66 Chapter 5
Data Processing and Display
Spreadsheet File Data
The header of a spreadsheet file gives the following information:
• Date and time data was
acquired
• Reference date and
time
• Device descriptor (The user may enter a descriptor after clicking
the Details button in the Data Management area.)
• Measurement
Type
• Group
index
•
Gain
• Spatial
resolution
• Frequency Domain Window status
• Number of data
points
•
Decimation
Only the units and parameters selected (checked) in the File > Select File Options
dialog box will be contained in a spreadsheet file. The parameter name and the units
are given at the top of each spreadsheet column.
Displaying Two Parameters in Lower Graph
The user may display two parameters in the lower graph area by clicking on Options
> Lower Graph > Two Plots. A check mark by this sub-menu item means Two
Plots have been enabled. The lower graph will then display two parameter selection
pull-down menus in the Title Bar, as shown in Figure 5-4 below. Note that there
are also two X-axes, one for each parameter. Only the data in Trace A may be
displayed in two plots.
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