
Line Scan
RD1500 Operation Manual
46
© Radiodetection 2016
Selecting
Small
will show more of the smaller hyperbolas and more detail, whereas
Large
will
focus more on the larger targets with better depth penetration. Selecting
All
will show a
combination of small, medium and large targets.
Figure 8-12: FrequenSee
™ settings: a) Top left shows
All
. b) Top right set to
Small
targets. c)
Bottom left set to
Medium
targets. d) Bottom right set to
Large
targets
Soil Cal
Soil calibration (also known as velocity) is a parameter used to ensure that measured depths
are accurate. The best way to ensure this is by using the hyperbola-fitting method, since it is
based on data collected in the area.
Crossing linear targets like pipes or cables at a 90 degree angle produces a hyperbola suitable
for soil type calibration. The Soil Cal value obtained will be used to compute a depth estimate of
a target.
NOTE: These depths will be
incorrect
if the soil type is calibrated on a target hyperbola
produced at an oblique angle, rather than 90 degrees.
Press
Soil Cal
. The menu at the bottom of the screen will change, giving you the option of
either specifying a Soil Type or adjusting the Soil Cal using the hyperbola-fitting method
If there are no targets to calibrate to, and you know the type of soil, press:
Summary of Contents for RD1500
Page 5: ......
Page 47: ...Line Scan RD1500 Operation Manual 42 Radiodetection 2016 Figure 8 7 Varying displayed depth ...
Page 81: ......
Page 93: ......
Page 95: ......