计,示波器得到的发射电流波形为双频波,强度可方便调节,达到了设计要求。In order to enrich detection means and improve the efficiency of electrical method in advanced detection. We can obtain the characteristics of front- surrounding rock and to indirectly determine the geological anomaly by analyzing the percent frequency effect of dual- frequency induced polarization current limiting electric field based on the basic properties of excitation polarization and isotropic electric field repel in rock.The advance detection instrument＇s emission part adopts isolation rectification regulator and modular design.The transmitted current waveform is obtained by the oscilloscope. The current intensity can be easily adjusted without pole. The design requirements are reached.

关 键 词：电场激励法 超前探测 百分频率效应 隔离稳压 双频波 

分 类 号：TD745[矿业工程—矿井通风与安全]