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Voltage

The EMA3D Voltage difference probe measures the voltage between two specified points.

Instructions

  1. ClickVoltage Probe Image 16 Voltage Probe within the Probes section under the EMA3D tab in the ribbon.

    2. voltage probe 1

  2. In the Properties Panel, adjust the probe properties as desired.

    3. voltage probe 2

  3. Using the select pointSelect Point Image 16 select the negative point of the probe - only points that match up with a defined point in the model geometry can be selected (e.g., a corner, a line midpoint, or a user-drawn point). Selecting points from the Structure Tree is not supported.

    4. voltage probe 4

  4. Using the select pointSelect Point Image 16 select the positive point.

    5. voltage probe 5

  5. The probe will now appear as a red and black line connecting the two points in the model window.

    6. voltage probe 6

  6. Adjust the definitions of the probe at any time by right clicking it within the Simulation Tree and selecting Edit from the pop-up menu.

    7. voltage probe 7

  7. To visualize the Voltage Probe results, see here.

General
Options

Entry

Meaning

Name

Name of the probe.

Time
Time Options

Entry

Meaning

Start - Match Domain

Match the start time to the FDTD domain.

Start - Value

The probe start time.

Step - Match Domain

To which domain to match the probe time step:

  • Highest Frequency sets the probe time step such that it captures up to the highest supported frequency of the domain (this time step is coarser than the Domain time step and results in smaller files)

  • Time Step matches the probe time step to the FDTD domain time step

  • False allows the user to set the probe time step value manually

Step - Value

The probe time step.

End - Match Domain

Match the end time to the FDTD domain.

End - Value

The probe.com end time.

See Also

EMA3D – © 2026 EMA, Inc. Unauthorized use, distribution, or duplication is prohibited.