This example uses the streamline module to display field lines of a magnetic dipole (a current loop).This example requires scipy.The magnetic field from an arbitrary current loop is calculated from eqns (1) and (2) in Phys Rev A Vol. 35, N 4, pp. 1535-1546; 1987....
Magnetic field, a vector field in the neighborhood of a magnet, electric current, or changing electric field, in which magnetic forces are observable. Magnetic fields such as that of Earth cause magnetic compass needles and other permanent magnets to lin
A moving magnetic field (an MFL in-line inspection tool) in a conductor (the pipe) will induce electrical currents in the conductor. These currents, in turn, affect the applied and leakage fields. As a result, MFL inspection is velocity dependent. The electrical currents induced by the moveme...
Protection against radiation is critical for providing the general public with a healthy living environment. Around the world, there are rules and regulations in place to ensure that magnetic field exposure stays within acceptable limits. However, the definition of these acceptable limits is up for d...
Magnetic reconnection can occur when two plasmas, having anti-parallel components of the magnetic field, encounter each other. In the reconnection plane, the anti-parallel component of the field is annihilated and its energy released in the plasma. Here, we investigate through laboratory experiments ...
Using the PIC method of microscopic particle simulation, the plasma magnetic nozzle effect and performance of the MPDT under different magnetic-field conditions were studied. The integrated experiment used demonstrated that, in conjunction with the superconducting coil, greater homogeneity and a stronger ...
Recent work on modelling the global field line topology of interplanetary magnetic clouds 来自 ResearchGate 喜欢 0 阅读量: 65 作者: CJ Farrugia 摘要: Summary This chapter contains sections titled: Introduction Two Models of Magnetic Clouds Radial, Self-Similar Expansion and its Consequences; Exact ...
The magnetic North Pole is the location in theNorthern Hemispherewhere the planet's magnetic field lines point straight downwards, penetrating the surface of the Earth. Its location changes at a rate of about 56 kilometers (35 miles) per year. Currently, it is located in the Arctic Ocean nor...
Magnetic field mapping is commonly used in many fields of science, medicine and technology such as particle accelerators, nuclear storage experiments1,2,3, cardiac beat detection4, magnetic resonance imaging (MRI)5 and magnetic indoor positioning systems (IPS)6,7. For example, in nuclear and ...
The direction between the crack and the external magnetic field is uncertain. We established a fixed coordinate system to describe the magnetic signals at the crack location of a cylindrical structure in 3D space. Taking a 90° V-shaped crack as an example, a stress-magnetic charge theoretical ...