Defining Excitations

The specific excitations you can define depend on the solver you have chosen for your project.

• Magnetostatic Excitations
• Electrostatic (Electric) Excitations
• AC Conduction (Electric) Excitations
• DC Conduction (Electric) Excitations
• Eddy Current T-W Excitations
• Eddy Current A-F Excitations
• Transient Excitations
• Transient A-Phi Formulation Excitations
• Electric Transient Excitation

To assign an excitation:

1. Select the section of the geometry on which you want to apply the excitation.
2. Click Maxwell 3D > Excitations > Assign, or right-click Excitations in the Project Manager tree, and click Assign.

   A submenu appears.

3. Select an excitation type from the submenu. The choices vary depending on the solver type you have chosen. Choices include
• Voltage
• Voltage Drop
• Charge
• Volume Charge Density
• Current Density
• Current
• Permanent Magnet Field
• Sink
4. Enter the name for the excitation type or accept the default.
5. Enter the desired parameter values, units, and other settings for the excitation in the dialog box. You can also enter a mathematical function to determine values for voltage, current density, charge density, and other parameters. The Permanent Magnet Field excitation also requires you set up a link to a source project.
Note: When entering current, current density terminals, or coil terminals, the arrow associated with current in the selected object shows the direction as if a positive value is entered for the current. If a negative value is entered the actual current flow direction is opposite to what the arrow shows. Click Swap Direction if you want to reverse the direction of the arrow.
6. Click OK to create the new excitation.

The new excitation is added to the excitation list in the Project Manager tree.