MultiLoop III - Tutorial 1 Running an existing model.

MultiLoop III - Tutorial 1

MultiLoop III - Tutorial 1

Running an existing modelRunning an existing model

Step 1: Start MultiLoop IIIStep 1: Start MultiLoop III

1. Double click on the MultiLoop III Icon

2. The graphic window and a splash screen will appear

3. Click on the splash screen4. A “New Model” dialogue will

appear5. Select the coordinate system6. Go.

1. Double click on the MultiLoop III Icon

2. The graphic window and a splash screen will appear

3. Click on the splash screen4. A “New Model” dialogue will

appear5. Select the coordinate system6. Go.

Splash Screen

MultiLoop III Graphic Window

MultiLoop III Menu Bar

Graphic Manipulators

PickPanZoomRotateViewingIllumination

Click OK When done

Select the azimuth sign convention

Specify the azimuth

Select the coordinate convention

.mlp files store MultiLoop models From the File menu, select open From the Open File dialogue, select a file

In this case, HalfPlanecoef1511.mlp is used

Go…

.mlp files store MultiLoop models From the File menu, select open From the Open File dialogue, select a file

In this case, HalfPlanecoef1511.mlp is used

Go…

Step 2: Open a .mlp fileStep 2: Open a .mlp file

From the File Menu, Select open

Click “Open” when done

Select the file

Navigate to recent places and up the file tree here

Change the view to alternate between thehierarchy and sorted names here

Step 3: Model OpensStep 3: Model Opens

When the file is opened, the model is displayed

The mesh can be viewed in “mesh” or “tile” view

Keys “b”,”s” control the tile sizes Keys “l”,”r”,”u”,”d”,”i”,”o” control the view

Arrow keys control panning Go….

When the file is opened, the model is displayed

The mesh can be viewed in “mesh” or “tile” view

Keys “b”,”s” control the tile sizes Keys “l”,”r”,”u”,”d”,”i”,”o” control the view

Arrow keys control panning Go….

The mesh is shown as tiles. Tile colour variation indicates variable resistance

The line is drawn & annotated here in blue

Letters after theline labels referto the coordinate

Data are plottedin “stacked profile”format along theline

Reference axes

Transmitter loop

Receiver componentlabel of theplotted data

Step 4: Compute a responseStep 4: Compute a response

From the Calculate menu, select Response This starts the computation. A text output window records the progress of the calculation

Initially, the mesh is parsed. The resistive and inductive limits are found, then a time step solution in found

The profile response is then computed, and the data are plotted

Go…

From the Calculate menu, select Response This starts the computation. A text output window records the progress of the calculation

Initially, the mesh is parsed. The resistive and inductive limits are found, then a time step solution in found

The profile response is then computed, and the data are plotted

Go…

From the Calculate menu, select Response

Step 5: CalculatingStep 5: CalculatingText Output Window(may be the console)

Messages from the geometricoptimizer

Inductance calculations

Inductance calculations

Geometric summary of the mesh

Primary field, Inductive, Resistive Limits

TimeStepper

Time stepcount

Iterationsper step

Time per step

Latest steptime

Rate of change in thestream potential

Basis function generation

Step 6: Calculation completesStep 6: Calculation completes

A message box appears when the calculationis done. Click OK.

Step 7: Write out dataStep 7: Write out data

Data can be output to a Geosoft style ASCII file

Select the Exports Menu, then Write Data A file dialogue will appear, select the file to create

There is only simulated data in this session; you will be asked whether to write out transformed data.

Answer No, Transforms will be covered later

Go….

Data can be output to a Geosoft style ASCII file

Select the Exports Menu, then Write Data A file dialogue will appear, select the file to create

There is only simulated data in this session; you will be asked whether to write out transformed data.

Answer No, Transforms will be covered later

Go….

To export to a file, select Write Data

The File DialogueAppears

Select the file name to write

Select the directory

Save

Select yes to write the calculated data tothe file. Transforms will be explained later.Transforms allow the data to be transformedbefore writing.

DoneDone

An ASCII file with the data has been created.

This file can be opened with an a text editor such as TextEdit, BBEdit or WordPad

The file data can be imported into programs such as OasisMontaj and MultiLoop III

An ASCII file with the data has been created.

This file can be opened with an a text editor such as TextEdit, BBEdit or WordPad

The file data can be imported into programs such as OasisMontaj and MultiLoop III