PROBLEM TO BE SOLVED: To improve the measurement accuracy of a fiber-optic current and magnetic field sensor against temperature changes by deciding the length of the optical path of a magneto- optical element from a specific formula by using the Verdet constant of the element and the temperature...
PROBLEM TO BE SOLVED: To improve the measurement accuracy of a fiber-optic current and magnetic field sensor against temperature changes by deciding the length of the optical path of a magneto- optical element from a specific formula by using the Verdet constant of the element and the ...
The microstructures of Nb-Ti-Zr sheets were investigated to make clear the relation between the microstructures and the applied magnetic field vs critical current density characteristics. The results are summarized as follows: (1) The ratio of Jc(\varparallel)Jc(⊥) are in proportion as the rati...
Current density in a conductor can be defined as the charge flow through any cross-section of theconductor. However, the current density alters in different parts of an electrical conductor resulting in alternating currents at higher frequencies. Electric current always creates amagnetic field. With ...
According to Fleming’s right-hand rule; this current will produce a magnetic field in a clockwise direction. Magnetic Force Produced by an Electric Current The result of a magnetic field of the conductor is that it will force the magnetic field above the conductor and waken it below. The ...
This paper clarifies two matters, the source of equation of Ω and the nature of current vector T, of T-Ω method in magnetostatic field analysis. First, we derive a new formula including T0 (T0 obtained from exciting current density Js is expressed as T0) from the Biot-Savart formula by...
Magnetic fields form around electric currents, the direction of which can be determined by the right-hand rule. Review current flow and the right-hand rule with examples, and practice applying the formula to calculate magnetic field strength. Related...
Electrons move toward a positive terminal in an electric circuit. The electron flow, or moving charge, is therefore away from the negative terminal. The movement of electrons in a copper wire or other conductive material also generates a magnetic field that has a direction and magnitude ...
In terms of electromagnetic emission, the amplitude of the radiation field produced by the transient discharge current is proportional to the current derivative, dI/dt. The radiation field resulting from PC arcing is determined by the current’s time-domain variation and the “antenna structure” ...
But a magnetic steel rod, a magnetic card tape, and other devices can only measure the peak value, rise rate, and other key parameters of the lightning current. The non-contact measurement of the lightning current is realized by measuring the magnetic field of the lightning current. This ...