Period

The Oscilloscope mode Period is a measure of the time between the first detected edge of a waveform and the next occurrence of the same type of edge. The measurement can be restricted to a measurement region. The time between the edges of the waveform is taken at the middle threshold crossings. The default for the middle threshold is the 50% level. The period will not be calculated unless there is a complete waveform cycle visible on the display. Two waveform annotation labels mark the start and stop measurement points.

Period is determined as follows:

• Rising edge

• Falling edge

Configurable Measurement Parameters

This measurement is affected by the following settings (click Measure > Configure Base Measurements):

• Top-Base Definition tab
• Thresholds tab

To measure

1. Select Oscilloscope Mode.
2. Click the toolbar's Time tab.
3. Click the More buttons to locate the Period button.
4. Click the button.
5. If measurement regions are enabled, the Select Measurement Region, Setting dialog is displayed. Select the area over which the measurement is to be performed: a Region or the Entire Display.

SCPI Command

:MEASure:OSCilloscope:PERiod