Magnetic Sources

[prisae]

The magnetic source TxMagneticDipole is an electric loop, whereas TxMagneticPoint is a magnetic point. As such they differ by a factor iwu! Make consistent, or at least document properly.

[prisae]

It is a documentation issue. We need the magnetic point as adjoint to the magnetic receiver. So document properly the underlying assumptions, no need to change code.

[prisae]

Magnetic Sources

• emg3d.TxMagneticPoint -> Creates a magnetic dipole -> magnetic field strength H [A/m]
• emg3d.TxMagneticDipole -> Creates an electric loop -> magnetic flux density B [T]

This corresponds to

• empymod.model.{db}ipole -> magnetic field strength H [A/m]
• empymod.model.loop -> magnetic flux density B [T]

Useful stuff

• B = μH
• magnetic moment I^m [A m2]
• electric moment I^e [C m] or [A s m]

[prisae]

Fixed in:

• https://github.com/emsig/emg3d/pull/326
• https://github.com/emsig/empymod/pull/212