User manual

PicoScope and oscilloscope primer20

5.12

Measurements table

A measurements table displays the results of automatic measurements. Each view

can have its own table, and you can add, delete or edit measurements from this table.

Measurements table columns

Name

The name of the measurement that you selected in the Add

Measurement or Edit Measurement dialog. An "F" after the name

indicates that the statistics for this measurement are filtered.

Span

The section of the waveform or spectrum that you want to measure.

This is 'Whole trace' by default.

Value

The live value of the measurement, from the latest capture

Min

The minimum value of the measurement since measuring began

Max

The maximum value of the measurement since measuring began

Average

The arithmetic mean of the measurements from the last n captures,

where n is set in the General page of the Preferences dialog

The standard deviation of the measurements from the last n captures,

where n is set in the General page of the Preferences dialog

Capture

Count

The number of captures used to create the statistics above. This starts

at 0 when triggering is enabled, and counts up to the number of

captures specified in the General page of the Preferences dialog.

To add, edit or delete measurements

See: Measurements toolbar.

To change the width of a measurement column

First ensure that the Column Auto-width option is not

enabled in the Measurements menu. If necessary, click the

option to switch it off. Then drag the vertical separator

between column headings to resize the columns, as shown

opposite.

To change the update rate of the statistics

The statistics (Min, Max, Average, Standard Deviation) are based on the number

of captures shown in the Capture Count column. You can change the maximum

capture count using the Capture Size control in the General page of the Preferences

dialog.