Other

Darrell R Word

Dennis M Anderson

John A Lopez

William J Ehni

John W Lundstrom

Dave B Straley

Michael Caisse

Rod Sorenson

Ingo Cyliax

The instrument utilizes at least one electromagnetic signal transmitter and at least one electromagnetic signal receiver with the receiver detecting a receiver signal responsive to the transmitter signal and indicative of subterranean details adjacent to the instrument. The instrument is attachable to a tow vehicle for transport and includes a GPS antenna and tags data gathered by the instrument with GPS position information. The instrument is formed in modular sections which can be removably attached for collapsing into a smaller space and to allow for flexible configuration of the instrument in various different ways. A wheeled carriage is provided to carry the instrument over the ground. Antennas for the transmitter and receiver, as well as circuitry and cooling systems are all provided to supply the instrument with high resolution and a clear signal indicative of the position and characteristics of subterranean details of interest.

Electromagnetic subterranean imaging instrument

The object of the Electrical Density Gauge (EDG) invention is to provide a low cost, portable, non-nuclear, and rugged field-use device that measures dry density in soils that have been constructed for use as road-beds and building foundations. This data is used to ensure the quality control of the constructed foundation. The electrical properties of soil are measured at a radio frequency using probes driven into the soil. To calibrate EDG, certain algorithms of these electrical properties are related to physically measured wet densities and unit weights of water for a plurality of calibration test spots. Correlation regressions are found, that are used to convert values of the electrical properties measured at unknown field test spots into values of dry density.

Electrically measuring soil dry density

Growing community of inventors

Leander, TX, United States of America

Darrell R Word