Non Nuclear Soil Density Gauge - EDG

The Electrical Density Gauge (EDG) is a nuclear-free alternative for determining the moisture and density of compacted soils used in roadbeds and foundations.
The EDG is a portable, battery-powered instrument capable of being used anywhere without the concerns and regulations associated with nuclear safety.
Its user-friendly, step-by-step menu guides the user through each step of the testing procedure and cautions the user when values do not correspond to established curves for the material being tested.
Easy-to-use, the EDG can be used as a construction aid to monitor day-to-day compaction operations by providing performance and measurement results highly comparable to those achieved with traditional methods, including the nuclear gauge and/or a sand-cone and oven moisture test combination.
When conducting a test, the EDG measures and displays the results for wet and dry density, gravimetric moisture content, and percent compaction.

Non-nuclear soil density gauge replaces the traditional nuclear densitometer method, soil desiccation method,

SAND-CONE method and other density measurements with similar precision.

It mainly used to measure the physical properties of the compacted soil, including of density, moisture and compaction percentage.

Applicable locations include subgrade and foundation, embankment and fillers, underpasses and basements, backfilling and ditches, landfills and so on.

No environmental problems or nuclear safety issues through acquiring, holding, storage, transport, and nuclear waste disposal.

The operators of this detector need no special qualification or professional training.

It’s simple, easy to use, the measurement process with results can be completed efficiently within 2~3 minutes.

Soil may distribute unevenly but won’t affect measurement results.

Construction measuring also has higher accuracy. 

Time Domain. Reflectometry, TDR, a measuring method to soil moisture and density, the principle is stepped electromagnetic pulses emitted by the TDR pulse generator into the soil through four metal nails.

As propagation times and voltage signals were collected, the calculation of soil’s conductivity and soil’s dielectric constant are available.

Soil moisture and density are deriving from these two parameters, and the results are displayed on the screen of gauge.

It also can further increase the accuracy of measurement results with a temperature sensor we provided.