Measurement-computing WaveBook rev.3.0 Instrukcja Użytkownika Pobierz pdf (Strona 129)

WaveBook User’s Manual,

5-20-99

PostView 6-15

PostView Timebase

PostView automatically detects and displays the data file timebase along the X-axis at the bottom of the

PostView window. The timebase can be displayed as relative time or as absolute time in the format:

00:00:00.0 (hour/minute/second/tenth). The timebase format of absolute or relative can be selected in

PostView’s Option pull-down menu, or by using Ctrl+A or Ctrl+R respectively.

Note: PostView automatically displays milliseconds (ms) or microseconds (µs) when applicable to

acquisition programs that make use of such time scales. Aside from selecting the absolute

timebase (if desired) no user action is required in regard to the timebase display.

Two Points About the PostView Timebase

•

When a data file is loaded into PostView for the very

first time, the relative timebase format will be used.

• You cannot select absolute timebase when the data file

has no timebase. In this case PostView will

automatically use relative time.

PostView Timebase Creation

The following figure illustrates a partial timebase in the relative format. Note that the user could switch to

absolute time with Ctrl+A on the keypad, or by selecting Absolute time from the Options pull-down menu.

The example below resulted from a ChartScan/1400 using ChartView software.

Example of a PostView Timebase

Note: For many data acquisition programs, trigger point (t = 0) may not be the first point in the data file.

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Measurement-computing WaveBook rev.3.0 Instrukcja Użytkownika Strona 129