MAGNETIC FIELDSMAGNETIC FLUXCOILMAGNETIC FIELDComputations of magnetic field intensity along the axis of circular cylindrical coilsKilgore, R. ALangley Research CenterMorris, D. EMorris D. E., Kilgore A., "The Magnetic Field on the Axis of Circular Cylindrical Coils", NASA Technical Note, NASA ...
2000). This uses a fixed amplitude AC field electromagnet with equipment for sensitive impedance measurement. The induced voltage, V(t), across a coil sensor is sensitive to the average permeability along the measuring direction, μmaterial, which can be evaluated using simple magnetic circuit theor...
Derive the expression for the instantaneous value of the emf induced in the coil. View Solution A coil is rotated in a uniform magnetic field about an axis perpendicular to the field. The emf induced in the coil would be maximum when the plane of coil is : View Solution A coil of are...
Starting from the basic physical principles,in the case of arbitrary coil spacing of two coaxial electric circular coil,we have launched the general expression of magnetic induction intensity at any point on the axis.We determined the coil spacing of the optimum magnetic field uniformity,using the ...
Top: Magnitude plot of the predicted magnetic field along with exact magnetic field and the error at snapshot \(z=0.72\), middle: comparison of the predicted and the other method’s solutions’ x, y, z directions with 18 sensor data, bottom: comparison of the predicted and the other meth...
The same plot indicates that the normal component of the magnetic field (easy axis field) switches the cell at a smaller field than the longitudinal component (hard axis field). The required writing currents, however, are very large and increase as the diameter of the MTJ pillar is scaled ...
A method for monitoring the misalignment of the magnetic axis in solenoids is proposed. This method requires only a few measurements of the magnetic field at fixed positions inside the magnet aperture, and thus overcomes the main drawback of sturdy movin
Central conductor: an electrically conductive bar usually made of copper used to introduce a circular magnetic field in to a test specimen. Coil: an electrical conductor such a copper wire or cable that is wrapped in several or many loops that are brought close to one another to form a ...
Field sequence used to demagnetize the magnetic media. In digital recording, the recording head ensures the magnetic saturation of media, the previous states are automatically blots, and a separate erasing head is not necessary. The amplitude of magnetization along the recording direction should be ...
the magnet is a stationary electromagnet and the rotor is aferromagnet. Such a system is inherently unstable, so active feedback is used to modulate the field of the electromagnet depending on the position of the rotor. Such bearings have been used for decades in industrial applications and have...