Electrical Engineers and Master Electricians (EEAME) Portal
Home
Dictionary
Tutorials
General
Specifications
Forums
Disclaimer
Devices
Dictionary of Electrical Engineering
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
ALL
Commonly used terms in the Electrical industry.
brushless rotary flux compressor
a rotating machine designed to deliver pulsed output (1 MJ in 100 µs). The stator coils are excited by an external capacitor bank. The rotor is a salient structure that compresses the flux resulting in amplification of the electric pulse, by converting the rotating kinetic energy of the rotor to electrical energy.
electric flux density
basic electromagnetic field quantity used to describe the effects of permeable matter to the electric field; it is expressed in SI units of coulombs per square meter.
flux
(1) lines that indicate the intensity and direction of a field. Intensity is usually represented by the density of the lines.
(2) a measure of the intensity of free neutron activity in a fission reaction, closely related to power, the product of neutron density and neutron velocity, e.g., neutrons per square cm per second.
flux density
lines of magnetic flux per unit area, measured in tesla; 1T = 1Wb/m
2
.
flux line
See
direction line
flux linkage
quantity that indicates the amount of flux associated with a coil. Flux linkage is denoted by the symbol . and expressed in Webers (Wb) or Weber-Turns (Wb-t). For a single turn coil, flux linkage is the same as the flux. Flux linkages of an N turn coil are Nt Wb-t.
fluxmeter
an instrument that measures the change in magnetic flux within a coil by integrating the induced voltage with respect to time.
leakage flux
the flux that does not link all the turns of a winding or in coupled circuits, flux that links one winding but not another. For example, the magnetic flux produced by the primary winding of a transformer that is not coupled to the secondary winding.
linkage flux
also called magnetizing or mutual flux. In a magnetically coupled circuit such as a transformer, the linkage flux is the flux that links all the windings. For example, in a transformer the magnetic flux produced by the primary winding which is coupled to the secondary winding.
magnetic flux
the integral of the component of magnetic flux density perpendicular to a surface, over the given surface.
magnetic flux density
a vector quantifying a magnetic field, so that a particle carrying unit charge experiences unit force when traveling with unit velocity in a direction perpendicular to the magnetic field characterized by unit magnetic flux density. It has the units of volt-seconds per square meter in the SI system of units.
power flux density
a vector that gives both the magnitude and direction of an electromagnetic field's power flow. The units are watts per square meter.
saturation flux density
the maximum value of intrinsic induction (Bi) beyond which an increase in magnetizing field yields no further improvement, indicating that all magnetic moments in the material have been aligned.