Demonstration Data - Sensors & Software CONQUEST 100 User Manual

Conquest 100
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Demonstration Data

Demo Data is pre-loaded on all Conquest 100 systems, and is found in the Demo Project folder
(from the main screen, press the minus button when you are in Project 1). The Demo Project
folder contains 1 line and 1 grid.
From a learning point of view, it is recommended to see the effect of changing display
parameters (zoom, depth, calibrating velocity) on the line data. For the grid, it is useful to move
down through all the depth slices to see how features come into focus, then disappear. As well,
correlating hyperbolas on the line scans and seeing how they appear on the depth slice images
helps to build confidence in what you are seeing.
The following is a brief description of what the data contains:
Line 1
The 30m long line shows data collected on a concrete deck. There is a top mat of rebar spaced
about 25cm apart, as well as some randomly spaced rebar located beneath it. There are two
sections (centered at 6.5m and 25m) where the rebar spacing gets close together. In particular
at the 25m position, the rebar is noticeably much denser. This area is located over a column
and there is also a post-tension cable running along the collected line. This is the angled
feature which slopes away from the column, as the GPR sensors runs parallel to the post-
tension cable. This is very typical of construction practice where:
a) Areas over a column are more heavily reinforced
b) Post-tension cables move lower in the slab between columns
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Demonstration Data