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Olson Instruments, Nondestructive Testing Equipment, Nondestructive Evaluation, Olsen | Testing Infrastructure Nondestructively

  NDT, Nondestructive Testing Equipment, Sonic Echo, Impulse Response, Drilled Shafts, Auger Cast Concrete Piles, Bridge Abutments

foundation test Gauge (ftg)

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Key Features and Specifications:
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NOTE: Sonic Echo testing is available as an add-on for the Freedom Data PC and the NDE 360 platforms.

Contact Olson Instruments if you need more information on any of our products.

For a quote, call our toll free number at 1-888-423-1214 or fill out our



Measure Foundation Depth and Integrity
No Coring —No Drilling — No Excavating

The Foundation Test Gauage (FTG) is a small laptop or tablet powered, nondestructive system for measuring the depth and integrity of drilled shafts, driven piles, concrete mats, and timber foundations using the SONIC ECHO principle (also called Pile Integrity Testing or PIT, Low Strain Integrity, and other names).

Requires only minimal training for use — connect the FTG to your laptop or tablet and start testing with Olson's FTG software. The system includes everything you need for testing except for a user-provided Windows 7 - 10 laptop or tablet - including an accelerometer receiver and a non-instrumented hammer.



Hands-on training classes are available for all of our NDE test methods at our Wheat Ridge, Colorado (USA) location, which is a suburb located appromately 15 minutes northwest of downtown Denver. Training may be available at your location by one of our agents upon special arrangement.


Materials Tested:

  • Concrete, Wood

Applicable on:

  • Concrete Shafts
  • Mat Foundations
  • Driven Piles
  • Timber Piles

ASTM Standards:

  • D5882-07