Foundation Test Gauge (FTG)

Measure foundation depth and integrity: coring, drilling, or excavating is not required.

The Foundation Test Gauge (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 Foundation Test Gauge 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.

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

Materials Tested:
  • Concrete, Wood
Test On:
  • Concrete Shafts
  • Mat Foundations
  • Driven Piles
  • Timber Piles
ASTM Standards:
  • D5882-07

Key Features & Specifications: Hardware

USB powered FTG device with built in phone plug and BNC connection Impact Source: 3 lb. (1.4 kg) non-instrumented hammer with replaceable tips
Receiver: 1 accelerometer, 100 mV/g Accelerometer microdot cable
Transducer mounting: Grease or dry Test length range: from < 2 ft (0.6m) to > 250 ft (76m), depending on foundation diameter and geometry

Key Features & Specifications: Software

Windows 7 - 10 compatible Automatic integration of accelerometer data to velocity
Automatic depth calculation from user picks of reflector time/frequency Multiple digital filtering options for data cleaning and display
Exponential amplification available (user-selectable) Full user selection of number of waveforms to average
Full user selection of gain and units Automatic file naming feature

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

Save money! Contact Olson when adding on to an existing system, or purchasing multiple systems as some of the components are common to other test methods.

For complete details about any of our products, call our toll free number at 1-888-423-1214 or email Olson Instruments: