Time-Domain EM (SimPEG.electromagnetics.time_domain)

About time_domain

Simulations

Simulation1DLayered([survey, time_filter])	Simulation class for simulating the TEM response over a 1D layered Earth for a single sounding.
Simulation3DMagneticFluxDensity(mesh[, ...])	Starting from the quasi-static E-B formulation of Maxwell's equations (semi-discretized)
Simulation3DElectricField(mesh[, survey, ...])	Solve the EB-formulation of Maxwell's equations for the electric field, e.
Simulation3DMagneticField(mesh[, survey, ...])	Solve the H-J formulation of Maxwell's equations for the magnetic field h.
Simulation3DCurrentDensity(mesh[, survey, ...])	Solve the H-J formulation for current density

Receivers

receivers.PointElectricField([locations, ...])	Measure TDEM electric field at a point.
receivers.PointCurrentDensity([locations, ...])	Measure TDEM current density at a point.
receivers.PointMagneticFluxDensity([...])	Measure TDEM magnetic flux density at a point.
receivers.PointMagneticFluxTimeDerivative([...])	Measure time-derivative of magnetic flux density at a point.
receivers.PointMagneticField([locations, ...])	Measure TDEM magnetic field at a point.
receivers.PointMagneticFieldTimeDerivative([...])	Measure time-derivative of magnet field at a point.

Waveforms

sources.StepOffWaveform([off_time])	A heavy-side step function waveform.
sources.RampOffWaveform([off_time])	A waveform with a linear ramp-off.
sources.RawWaveform([off_time, ...])	A waveform you can define.
sources.VTEMWaveform([off_time, peak_time, ...])	A VTEM style waveform
sources.TrapezoidWaveform(ramp_on, ramp_off)	A waveform that has a linear ramp-on and a linear ramp-off.
sources.TriangularWaveform(start_time, ...)	TriangularWaveform is a special case of TrapezoidWaveform where there's no pleateau
sources.QuarterSineRampOnWaveform(ramp_on, ...)	A waveform that has a quarter-sine ramp-on and a linear ramp-off
sources.HalfSineWaveform(ramp_on, ramp_off, ...)	A waveform that has a quarter-sine ramp-on and a quarter-cosine ramp-off.

Sources

sources.MagDipole([receiver_list, location, ...])	Point magnetic dipole source calculated by taking the curl of a magnetic vector potential.
sources.CircularLoop([receiver_list, ...])	Circular loop magnetic source calculated by taking the curl of a magnetic vector potential.
sources.LineCurrent([receiver_list, ...])	Line current source.
sources.RawVec_Grounded([receiver_list, s_e])	Attributes

Surveys

survey.Survey(source_list, **kwargs)

Time domain electromagnetic survey

Fields

Fields3DMagneticFluxDensity(simulation[, ...])	Field Storage for a TDEM simulation.
Fields3DElectricField(simulation[, ...])	Fancy Field Storage for a TDEM simulation.
Fields3DMagneticField(simulation[, ...])	Fancy Field Storage for a TDEM simulation.
Fields3DCurrentDensity(simulation[, ...])	Fancy Field Storage for a TDEM simulation.

Base Classes

receivers.BaseRx(locations, times[, ...])	Base TDEM receiver class
sources.BaseWaveform([has_initial_fields, ...])	Base class for creating a waveform for time-domain EM simulations.
sources.BaseTDEMSrc([receiver_list, ...])	Base TDEM source class
simulation.BaseTDEMSimulation(mesh[, ...])	We start with the first order form of Maxwell's equations, eliminate and solve the second order form.
fields.FieldsTDEM(simulation[, knownFields, ...])	Fancy Field Storage for a TDEM simulation.
fields.FieldsDerivativesEB(simulation[, ...])	A fields object for satshing derivs in the EB formulation
fields.FieldsDerivativesHJ(simulation[, ...])	A fields object for satshing derivs in the HJ formulation