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A-B Trigger Time Interval. The A-B Trigger Time Interval Application also uses trigger hardware to measure the time between

the A-Event and the B-Event in an A-B Sequence trigger. The A- and B-Events may be any combination of trigger types: edge,

glitch, width, and so on. When the reference value is non-zero, the measured value is displayed or queried as a delta from the

reference.

Set up measurement statistics

From the Measure menu, highlight Statistics; then select Statistics Controls from the submenu, or click the Statistics button in the

Measurement Setup window.

Overview

Use the Measurement Statistics control window to display statistical calculations on measurements. The control window contains

controls that determine which statistics are displayed in the measurement window.

To use

■

Click Off to turn the measurement statistics display off.

■

Click Mean to display the value and the mean (µ) of each measurement.

■

Click All to display the statistics for each measurement value.

(µ) Mean

(m) Minimum

(M) Maximum

(s) Standard Deviation

(n) Population

■

Click in the Weight entry box, and then use the multipurpose knobs to set the statistics weight.

■

Click Reset to restart the statistics calculations.

TIP. Select the individual statistics directly from the Measure menu Statistics submenu.

Behavior

Measurement values continue as live updates while the statistics accumulate over time. The statistics appear on the main screen

when a control window is open or on the right side of the screen when no control windows are open and there are less than four

measurements active. The color of the statistics match the color of the waveform from which the measurement was taken.

The statistics weight specifies the constant used to calculate the mean and standard deviation; the minimum and maximum

values are unaffected by weighting. A large value produces statistics that vary less over time.

All statistics (mean, minimum, maximum, standard deviation, and population) are always gathered even though the mean may be

the only statistic shown. When measurements are turned on, the acquisitions take longer because measurements and statistic

calculations are done on each acquisition.

What do you want to do next?

Measurement setups

DPO70000SX, MSO/DPO70000DX, MSO/DPO70000C, DPO7000C, and MSO/DPO5000B Series 287

Tektronix MSO5204B Printable Help

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