 | Claim Listing
If this is your listing you must be registered and logged in to claim. If you are logged in you will see an icon similar to this  to the left that you will click to claim the listing. Once a listing has been claimed it can be edited. You must be logged in to edit a listing. |
| Environmental Technology Listing |
Title of Listing: | | Focused Array Ground Penetrating Radar |
Category: | | Characterization Technologies |
Subcategory: | * | Soil, All Listings |
Media: | | Sediment, Rock, Groundwater |
Contaminants: | | |
Web Site: | | |
Email: | | |
Technology Description: | |
GEO-CENTERS, INC. has developed a patented energy focused array for ground penetrating radar. The array uses transverse electromagnetic rhombic (TEMR) antennas (also patented) to create a line of 4 transmitters which are triggered in a time-domain, wide bandwidth mode centered on 1 GHz to emit radar pulses precisely timed to reach a designated point simultaneously, thus creating a focus of energy at that point from all 4 transmitters. Correspondingly, a parallel line of 4 TEMR elements are gated with equal timing precision to receive only reflections from the focus point. This focusing, taking place in both transmit and receive, is triggered for an matrix of focus points under the width of the 4x2 element tray. Typically, this matrix is set for 16 points every 2 inches across the width of the array for a 30 inch swath and 64 times vertically downwards to an approximate depth of several feet, depending on soil type.
The array can be deployed with a vehicle mount, or manually mobilized. The array processes and images data through a 486 PC with customized software.
The array provides continuous measurement frequencies which can be triggered by forward system movement.
|
| | |
Performance Status/
Limitations: | |
Performance Status:
The array was patented in November 1995 and field tested in December 1995. The system is fully functional and two advanced, pre-commercial, systems are available.
Limitations:
The energy-focused ground penetrating radar detects dielectric contrasts within the ground and is dependent on penetration into the soil as well as sufficient contrast at a boundary between two differing dielectric contrasts. As such, it is best deployed as it is in its present configuration, as part of a multisensor suite which uses other sensors with the radar in a complementary fashion.
Wet and highly conductive soils will affect the detection of metallic objects. In addition, penetration is limited to approximately 18" below ground surface.
|
Topics
Electromagnetic Fields (EMF), Geophysics, Technologies, Characterization
Additional Topics/Tags/Keywords
Radar, Subsurface, Water Table, Stratigraphy |
Organization: | | Geo-Centers, Inc. |
Address: | | 7 Wells Avenue
| Phone: | Description | Number |
City: | | Newton | | Primary | (617) 964-7070 |
State/Province/Territory: | | MA | 2. | | |
Zip/Postal Code: | | 02116 | 3. | | |
Country: | | United States | 4. | Fax: | (617) 527-7592 |
Branch Locations: | |
|
|
|