Warsaw University of Technology, Institute of Metrology and Biomedical Engineering, 02-525 Warsaw, Poland.
Sensors (Basel). 2019 Jan 16;19(2):337. doi: 10.3390/s19020337.
This article is concerned with the localization of ferromagnetic objects on the basis of magnetovision measurement analysis. In the presented case, the concept of localization is understood as the indication of the , , and coordinates of the magnetic moment of the sought object. Magnetovision measurement provides a much simpler, two-dimensional localization of magnetic anomalies compared to existing active and passive mobile devices, largely based on operator knowledge and experience. In addition, the analysis of the obtained magnetovision measurement, by fusing data with a mathematical model, enables a quantitative assessment of the position of an object in space and the determination of the value and spatial orientation of its magnetic moment vector. The detection and localization method was verified using the certified magnetic moment standard. An additional novelty is the inclusion of the influence of the constant gradient of the external field in the model, which corresponds to disturbing the measurement by the influence of large, but distant, objects. The proposed three-dimensional magnetovision measurement method and its analysis enable the determination of the x, y, and z coordinates; the angular position; and the magnetic moment values of unknown magnetic dipoles in real conditions (effects of disturbances generated by other distant objects and background noise), thus precisely detecting and locating the ferromagnetic object.
本文基于磁光视觉测量分析研究了铁磁物体的定位问题。在本文所研究的案例中，定位的概念被理解为指示所寻求物体磁矩的 、 、 和 坐标。与现有的主动和被动移动设备相比，磁光视觉测量通过融合数据与数学模型，提供了一种更简单的二维磁异常定位方法，在很大程度上基于操作人员的知识和经验。此外，通过对所获得的磁光视觉测量进行分析，可以对物体在空间中的位置进行定量评估，并确定其磁矩矢量的值和空间方向。该检测和定位方法使用经过认证的磁矩标准进行了验证。另一个新颖之处在于在模型中包含了外部磁场恒定梯度的影响，这对应于通过影响大型但遥远的物体来干扰测量。所提出的三维磁光视觉测量方法及其分析能够确定未知磁偶极子的 x、y 和 z 坐标、角位置和磁矩值，在实际条件下（由其他遥远物体产生的干扰和背景噪声的影响）精确地检测和定位铁磁物体。
