Geoscan 401 Geophysics
Geoscan 401 Geophysics
Complex with a quantum magnetometer for an aeromagnetic survey.
Unique unmanned system for aeromagnetic surveying with quantum magnetometer.
Overview
The Geoscan 401 Geophysics aeromagnetic system combines the benefits of the Geoscan 401 industrial quadcopter and a quantum magnetometer with a rubidium magnetic field sensor.
This UAV system allows operation at a low altitude both in flat terrain and in a more complex landscape.
With the Geoscan 401 Geophysics system you can measure a magnetic field using a multi-elevation survey. New data analysis method allows creating a high level of fidelity for geomagnetic models.
UAV survey method is most useful for mid-sized areas from 10 to 500 km2. At this point, this method is financially viable if compared with manned aviation (planes, helicopters) and saves time on the survey.
Instructions:
Technology overview
UNMANNED MAGNETIC SURVEY
WITH AERIAL DRONE
- Automatic flight mode
- Proximity flight with close-to-the-ground maneuvering
- Zero own magnetic field affection
AUTOMATED
DATA PROCESSING
- Pre-filtering
- Magnetic variation stations data usage
- Data geo-referencing with two-dimensional uniform grid interpolation
VISUALIZATION,
ANALYSIS AND EXPORT
- Creating magnetic field maps with isolines
- Export to .geotiff file
Work stages
Method efficiency
Aeromagnetic survey is usually performed at 36 km/h (10 m/s) and at altitudes from 25 to 500 m. Max flight time depends on multiple conditions, and usually is close to 1 hour. This is enough to perform 22 km of survey routes including necessary manoeuvres.
Max deviation from planned flight route is 0.6 m. Using spare batteries makes possible to perform 16-22 flight in one day, which results in 250-330 km surveyed.
Max. flight route length
Up to 330 km in 1 day
Geoscan magnetometric system
Combines key advantages of autonomous UAV and quantum magnetometer with rubidium sensor. It can perform a precise aeromagnetic survey at extremely low altitudes in any terrain conditions due to proximity relief-follow flight.
With Geoscan Geophysics system you can explore volumetric parameters of magnetic field. This is possible using altitude-differential survey and vertical profile calculation. New data analysis and interpretation methods allow creating geomagnetic models with breakthrough authenticity level.
Learn more about aeromagnetic survey
Key advantages
Less interference affection
On-foot survey is largely affected by surface interference, thus decreasing measurements accuracy.
Precise relief contouring
The system can perform precise aeromagnetic survey at extremely low altitudes in any terrain conditions due to proximity relief-contouring flight.
Multi-level magnetic measurements
Ensures highest level of precision when defining object's shape and position.
Data comparison
ММС-214 aviational magnetometer was used in 1988 to perform survey on the same site, where Geoscan 401 Geophysics system was applied in 2017. The results comparison is presented below:
Abnormal magnetic field
АН-2, ММС-214
Survey scale 1:25 000, 1988
Geoscan 401 Geophysics
Survey scale 1:10 000, 2017
Magnetic field vertical gradient
АН-2, ММС-214
Survey scale 1:25 000, 1988
Geoscan 401 Geophysics
Survey scale 1:10 000, 2017
Survey experience in Kazakhstan
Control without RC transmitter
Geosсan Planner software allows to create flight missions for areal surveys of terrain and linear objects in different flight modes (point-by-point, areal survey, etc.). You can easily switch different base maps, upload your own maps, terrain models and photo plans to kml. or kmz. formats.
The software will automatically generate flight mission, send flightpath to UAV and track real-time flight status. All you need is to select the area on the map or upload your flightpath.
Main specifications
Flight time:
up to 40-45 min (with magnetometric equipment)
Max. route lengt:
22 km (per one flight)
Wind resistance:
12 m/s
Cruise speed:
up to 50 km/h
Dimensions:
While folded: 70х25х20 cm
Ready-to-flight: 150х150х43 cm
Min. safe flight altitude:
From 25 m
Max. flight altitude:
500 m
Operating temperatures:
from -20 to +40 °С
(optional expansion up to -40 °С is possible)
Motors:
electric, brushless
Take-off:
vertically, automatically, from platform 5x5
Magnetometer specifications
| Sensitivity | 1 pT/√HZ |
| Measurement range | 20000 nTl – 100000 nTl |
| General deviation error | < 0,3 nTl |
| Measurement frequency | 1000 Hz |
| Feedback loop bandwidth | 30 Hz |
| Sensor angle range | ± 45° |
| Operating temperature range | from – 20 to + 40 °С |
Basic package consist of :
- Unmanned aerial vehicle (UAV) Geoscan 401
- Battery with a protection system - 3 pc.
- Triple-system (GPS/GLONASS/BeiDou) GNSS receiver with dual band (L1/L2) antenna
- Geoscan Geoscan GeoShark quantum magnetometer
- Spares and accessories kit
- Flight management(or ground control station) software : Geoscan Planner
- Radio link modem
- Charger
- UAV transport container (IP67, size: 80x52x31 cm, gr.wt.: 16 kg)
- User's Manual
Operator Training in St. Petersburg
- Introduction to Geoscan UAV & workflow
- Flight planning & management with Geoscan Planner
- Practical work in the field
Extra
- Upgraded photogrammetric camera 45 MPix
- Metashape Professional software
- «Arctic» modification (extends temperature range to -40..+20 °С )
- Gamma-ray spectrometer GS-1
Additional software
Geoscan Planner
Mission planning software which makes precise relief contouring possible for Geoscan 401 Geophysics system.
Agisoft Metashape
Geospatial data processing software to create accurate digital terrain models.
Learn more about Metashape
1 Year / 80 flights warranty
System operation training course
