simpeg.electromagnetics.time_domain.sources.BaseWaveform#

class simpeg.electromagnetics.time_domain.sources.BaseWaveform(has_initial_fields=False, off_time=0.0, epsilon=1e-09, **kwargs)[source]#

Bases: object

Base class for creating a waveform for time-domain EM simulations.

Parameters:
has_initial_fieldsbool, default: False

If the transmitter has non-zero current prior to the start of the simulation (e.g. a step-off waveform), set has_initial_fields to True

off_timefloat, default: 0.0

Time when the transmitter current is zero in units of seconds.

epsilonfloat, default: 1e-9

Small time-constant for which the transmitter is assumed to still be on for

Attributes

epsilon

Window of time within which the waveform is considered on

has_initial_fields

Whether the waveform has initial fields.

off_time

Off-time

Methods

eval(time)

Evaluate current waveform at a given time

eval_deriv(time)

Evaluate the time derivative of the linear ramp-off waveform at given times

Galleries and Tutorials using simpeg.electromagnetics.time_domain.sources.BaseWaveform#

EM: TDEM: Permeable Target, Inductive Source

EM: TDEM: Permeable Target, Inductive Source

TDEM: Waveforms

TDEM: Waveforms

EM: TDEM: 1D: Inversion with VTEM waveform

EM: TDEM: 1D: Inversion with VTEM waveform

Heagy et al., 2017 1D RESOLVE and SkyTEM Bookpurnong Inversions

Heagy et al., 2017 1D RESOLVE and SkyTEM Bookpurnong Inversions

Heagy et al., 2017 1D FDEM and TDEM inversions

Heagy et al., 2017 1D FDEM and TDEM inversions

1D Forward Simulation for a Single Sounding

1D Forward Simulation for a Single Sounding

1D Forward Simulation with Chargeable and/or Magnetic Viscosity

1D Forward Simulation with Chargeable and/or Magnetic Viscosity

1D Forward Simulation with User-Defined Waveforms

1D Forward Simulation with User-Defined Waveforms

3D Forward Simulation for Transient Response on a Cylindrical Mesh

3D Forward Simulation for Transient Response on a Cylindrical Mesh

3D Forward Simulation with User-Defined Waveforms

3D Forward Simulation with User-Defined Waveforms

1D Inversion of Time-Domain Data for a Single Sounding

1D Inversion of Time-Domain Data for a Single Sounding

Forward Simulation Including Inductive Response

Forward Simulation Including Inductive Response