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Magnetic Sources #312

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prisae opened this issue Mar 30, 2023 · 3 comments · Fixed by #326
Closed

Magnetic Sources #312

prisae opened this issue Mar 30, 2023 · 3 comments · Fixed by #326
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@prisae
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prisae commented Mar 30, 2023

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 prisae added bug Something isn't working docs Stuff related to the documentation and removed bug Something isn't working labels Mar 5, 2024
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prisae commented Mar 7, 2024

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.

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prisae commented Mar 7, 2024

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 added a commit that referenced this issue Mar 8, 2024
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prisae commented Mar 8, 2024

@prisae prisae closed this as completed Mar 8, 2024
@prisae prisae linked a pull request Mar 8, 2024 that will close this issue
prisae added a commit that referenced this issue Mar 8, 2024
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