基于三分量法的地下金属管线探测仪结构设计

Structure Design of Underground Metal Pipeline Detector Based on Three Component Method

目前现有的探测器工作原理多数是通过电场源激励接收电磁波信号,电场和磁场的分布是结构设计的理论前提,因此分析电性分布参数与地下管线在探测技术中的作用和影响,建立数学模型剖析载流导体与周围环境电性参数的关系,通过空间三维向量磁场强度分布情况设计了线圈搭建的模型与接收器在二维空间的结构设计,组成双球面空间结构。针对磁场强度分布不平衡性,用数学模型作为理论依据,提出一种新型结构进行补偿,进一步提高定位精度。

At present,most of the working principles of the existing detectors are to receive electromagnetic wave signals through the excitation of electric field source.The distribution of electric field and magnetic field is the theoretical premise of structural design.Therefore,the function and influence of electrical distribution parameters and underground pipelines in detection technology were analyzed.A mathematical model was established to analyze the relationship between current carrying conductor and surrounding environmental electrical parameters,and the spatial three-dimensional vector magnetic field intensity distribution was adopted.The model of the coil and the structure design of the receiver in two-dimensional space were designed.In view of the imbalance of the distribution of the magnetic field strength,a new structure was put forward to compensate the imbalance with the mathematical model as the theoretical basis,so as to further improve the positioning accuracy.