
Acquiring in Automatic Mode from the Instrument Control Panel
Voyager
™
Biospectrometry
™
Workstation User’s Guide 6-45
6
A search pattern file is an ASCII text file that contains a list of
relative X,Y position pairs with respect to the center of the
current sample position measured in microns, that represent
points in the sample position.
On a 100-position plate, a sample position is 2,540 µm in
diameter with the origin (0,0) at the center of the position. The
centers of the sample positions are 5,080 µm apart.
Figure 6-17 illustrates the location of different coordinates.
The system sequentially reads each entry in the search
pattern file as it analyzes a sample. The first entry in the file is
the first position analyzed, the second entry is the second
position analyzed, and so on.
Figure 6-17 Location of Coordinates in a Sample
Position on a 100-Position Plate
Units in search
pattern files
The default units for X,Y coordinates in search pattern files is
microns.
You can also specify X,Y coordinates in step units. To convert
microns to steps, divide the micron value by 3.175.
If you specify steps, include the following as the first line in the
.SP file:
Units=1
Y
X
0,0 1270,0-1270,0
0,1270
0,-1270
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