flux density


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flux density

1. (spectral flux density or, strictly, spectral power flux density) Symbol: S . A measure of the strength of the signal received from a discrete source of emission. The dimensions of flux density are energy per unit time per unit bandwidth per unit area. The unit is the jansky.

flux density

[′fləks ‚den·səd·ē]
(nucleonics)
(physics)
Any vector field whose flux is a significant physical quantity; examples are magnetic flux density, electric displacement, gravitational field, and the Poynting vector.
References in periodicals archive ?
By using the resulting array, we were able to improve the magnetic flux density by 17% and the power generation efficiency of the energy harvesting device by 16% compared with the conventionally-designed 2-dimensional array.
1) with the maximum value of the magnetic flux density [B.sub.m] depends on the size of the section, i.e.
Where, [[mu].sup.rm] is the relative permeability of the magnet, [[mu].sub.0] is the permeability of air, [l.sub.g] and [l.sub.m] are air-gap and magnet thicknesses, [T.sub.ph] is stator turns/phase, I is the current in the coil, [[mu].sub.rm] is the relative permeability of the magnet, [A.sub.g] and [A.sub.m] are air-gap and magnet areas, B is the air-gap flux density, [B.sub.r] is the magnet remnant flux density, k is the leakage factor, [K.sub.c] and [K.sub.h] are core loss coefficients, [P.sub.c] and [P.sub.h] are eddy current and hysteresis losses in steel and [B.sub.m] is the magnet flux density.
The calculated value of the thermal neutron flux density was 1817.5 neutrons/[cm.sup.2]/s and the average value of kerma rate determined on this basis amounted to 244 [micro]Gy/h, and the dose equivalent rate stood at 610 [micro]Sv/h.
No-load magnetic flux density distribution over magnet pole and iron pole pitch of the [V.sub.1]-[U.sub.4] and [V.sub.1]-[V.sub.4] concepts.
From model 1 and model 2 obtained simulation results can be stated that the magnitude of flux density between steel plates for model 1 is |B| = 0.01 T and for a completed magnetic circuit theory model 2 is |B| = 0.69 T (average value).
The solar flux density at a 10.7 cm wavelength is continuously monitored at the Dominion Radio Astrophysical Observatory (DRAO).
Based on the measured temperature curves at different positions, the wall heat flux density of each position has been determined.
Figure (11) shows the magnetic flux density distribution for two broken rotor bars as a sample for show the effect of broken bars on the flux distribution.
Fig.2 shows the responsivity at different wavelengths at a drain to source bias of 2.21 V and a flux density of [10.sup.12] /[m.sup.2]-s.
So this part concentrates on current density distribution and magnetic flux density distribution graphs at different gap distances and the voltage frequency is fixed at 400 Hz.
have developed a novel tube-like PM combining a series of shorter PM rings gradually changing their shapes and remanent flux density, but this design requires an elaborated preparation for PM rings; if the GMM in the actuator changes its size, the PM rings have to be redesigned accordingly [11].