Cursor Measurements Panel

The Cursor Measurements panel displays screen cursors. The panel provides two types of cursors for measuring signals. Waveform cursors are vertical cursors that track along the signal. Screen cursors are both horizontal and vertical cursors that you can place anywhere in the display.

Note

If a data point in your signal has more than one value, the cursor measurement at that point is undefined and no cursor value is displayed.

Display screen cursors with signal times and values. To open the Cursor measurements panel:

• From the menu, select Tools > Measurements > Cursor Measurements.

• On the toolbar, click the Cursor Measurements button.

In the Settings pane, you can modify the type of screen cursors used for calculating measurements. When more than one signal is displayed, you can assign cursors to each trace individually.

• Screen Cursors — Shows screen cursors (for spectrum and dual view only).

• Horizontal — Shows horizontal screen cursors (for spectrum and dual view only).

• Vertical — Shows vertical screen cursors (for spectrum and dual view only).

• Waveform Cursors — Shows cursors that attach to the input signals (for spectrum and dual view only).

• Lock Cursor Spacing — Locks the frequency difference between the two cursors.

• Snap to Data — Positions the cursors on signal data points.

The Measurements pane displays time and value measurements.

• 1 — View or modify the time or value at cursor number one (solid line cursor).

• 2 — View or modify the time or value at cursor number two (dashed line cursor).

• ΔT or ΔX — Shows the absolute value of the time (x-axis) difference between cursor number one and cursor number two.

• ΔY — Shows the absolute value of the signal amplitude difference between cursor number one and cursor number two.

• 1/ΔT or 1/ΔX — Shows the rate. The reciprocal of the absolute value of the difference in the times (x-axis) between cursor number one and cursor number two.

• ΔY/ΔT or ΔY/ΔX — Shows the slope. The ratio of the absolute value of the difference in signal amplitudes between cursors to the absolute value of the difference in the times (x-axis) between cursors.