SimPEG.electromagnetics.frequency_domain.sources.MagDipole_Bfield#

class SimPEG.electromagnetics.frequency_domain.sources.MagDipole_Bfield(receiver_list, frequency, location=None, **kwargs)[source]#

Bases: MagDipole

Point magnetic dipole source calculated with the analytic solution for the fields from a magnetic dipole. No discrete curl is taken, so the magnetic flux density may not be strictly divergence free.

This approach uses a primary-secondary in frequency in the same fashion as the MagDipole.

Parameters:
receiver_listlist of SimPEG.electromagnetics.frequency_domain.receivers.BaseRx

A list of FDEM receivers

frequencyfloat

Source frequency

location(dim) numpy.ndarray, default: np.r_[0., 0., 0.]

Source location.

momentfloat

Magnetic dipole moment amplitude

orientation{‘z’, x’, ‘y’} or (dim) numpy.ndarray

Orientation of the dipole.

mufloat

Background magnetic permeability

Attributes

frequency

Source frequency

integrate

Integrated source term

location

Location of the dipole

moment

Amplitude of the dipole moment of the magnetic dipole (\(A/m^2\))

mu

Magnetic permeability in H/m

nD

Number of data associated with the source.

orientation

Orientation of the dipole as a normalized vector

receiver_list

List of receivers associated with the source

uid

Universal unique identifier

vnD

Vector number of data.

Methods

bPrimary(simulation)

The primary magnetic flux density from the analytic solution for magnetic fields from a dipole

bPrimaryDeriv(simulation, v[, adjoint])

Compute derivative of primary magnetic flux density times a vector

ePrimary(simulation)

Compute primary electric field

ePrimaryDeriv(simulation, v[, adjoint])

Compute derivative of primary electric field times a vector

eval(simulation)

Return magnetic and electric source terms

evalDeriv(simulation[, v, adjoint])

Return derivative of the magnetic and electric source terms with respect to the model.

get_receiver_indices(receivers)

Get indices for a subset of receivers within the source's receivers list.

hPrimary(simulation)

Compute primary magnetic field.

hPrimaryDeriv(simulation, v[, adjoint])

Compute derivative of primary magnetic field times a vector

jPrimary(simulation)

Compute primary current density

jPrimaryDeriv(simulation, v[, adjoint])

Compute derivative of primary current density times a vector

s_e(simulation)

Electric source term (s_e)

s_eDeriv(simulation, v[, adjoint])

Derivative of electric source term with respect to the inversion model

s_m(simulation)

Magnetic source term (s_m)

s_mDeriv(simulation, v[, adjoint])

Derivative of magnetic source term with respect to the inversion model