Time Measurements - Agilent Technologies 6000 Series User Manual

5 Making Measurements

Time Measurements

186
The middle value is bounded by the values set for lower and
upper thresholds. The default middle threshold is 50% or
1.20 V.
• If threshold Type is set to %, the middle threshold value can
be set from 6% to 94%.
6 Press the Upper softkey, then turn the Entry knob to set the
upper measurement threshold value.
Decreasing the upper value below the set middle value will
automatically decrease the middle value to be less than the
upper value. The default upper threshold is 90% or 1.50 V.
If threshold Type is set to %, the upper threshold value can
•
be set from 7% to 95%.
FFT measurements
When you make an X at Max or X at Min measurement on a math FFT function,
the resultant units will be in Hertz. No other time related automatic measurement
can be made on the FFT math function. Use the cursors to make other
measurements on FFT.
The default lower, middle, and upper measurement thresholds
are 10%, 50%, and 90% between Top and Base values. See
measurement thresholds"
threshold and absolute value threshold settings.
The following figure shows time measurement points.
Rise Time Fall Time
+ Width
on page 184 for other percentage
– Width
Period
6000 Series Oscilloscope User's Guide
"To set
Thresholds
Upper
Middle
Lower