MagOasis -- Magsimus Deluxe Tutorials -> Interacting Objects -> Specifying an External Field

We now specify an external field that will be applied to the completed design during the simulation. This will be carried out in the External Field Controls frame of the System view window.

Check the Use field definitions box by clicking on it. This prepares the solver to apply to the system during the simulation, the field we are about to define. If this box were left unchecked, the solver would apply to the system the field given by the inputs in the data fields Magnitude , Azimuth and Polar . Refer to the online help for a detailed description of the external field controls.

Press the Edit button. This launches the external field specification dialog shown in Fig. 11. A field definition is made up of a sequence of field legs . Refer to the online help for a detailed description of this dialog box. Here, we define an external field consisting of only one leg. This will be a field excitation that varies in a "loop" manner. In the External field specs. tab, add the field leg by pressing the Add button. Select Loop in the Field Type drop-down list.

Fig. 11. External field specification dialog.

Enter the following inputs:

Min. field (Oe) = -300

Max. field (Oe) = 300

Polar angle (Deg.) = 50

Azimuth angle (Deg.) = 0

No. of data points = 100

The above specifications prepare us to apply a sequence of fields to the system in 100 equal increments from 300 Oe to - 300 Oe and back to 300 Oe, along the direction specified by the angular coordinates. Press the OK button to exit the external field definition dialog.

<< Previous

[Contents]

Next >>