Sensors & Software Conquest Series, Руководство пользователя

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5-Line Scans and Grid Scans Conquest
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5.2 Step 2: Use Line Scan mode to get main structure orientation
Line Scan mode is used to help get a relative idea of what lies beneath before you start your
survey. The Conquest system allows you to acquire data along a straight line and examine the
information. From the principles of operation section (Section 4: P9), you will have a sense of the
information that you will see on the screen. Flat boundaries such as the bottom of the concrete
will appear as flat bands (Figure 4-9) whereas localized features such as rebar and conduits will
appear as inverted V’s (Figure 4-5).
Details on Line Scan mode are described in Help > Line Scan .
Push the sensor along a straight line and you will see the concrete response scrolling on the
screen as you move. The data will scroll as fast as you move. It is best to go at a uniform slow
speed rather than going fast and jerky because irregular motion may reduce data quality.
Line Scan data are saved to a maximum line length of approximately 6.4m (21 feet). If a Line
Scan is longer than this length only the last 6.4m (21 feet) is saved.
Backup Indicator: Line Scan mode incorporates a unique backup feature. Move the sensor
backwards and an arrow on the screen will appear over the collected data and keep moving to
the left of the screen as long as you are moving backward (see Figure 5-1).
Figure 5-1:Line Scan mode data display. Stopping and backing up displays a Rollback arrow that can be
used to pinpoint the location of a target.
Move forward and the arrow moves forward. New data will not be collected until you reach the
point where you stopped and backed up. For example, if you pass a feature in the concrete,
simply roll the sensor back until the arrow appears exactly over it. The feature is located at the
center of the sensor. You can mark it off and continue data collection.