Sensors & Software LMX200 Series, User Manual

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Line Scan
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6.2 Acquiring Data
Press the Start button to begin collecting data. The screen will change to the data acquisition
screen. As the system is pushed along a straight line, the collected GPR data scrolls onto the
screen from the right and moves to the left (Figure 6-4).
The depth scale along the side of the GPR Line image and the position scale along the top of the
image are set to Metric or US Standard units based on the setting in the Preferences menu
(
Section 4.1)
A single line cannot be longer than 1000m or 3000 ft. You will receive a warning about line length
just before it hits that limit. If you continue to that limit, data collection will automatically be stopped
and the line will be saved.
If Auto-Hide Buttons is set to ON (
Section 4.1.9), the menu at the bottom of the screen disappears
as soon as you start collecting new data, thereby maximizing the data display area. When the
user stops, backs up or presses a button on the keypad the menu reappears.
Figure 6-4: Line Scan acquisition mode, showing collected data and axis labels. DynaQ indicator is shown at the
bottom above the menu options.
6.3 DynaQ
The LMX200 uses DynaQ, an advanced patented technology that adjusts data quality as the
system movement speed varies. In most situations, moving the system at a comfortable walking
speed generates data of good quality. In situations where target resolution or maximum
penetration depth is critical, moving slower increases data quality.
Depth
Axis
Position
Axis
DynaQ