基于六棱台全张量磁梯度探头的目标定位方法

Target Location Method Based on Six-sided Pyramidal Full Tensor Magnetic Gradient Probe

超导磁力仪具有灵敏度高、抗干扰能力强的特点,利用超导磁力仪和超导磁梯度计构建六棱台全张量磁梯度探头,提出了一种基于六棱台全张量磁梯度探头的磁性目标定位方法。首先建立了六棱台传感器分布的几何模型,然后计算了传感器测量值与磁梯度张量值之间的关系,最后提出了目标定位方法,通过仿真实验分析可得,论文提出的基于六棱台全张量磁梯度探头的定位方法定位精度高,影响定位效果的主要因素为超导磁力仪的测量精度和探头与目标之间的距离。

Superconducting magnetometer has the characteristics of high sensitivity,strong anti-interference ability.Six-sided pyramidal full tensor magnetic gradient probe is constructed with superconducting magnetometer and superconducting magnetic gradiometer,and a location method based on the six-sided pyramidal full tensor magnetic gradient probe is proposed in this paper.Firstly,the geometric model of the six-sided pyramidal full tensor magnetic gradient probe is established,and then the relationship between measurement value of the sensor and magnetic gradient tensor is calculated,in the end,the target locating method is put forward.The simulation result show that this method can locate the target precisely,and the main factors influencing the effect of positioning are the measurement precision of the superconducting magnetometer and the distance between the probe and the target.