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© 2015 Proceq SA
Area Scan
Area scan allows a 2D visualization of an element based on pulse veloc-
ity, transmission time or distance measurements.
The measurement grid is defined in ‘Settings.’ If the expected variation of
the measured parameter is not known then select ‘Auto color range.’ This
may be subsequently adjusted in the explorer.
If the expected range is known, the color range may be defined by setting
a maximum value and a minimum value.
e.g. The German guideline RI-ZFP-TU for Non-Destructive Assessment
of Tunnel Inner Shell Thickness specifies a measurement grid of 80 cm.
The purpose of the test is to determine areas of reduced thickness in
tunnel shells and also to locate possible voids between the tunnel shell
and the rock surface.
Setting the result to distance allows areas of reduced thickness to be
easily identified.
The cursor position indi-
cates the position of the next
measurement. Ensure that
this aligns with a grid drawn
out on the test structure. You
may drag the cursor to the
position on the grid where
you wish to start measuring.
Arrows indicated the direc-
tion of proceeding with the
measurement.
It is possible to drag the cur-
sor to another location on the
grid in order to avoid obsta-
cles etc. It is also possible to
drag the cursor back to previ-
ous measurement and either
delete it, or measure it again.
In the example below meas-
urement #71 is indicated and
may be deleted or repeated.
If the measurement is repeat-
ed by pressing the snapshot
button, the previous value is
overwritten. The black areas
were excluded by dragging
the cursor to the next posi-
tion to be measured.
#71
0.339 m
