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

February 22, 2020

East Coast

NDE users seminar offered at Olson's Rockville MD office

March 10-12 2020

Click here for details

Lightweight Deflectometer

USA Sales: 303.423.1212           Toll Free 1-888-423-1214           International Sales: Click here for Agents
ndt, nondestructive testing equipment, Olson Instruments, quality assurance, geophysical systems, test for unknown foundation depth

Lightweight Deflectometer

deflectometer, railroad bed compaction testing, airport runways, earthen dams
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Scroll down the page to see Key Features and Specifications in the chart below.

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



Olson's LWD-1ยป
Quality Assurance & Quality Control of
Earthwork Projects

Measure in-situ soil modulus to ensure soil compaction requirements are met project wide or subgrade, subbase and roadbase. Designed and engineered at Olson Instrument's corporate office in Colorado, USA, the deflectometer conforms to ASTM E2835-11 standard for plate deflection measurement due to an impulse load.

Importantly, the Deflectometer LWD-1 measures the actual impulse force in order to calculate stiffness (peak force ÷ peak displacement) and modulus based on soil type (granular, clay, or mixed).

The LWD-1 is offered with an optional sunlight viewable touchscreen tablet.



Hands-on training is 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/engineers upon special arrangement.


Applicable to:

  • Roadway Construction: subgrade, subbase and roadbase QA
  • Airport Runways
  • Railroad Track Beds
  • Overlot Fill Grading
  • Parking Lots
  • Earth Retaining Wallls
  • Earthen Dams


  • Stiffness
  • Elastic Modulus


Meets ASTM:

  • ASTM E2835-11

All of Olson Instruments have been researched, tested, and used on-site daily by our sister company, Olson Engineering, world reknowned for NDT consulting. The OE Website is loaded with technical info and project photos using the equipment shown on this website.