One of the primary ways to
measure the
magnetic field strength, the magnetic flux density is the amount of
magnetic flux, Phi,
per a given
area, A. It is usually represented with the
vector B, and
measured in
units of
Tesla (T). There are several ways of
calculating the magnetic flux density:
Where μ is the permeability of the region, H is the magnetic field intensity, and A is the area that the flux Phi passes through. Note that this second equation must be used with some care, as it is really a (albeit common) special case of the more general equation:
Phi = Integral{ B·ds } over s
Where s is the surface with the area A.