Using Electrical Impedance Spectroscopy (EIS) the SDG’s measurement permits separation of the effects of density and moisture content on the response of the soil to electromagnetic probing. The density or compaction level is measured by the response of the SDG’s electrical sensing field to changes in electrical impedance of the material matrix. Since the dielectric constant of air is much lower than that of the other soil constituents, as density/compaction increases, the combined dielectric constant increases because the percentage of air in the soil matrix decreases. The SDG performs a calculation on the measurement data that enables the device to report the soil’s density and moisture content.
TransTech’s Soil Density Gauge (SDG) utilizes state of the art technology to get accurate soil density readings.
Features
- Meets ASTM D7830 – Standard Test Method for In-Place Density (Unit Weight) and Water Content of Soil using an Electromagnetic Soil Density Gauge
- Full color graphics driven user interface, 480×640 VGA touch screen display with LED backlight for easy visibility.
- New Status Bar Feature, Display GPS status, battery voltage, low battery and date and time.
- Rugged new case design made from .090" 5052 aluminum, powder-coated gloss black with green reflective vinyl graphics increasing driver awareness to road workers at night.
- New Data Management Feature, quickly access, download or delete your project data
- Ability to upload and download files to SDG via USB drive.
- Fast, reliable, accurate and repeatable reading in real time, User friendly, in-process, cost effective tool for any crew member.
- And most important, Non-Nuclear means no Badges or Licenses and No storage or transport concerns.
Check out a report written by the US Army Corp of Engineers, comparing the SDG versus traditional methods for determining field soil content.
Hoskin Environnement
Hoskin Géotechnique
Hoskin Instrumentation
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