magnetic flux density


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Related to magnetic flux density: magnetic field strength, magnetic field intensity

magnetic flux density

(magnetic induction) Symbol: B. A vector quantity that is a measure of the strength of a magnetic field in a particular direction at a particular point. It may be given in terms of the force, F , on a charge, q , moving in the magnetic field:
B = F /(qv sinθ)
where v is the velocity of the charge, which is moving at an angle θ to the direction of the field. Magnetic flux density is usually measured in teslas. The magnetic flux, symbol: Φ, is the surface integral of B , i.e.
Φ =   B .dA =   B cosα dA
where α is the angle between B and a line perpendicular to the surface. The magnetic flux density is thus the magnetic flux passing perpendicularly through unit area. Magnetic flux is measured in webers.

magnetic flux density

[mag′ned·ik ′fləks ‚den·səd·ē]
(electromagnetism)
A vector quantity that is used as a quantitative measure of magnetic field; the force on a charged particle moving in the field is equal to the particle's charge times the cross product of the particle's velocity with the magnetic flux density (SI units). Also known as magnetic displacement; magnetic induction; magnetic vector.
References in periodicals archive ?
8, the MR effects increased with increasing magnetic flux density and magnetic saturation was reached at about 560 mT.
The values of average magnetic flux density and heterogeneity of magnetic flux density were calculated at control zone.
The stator resistance becomes higher, increasing Joule losses, but it is compensated by the reduction of iron losses due to the magnetic flux density reduction.
Specifically, based on the proposed model (equation 4) it is expected that the amplitude of the stimulating current is reduced in proportion to the magnitude of the applied magnetic flux density.
The magnetic field intensity and the magnetic flux density are related by
Substituting (6) into (2), the magnetic flux density vector can be determined as
The magnetic flux density was measured with a hall magnetometer, implemented from a FW Bell BH701 sensor.
When a magnetic flux density is detected and exceeds the IC's operating point, output 1 is pulled low while output 2 is inverted high, enabling different logic systems to be accommodated.
Other topics addressed include methods of characteristics evaluation of electrical contact properties of carbon nanotube coated surfaces, theoretical and experimental analysis of magnetic flux density distribution as a diagnostic tool for critical failures, the tribo-metrology of the skin, micro/nano scale mechanical and tribological characterization for orthopedic applications, the friction and wear characteristics of rubber coating in fretting, the characterization and simulation of cylinder liner surface finishes, and life estimation of turbine oils in power plant equipment.
Magnetic flux density in w-coordinates will be evaluated as a derivative of the magnetic vector potential W(w)
In fact, the limiting factors are as often thermal management and material properties as they are electrical insulation and magnetic flux density.