C/Frex is a producer of high-tech quantum and fluxgate magnetometers, as well as integrated systems based on them. This equipment is used in solving geological, geophysical, environmental, prospecting, and investigative tasks.
The company offers comprehensive solutions for solving problems of engineering geology, prospecting and exploration of mineral deposits, mapping, navigation, object search.
The platforms for magnetometric systems are marine vessels, manned aircraft, unmanned aerial systems, including unmanned aerial vehicles (drones).
A wide range of tasks to be solved, high values of technical and operational parameters of the manufactured equipment, as well as high qualification of the company's specialists allow meeting the most stringent Customer’s requirements.
SEARCH FOR OBJECTS ― determining the location of underwater (sunken) and underground objects ― detection range up to 1,000 m ― location detection RMSD ±10 m ― classification of search objects by magnetic moment
MAGNETIC MAP CONSTRUCTION ― construction of magnetic field maps and its transformant ― auto-compensation of platform interference ― survey accuracy +/- 2 nT ― geological interpretation of survey results
Aeromagnetic survey services
TASKS TO BE SOLVED The integration of our unmanned platforms and magnetometric systems makes it possible to conduct aeromagnetic surveys in remote areas that are difficult to access to solve the problems of regional surveying, geological mapping and mineral prospecting at almost all stages of geological exploration.
BENEFITS ― high magnetic survey speed and accuracy ― detailed flow over the terrain ― precise positioning ― optional equipment installation capability ― operation in remote regions ― aerodrome-free deploying ― mobility ― operation in fog and low cloud conditions ― night operation
Operating and results
Low-altitude aeromagnetic survey using helicopter-type drones is carried out on a scale of 1:2,000 - 1:10,000 with a detailed terrain following in areas of 100-400 km2.
The aircraft-type drone is used to survey more extensive areas on a scale of 1:10,000 or less, when detailed flow around the terrain is not required, which allows flying with general flow at altitudes of 70 m or more from the surface. At the same time, the performance of the aircraft-type drone is up to 1000 km per flight.
After processing the data obtained by our specialists, maps of the anomalous magnetic field and its transformants are compiled, allowing conclusions to be drawn about the features of the geological structure of the territory.
The standard error of the survey does not exceed 1.5 nT, and the accuracy of the planned and altitude reference after differential processing is of 0.1 to 0.5 m
;Helicopter-type drone;Aircraft-type drone
Optimal survey area, km² ;≤ 2000 ;≤ 7500
Optimal daily productivity, linear km ;300 ;800
Recommended survey scale ;from 1:5,000 ;from 1:10,000
Minimum survey height ;20 ;50
Maximum deviation from the route in plan and height, m ;not more than 1.5 ;not more than 4.0
Maximum take-off weight, kg ;45 ;29
Maximum payload equipment weight, kg ;10 ;5
Maximum flight duration, h ;2 ;12
Maximum flight speed, m/s (km/h) ;22 (80) ;30 (110)
Cruising flight speed, m/s (km/h) ;15 (54) ;22-24 (80-90)
Maximum flight range, km ;108 ;1000
Maximum flight altitude, m ;2000 ;2000
Wind speed limits, not more than, m/s ;10 ;15
Ambient temperature range, °C ;from -35 to +40 ;from -35 to +40