磁偶极子单自由度定位河床冲刷监测方法研究
RESEARCH ON SCOUR MONITORING METHOD OF SINGLE DEGREE OF FREEDOM WITH MAGNETIC DIPOLE
杨则英 1孙英琳 1王成赫1
作者信息
- 1. 山东大学土建与水利学院,济南 250061
- 折叠
摘要
为解决传统磁偶极子定位方法依磁力梯度张量反演磁偶极子位置,所需测量矩阵复杂的弊端,从磁偶极子空间分布模式出发,仅以单自由度的磁偶极子在某点处所产生的磁场三分量来定位磁偶极子.依据磁偶极子空间分布模式,推导单自由度磁偶极子的反演方程,实现了磁偶极子单自由度定位.在此基础上,基于推导的反演方程,将磁偶极子单自由度定位方法与重力驱动河床冲刷监测方法相结合,提出了一种具有普适性的河床冲刷监测方法,该方法可以通过单自由度反演公式反映河床冲刷情况.
Abstract
In order to solve the problem of complex measurement matrix required by the traditional magnetic dipole location method to retrieve the magnetic dipole position according to the magnetic gradient tensor,the magnetic dipole is located only by the three-component magnetic field generated by the magnetic dipole with a single degree of freedom.According to the spatial distribution pattern of the magnetic dipole,the inversion equation of the single-DOF magnetic dipole is derived,and the single-DOF magnetic dipole location is realized.On this basis,based on the derived inversion equation,a universal channel scour monitoring method is proposed by combining the magnetic dipole single-DOF positioning method with the gravity-driven channel scour monitoring method,which can reflect the channel scour situation through the single-DOF inversion formula.
关键词
河床冲刷/反演方程/磁偶极子/重力驱动Key words
riverbed erosion/inversion equation/magnetic dipole/gravity driven引用本文复制引用
出版年
2024
NETL
NSTL
万方数据