Tangra GeoMagne Radar 2D/3D-System was specifically designed and developed for archaeologists, treasure hunters, civil engineers and geological prospectors and will offer the best results.
GeoMagne Radar are devices widely used for measuring the Earth's magnetic field and in geophysical and archaeоlogical surveys, with aim to detect subsurface magnetic anomalies of various types. Such anomalies often are a result of human activity. Places as smithies, fireplaces, remains of old or ancient buildings are discoverable by using magnetometers since these places usually concentrate metal objects and residues. Places, where there are buried remains of buildings and man-made objects formerly exposed to fire are typically notably different in magnetic properties than their surroundings. Another example is ancient moats and earthworks because they also are a result of mixing soils with different magnetic properties. Ancient pottery is often made of clay with high iron oxides content, especially these with magnetic properties. That makes them discoverable due to the ability of such a clay (provided they have been heated up to temperatures above their Curie point - 769 degrees Celsius) to retain specific levels of magnetic properties of the place and time of its production and technology used. All these facts and properties of the materials are used in Archaeomagnetic dating of natural or man-made structures and objects.
Despite the fact that changes in Earth's magnetic field strength may not vary much through time, these changes can be efficiently measured by using contemporary magnetometers.
By using geomagnetic methods, surveyors can successfully localize ditches, burial and cult pits, ceramic and metallurgical furnaces and fireplaces, piles of slag, household and construction ceramics,
remains of adobe buildings, remnants of burnt clay or stone buildings, excavations for foundation walls, iron objects, minerals. Magnetometers are very effective in inspecting low mounds and the areas around them. Potentially, using a magnetometer one can detect any mineral containing iron.
Magnetometers may be useful in determining the location of certain types of rock formations, rich in iron minerals, but not necessarily iron ores. These include, for example, basic and ultrabasic rocks – basalt, diorite, ophites, amphibole and massive sulphide formations, as well as such rich in pyrite or pyrrhotite. Other minerals that may be searched for using magnetometers are kimberlites – most common host for diamond deposits. Under certain conditions, it is possible to use magnetic measurements to track alluvial deposits of spilled gold associated with black sand (ferromagnetic minerals). In some cases, rich alluvial sands may contain magnetite. Quite careful analysis of magnetometer data obtained may result in proving increased level of iron minerals content. Currently the most commonly used magnetometers for archaeological purposes worldwide are the Fluxgate gradiometers, that have precision around 0.1 - 1 nT.
Survey of an archaeological site is mainly measuring the strength of Earth's magnetic field in as many as possible points of its area. The depth and type of the anomaly defined by the magnetometer depends on how sensitive the particular model is and how close and stable it moves above the ground surface. GeoMagne Radar is exactly this type of device - fluxgate gradiometer with a measurement accuracy of 0.1 to 1 nT.
Magnetometers have been used for exploration at numerous archaeological sites around the world to detect such features as buried walls and structures, pottery, bricks, roof tiles, fire pits, buried pathways, tombs, buried entrances, monuments, inhabited sites, and numerous objects submerged in water such as ships, ballast stones, iron, cannon, amphora, various potsherds, etc. Most of these objects were detected and mapped as a result of their being more magnetic than the surrounding or covering material. A few features such as certain buried walls and tombs were not, themselves, magnetic, but displaced a uniformly magnetic soil which presently covers them. Still other sites both historical and archaeological have iron objects which are easily detectable.
The data collected through measuring magnetic field strength in a given area is not always easy to read and understand properly. Surveyors must be able to interpret data correctly and be experienced with this type of measurements and know how to work properly with the device, and based on the analysis to conclude whether it is appropriate for further work. Magnetometer is an important research tool that works well when searching for certain types of deposits, but will not always be useful in unsuitable geological conditions. Always magnetometers used in combination with other equipment give amazing results.
Sensors 2, 1-axis digital sensors Built-in
Processor Microcontroller 8-bit RISC-based Microcontroller.
Rechargeable battery(10 pcs pack) Type Ni-MH (10-AAA-1.2v)
Performance 1000 mAh 12V Internal operating voltage 5,0V Battery run-time 48 hours
Charging time 3 h with mains adapter
Charger Input voltage 240/110V Charging current 2,4 -12 V
Dimentions and weight of probe:
Length - 93 cm (extended) 65 cm (collapsed)
Total dimentions (L/W/H) 65/15/20 cm
Weight – 1kg
Storage temperature -20° to + 60°C
Working temperature -10° to + 50°C
Relative humidity 5-95%, non-condensing, non immersible in liquids
Notifications - LED indicators (operation, Bluetooth connection)
Android OS tablet: