The Impact Of Magnetic Vector On Local Magnetic Measurement

Any point on earth has a magnetic field strength and direction and the magnetic field is constantly changing with time. According to the value of magnetic elements of specific parts and moment of the ground, the various magnetic elements can be drawn a map of the ground-geomagnetic map. Geomagnetic model and geomagnetic map of the magnetic field are the basis to understand the spatial distribution and temporal variation and changes in market characteristics.In this paper, the basic model of Magnetic dipole is set up, which indicates the influence on the surrounding magnetic field from the magnetic vector—robot. The simulation figure of magnetic lines of force from the magnetic dipole is completed by Mathematica software, furthermore, the geomagnetic measurement with small scale, different highness and dense measurement spots are finished by Proton magnetometer, so by Kriging Interpolation, the geomagnetic figure is fabricated.In this paper, the research focused on the magnetic change with robots powered on and off. By optically pumped cesium magnetometer the total magnetic intensity around robot is measured. The case without power measurement, using interpolation to draw contour maps, and then connect the cable to the robot through the AC, the same measurements, the same contour map drawn. Consider the magnetic field around the robot powered off as a normal field, analysis of the magnetic field changes when the robot is powered on, and drawn current anomaly field generated by the contour map. Through observation, we find that the contour and a circular current distribution of the magnetic field around the basic compliance. Create a simple circular current model, and calculate the magnetic field line equation around the room, and simulate the spatial distribution of the magnetic field by software. So, the existence of a circular current inside the robot is able to verify.