Measurement Computing eZ-Analyst rev.14.1 - Manual (Page 21)

eZ-Analyst 878193 Menus 3-3
Task Menu > Playback / Review Mode
The Playback Mode does not require the presence of physical hardware. When in Playback,
eZ-Analyst is strictly a post-acquisition display and analysis program. Raw time-domain data,
that has been recorded-to-disk, can be played back for analysis repeatedly. For example, a raw
signal could be played back several times, each time using a different FFT Window algorithm to
manipulate the original signal. Once the desired results have been achieved the new data can
be exported in a new format and to a different file. The original file can remain unchanged, and
kept for future analysis.
To activate the Playback Mode, select Playback/Review on the Task Menu. An option is to click
the <Change Task Mode> button (the first button in the tool bar) while in the Measurement
Mode. Also, note that when a WaveBook or ZonicBook is not available, eZ-Analyst will
automatically enter the Playback mode and will display the data that was most recently
recorded to disk.
Playback Mode Task Bar
Task Menu > Input Range (Auto/Manual) *
Auto-ranging is a procedure that automatically sets the input full-scale voltage (FSV) range for
input channels. The FSV is set by measuring a representative sample of real-time data. Auto-
ranging is only performed on active channels.
Auto-ranging works best if you supply the maximum expected voltage range for the data that
will be captured during the acquisition. Therefore, make the Auto Range Duration long enough
to apply a typical signal. In addition, make sure that the Auto Range Analysis Frequency is
fast enough to capture the high frequency component. Typically the Analysis Frequency will
be the same setting as eZ-Analyst’s Acquisition Analysis Frequency.
AutoRange Dialog Box, from a WaveBook
Note that AutoRange Dialog Boxes for other analyzers are similar.
* You can access the dialog box by clicking the <Auto Range> button, which is located on the
Input Channels tab, when in the “Measurement Mode.”
Play Backward, Play Backward Stop Play Play Forward
One Frame at a Time One Frame at a Time
Change
Task Mode