Step 6: Calibrate The Concrete Type; Step 7: Depth Slice Image Computation; Step 8: Working With Depth Slice Images - Sensors & Software Conquest Series Manual

Conquest
5.6

Step 6: Calibrate the Concrete Type

The Concrete Type must be calibrated after Grid Scan collection to obtain clear depth slice
images and accurate depth estimates. Processing the data without determining the Concrete
may give a fuzzy image. It is instructive to try several values for the Concrete Type to see the
impact of not calibrating properly.
Details on determining the Concrete Type are described in Help > Grid Scan > Scan the Grid.
5.7

Step 7: Depth Slice Image Computation

A key feature of Conquest is its ability to transform the raw sensor information into a series of
sliced images versus depth in the material. In general, depth slice images are generated after all
the lines in the grid have been collected, but images can also be generated when a partial grid
has been collected. This is useful when the grid area is smaller than the grid mat or when part of
the grid is obstructed so not all the lines can be collected.
Small grids can usually be processed in less than one minute. Larger grids may take several
minutes.
Details on generating Depth Slice images are described in Help > Grid Scan > View the
Results.
It is not necessary to reprocess data every time you want to view it. Once a grid has been
processed, the images are always immediately available by selecting Slice View from the main
menu or from the Grid Scan menu.
Any time the Concrete Type changes, the grid scan data should be reprocessed as this value
affects image clarity and depth estimates.
While the GPR Depth Slice images are generated, the PCD data are processed to generate a
PCD image that is displayed in the Slice View menu.
5.8

Step 8: Working with Depth Slice Images

Working with the maps generated by your Conquest system will help to increase your expertise,
knowledge base and proficiency. You may find it somewhat difficult initially to understand the
display if you are not used to viewing 3-D information. The display is designed to let you slice
through the concrete volume in 3 directions.
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5-Line Scans and Grid Scans