DRONE AND AIRBORNE MAGNETOMETERS

To submit a repair request, please provide the device serial number, date of purchase, and a detailed description of the issue, including operating conditions when the failure occurred. Include contact details of the operator who identified the problem.

An Overhauser magnetometer AeroSmartMag will suit your project best - it is reasonably priced, delivers excellent performance, and does not require complex post-processing such as micro-levelling. You can obtain an anomalous magnetic field map simply by correcting for daily variations. A Cesium magnetometer AeroQuantumMag is also a good option, especially if you need data with finer spatial sampling. Please look at the overview information on our specially dedicated page: UAV or contact us and we will send you presentations where you will find even more information

The main differences are sample rates thus flying speed, heading error, dead zones and power consumption. See table for detailed explanation.

Both magnetometers have advanced built-in GNSS receivers that allow centimeter accuracy in PPK of RAW GNSS data. This additionally requires either a separate GNSS base or our base magnetometer SmartMag or SmartQuantumMag.

Simply provide us with the drone’s mounting specifications. We can either deliver the correct mount directly or supply a ready-to-print 3D model for local production. Either way, you’ll be able to start your project smoothly and on schedule.

Advantages:

-Speed and efficiency — drones can cover survey areas much faster than ground methods.

-Access to challenging terrains — enables surveys in areas that are difficult or dangerous for ground crews (swamps, cliffs, etc.).

-Profile consistency — flight lines are easily kept straight and evenly spaced thanks to autopilot and terrain-following systems. On the ground, this is harder to achieve, especially in forested or mountainous areas.

-Cost reduction — fewer field staff and less time are required compared to ground surveys or manned aircraft.

Disadvantages:

-Increased sensor altitude — the sensor operates further above the ground than in terrestrial surveys, which naturally attenuates and smooths weak, localized anomalies.

-Limited flight time — batteries require frequent replacement or recharging.

-Sensitivity to weather — strong winds reduce flight stability and data quality.

-Regulatory restrictions — UAV flights are subject to strict national regulations in many countries.

For small areas and junior exploration projects, the setup is straightforward. All you need is:
- UAV magnetometer AeroSmartMag  https://geodevice.co/product/asm/ ,
- SmartMag base station https://geodevice.co/product/smartmag/  for diurnal correction,
- a rented drone with a pilot and a terrain-following/obstacle-avoidance system (not required if the area is flat and open),
- calm weather without wind.
With this setup, you can perform a drone-based magnetic survey, use our software to apply diurnal corrections, and produce an anomalous magnetic field map — exactly what is needed to evaluate the prospectivity of a site.
In addition, we offer the AeroSmartMag UAV magnetometer + MaxiMag walking magnetometer bundle https://geodevice.co/product/mm_asm/ , which enables both drone-based surveys and detailed ground measurements.

Not always. Terrain-following helps to keep the magnetometer at a constant height above the ground, which is especially important:
- in areas with rugged topography
- when searching for low-gradient anomalies, where even small altitude variations can “blur” the signal.
On flat terrain, or when targeting strong anomalies, terrain-following can be safely omitted.
In addition, terrain-following is not only about data quality and accuracy, but also about flight safety: accounting for elevation changes and detecting obstacles reduces the risk of collisions. We provide solutions for both terrain-following and obstacle avoidance https://geodevice.co/product/attf/ , ensuring reliable and safe surveys even in challenging environments.

To make sure the magnetometer stays intact while landing the drone please have a look at the video:
Please follow the steps described below while landing the drone:

• Slow down when assending
• Stop on the way down and allow personnel to catch the magnetometer first, before it hits the ground
• Make sure the presonnel leaves the landing pad
• Slowly decend and land on pad

Of course. Many examples in the form of maps and charts can be found in our presentations and on our website. Contact us, and we will provide you with presentations and raw data from our numerous field tests. This way you can get familiar with our convenient data format and, most importantly, with the quality of the results.