The Pile Integrity Tester gives peace of mind that a pile or shaft is free
of major cracks and voids, prior to construction of the superstructure. It may be used on most concrete or
wood foundations. The PIT may also be used to test piles integral in the structure, such as those supporting
existing bridges or towers, and may assess their length.
The PIT performs the wave equation-based non-destructive test known as
Pulse or Sonic Echo Test, or Low Strain Dynamic Test. With the PIT, the test is performed fast, potentially making
it possible to test every pile on a job site.
The PIT test consists of attaching one or two accelerometers to the foundation, and using a hand held hammer to
impact it. The PIT collects the acceleration data and displays curves that reveal any significant changes in
cross section that may exist along the shaft.
The PIT-W software
post processes the data and generates reports, while the
PIT-S software
simulates a PIT test and performs simplified signal matching to assess the shape of the foundation.
The Pile Integrity Tester is available in 4 models, with one (PIT-X and PIT-V)
or two (PIT-X2 and PIT-FV) channels of data acquisition:
PIT-X and PIT-X2 are small and light, and read data from wireless accelerometers.
PIT-V and PIT-X read velocity data from a single accelerometer and analyze data
in the Time Domain; this is sufficient for most integrity tests
PIT-X2, used in 2 velocity mode, enables the tester to analyze data from 2 accelerometers;
this may be useful for determining unknown foundation length.
PIT-FV reads data from one (traditional) accelerometer and one instrumented hammer or from two accelerometers.
It permits force and velocity analysis in the Frequency Domain for a more thorough evaluation of the
integrity of the foundation and allows the investigation of defects near the pile top. PIT-FV may also
be used to assess of the depth of an unknown foundation.
Find out which model is right for you here.
"We saw the specs but nobody among us could imagine that the PIT-X is so tiny and light. Congratulations."
Dr. Ing. Oswald Klingmüller, GSP, Germany
PIT accelerometers may be top
or side
mounted, and are available as traditional or wireless (for PIT-X)
.
Hand-held hammers – instrumented (for PIT-FV) or not - are supplied in various sizes and weights.
All models of the Pile Integrity Tester are battery powered, operated through a high visibility touch
screen, and include a Fast Fourier Transform (FFT) feature and a license of PIT-W Standard Software. All comply with
ASTM D5882-07
and many other codes and specifications.
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