SimPEG.electromagnetics.time_domain.sources.MagDipole#

class SimPEG.electromagnetics.time_domain.sources.MagDipole(receiver_list=None, location=None, moment=1.0, orientation='z', mu=1.25663706212e-06, srcType='inductive', **kwargs)[source]#

Bases: BaseTDEMSrc

Point magnetic dipole source calculated by taking the curl of a magnetic vector potential. By taking the discrete curl, we ensure that the magnetic flux density is divergence free (no magnetic monopoles!).

Parameters:

receiver_listlist of SimPEG.electromagnetics.time_domain.receivers.BaseRx: A list of TDEM receivers
location(dim) numpy.ndarray, default = np.r_[0., 0., 0.]: Source location.
momentfloat: Magnetic dipole moment amplitude
orientation{“z”, “x”, “y”} or (3) numpy.ndarray: Orientation of the magnetic dipole.
mufloat: Background magnetic permeability
source_type{‘inductive’, ‘galvanic’}: Implement as an inductive or galvanic source

Attributes

`location`	Location of the dipole
`moment`	Amplitude of the dipole moment of the magnetic dipole (\(A/m^2\))
`mu`	Magnetic permeability in H/m
`orientation`	Orientation of the dipole as a normalized vector

Methods

`bInitial`(simulation)	Compute initial magnetic flux density.
`hInitial`(simulation)	Compute initial magnetic field.
`s_e`(simulation, time)	Electric source term (s_e) at a given time
`s_m`(simulation, time)	Magnetic source term (s_m) at a given time