Grid Scan; Define Area Of Interest; Place Grid Mat; Standard Grids - Sensors & Software CONQUEST 100 User Manual

Conquest 100
7

Grid Scan

Grid Scans are collected to ultimately image structures at various depths in the concrete.
Embedded features are revealed as deeper layers (or depth slices) of concrete are viewed.
The following is a simplified step-by-step approach that can be used to investigate a site and
setup a grid using your Conquest 100 system.

7.1 Define Area of Interest

The area of interest can be where you need to drill, cut, or where general information is desired
for a variety of purposes. To make depth slice images, Conquest 100 must acquire data in a
grid pattern. The standard grids can be either metric or imperial units.
The grid sizes available are:
If you have the Conquest 100 Enhanced, there are two additional grid sizes available:
Your specific site will dictate what is practical and where you can operate. In tight corners and
spaces, it may not always be possible to lay out a grid. In this case you may have to collect a
partial grid or use Line Scan mode only.

7.2 Place Grid Mat

Use Line Scan to determine the optimum orientation for grids. For the best resolution of targets,
the survey grid should be aligned perpendicular to any embedded objects in the concrete. If
there are features which run at oblique angles, select the predominant orientation of the rebar
for aligning the grid.
The grid mat should be taped to the structure with duct tape to prevent it from moving during the
grid scan.

7.3 Standard Grids

Conquest comes with US standard (24" x 24") and the metric equivalent (600 mm x 600 mm)
grid mats (Figure 7-1). The units are labeled in the bottom right corner of the grid (make sure
the units on your grid sheet match the units set in Preferences
US Standard
24" x 24"
48" x 48"
48" x 24"
US Standard
96" x 24"
96" x 96"
Metric
600 mm x 600 mm
1200 mm x 1200 mm
1200 mm x 600 mm
Metric
2400 mm x 600 mm
2400 mm x 2400 mm
(Section
75
Grid Scan
5.1.2). This is the