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 deep 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 Low Strain Dynamic Testing method employed by the PIT is fast enough to permit testing of every pile on site.

"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 performs the wave equation-based non-destructive test known as Pulse or Sonic Echo Test, or Low Strain Dynamic Test. The test consists of attaching one or two accelerometers to the foundation, and using a small hand-held hammer to impact it. The PIT 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 three models: PIT-X, PIT-V and PIT-FV.

The wireless PIT-X is the newest, smallest and lightest model.  It is available with one channel of data acquisition (velocity), obtaining measurements from a wireless accelerometer placed on top of the foundation.

PIT-V also reads velocity data from a single accelerometer.  Both PIT-X and PIT-V analyze data in the Time Domain, and are sufficient for most integrity tests.

The two channel PIT-FV reads data from one 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 be used to assess of the depth of an unknown foundation.

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.