Description
The MagArrow II is the second generation of our best-selling UAS-enabled magnetometer and it’s setting a new standard for UAS magnetic surveys. The MagArrow is engineered to simplify surveys that are difficult due to the various limitations of pilot-on-board surveys and ground surveys. The MagArrow is a robust yet flexible system that can adapt to changing field conditions and new user workflows.The MagArrow consists of an aerodynamic, light-weight shell with internal electronics including the MFAM™ magnetic sensors, GPS, and IMU. The MFAM™, a two sensor module inside the MagArrow is our most groundbreaking magnetometer yet, capable of highly precise measurements in an extremely lightweight and tiny package.
Operation in the field is simple. Survey details are programmed into the user’s UAS software of choice. The MagArrow is turned on, and once airborne, preprogrammed GPS waypoints carry the MagArrow in altitude stable survey lines. Once work is completed, data from the MagArrow can be wirelessly downloaded to a computer.
The MagArrow can be attached easily to a wide variety of enterprise UAS’s, and the MagArrow’s 1000 Hz sample rate and synchronized on-board GPS allow it to function independently of the UAS and the UAS software. With such a fast sample rate, surveys can be completed at speeds up to 10 m/s with samples collected every 1 cm. Revolutionize your magnetic surveying capabilities with the Geometrics MagArrow!
Helpful MagArrow Resources
Bulletin - MagArrow Browser Interface MagArrow Compensation Flight Instructions MagArrow, MFAM, G-864 Survey Manager Walkthrough
Features and benefits
- No Drop-outs!: Reliable high quality data no matter the sensor orientation.
- UAS Agnostic: Attachable to most enterprise UAVs
- Lightweight: Weighs only 1.2 kg for easy deployment.
- Self-Contained: GPS, storage, and WiFi on board. No data connections to UAV needed.
- Super-Fast Sampling Rate: Fly faster and filter out UAV motor noise.
- Long Battery Life: 2 hours of battery life will outlast multiple UAV flights. Hot swappable
- New! External Power Button: No need to open the compartment to reset or cycle power.
Technical Details
MagArrow Magnetometer Specification List
Suspension System FAQ
Since the MagArrow Magnetometer only weights 1.2 kg it will have little impact on your 3-5 kg payload drone flight time.
Our MagArrow uses a MFAM Sensorto provide high quality magnetic data with noise/sensitivity range of only 5 nT. Most people have suspended the system with non-magnetic cables to remove the magnetometer from the magnetic influence of the drone itself. Some customers have decided to build a fixed frame to mount the system but generally it isn't large enough to remove the magnetometer from the drone's magnetic effects so there will need to be advanced filtering to compensate the magnetic field readings. Either option is acceptable.
Our MagArrow uses a MFAM Sensorto provide high quality magnetic data with noise/sensitivity range of only 5 nT. Most people have suspended the system with non-magnetic cables to remove the magnetometer from the magnetic influence of the drone itself. Some customers have decided to build a fixed frame to mount the system but generally it isn't large enough to remove the magnetometer from the drone's magnetic effects so there will need to be advanced filtering to compensate the magnetic field readings. Either option is acceptable.
Current Software and Firmware
Export License FAQ
Heading Error Compensation Flight FAQ
To perform a heading error compensation flight, fly the UAV with MagArrow attached up to 100-150 meters in a low gradient area. Hover the drone in a single spot and rotate it slowly through 360 degrees while logging magnetic data the with MagArrow. By keeping the drone location stationary the mag field will be also be constant. Thus we are only left with the sensor reading as a function of orientation.
The MagArrow has two MFAM sensors, and the way they are arranged ensures that when one sensor is in its dead zone the other is at its optimum orientation, and vice versa. The readings from the two sensors are combined to produce one magnetometer reading only. The two sensor readings are weighted such that as one sensor approaches its dead zone it is weighted much less (down to zero in the dead zone) while the optimum oriented sensor is weighted more fully. Thus you get only one magnetometer reading with no dead zones whatsoever. In addition, the weighted averaging of the sensors still does partial heading error cancelling.
The MagArrow has two MFAM sensors, and the way they are arranged ensures that when one sensor is in its dead zone the other is at its optimum orientation, and vice versa. The readings from the two sensors are combined to produce one magnetometer reading only. The two sensor readings are weighted such that as one sensor approaches its dead zone it is weighted much less (down to zero in the dead zone) while the optimum oriented sensor is weighted more fully. Thus you get only one magnetometer reading with no dead zones whatsoever. In addition, the weighted averaging of the sensors still does partial heading error cancelling.
Magnetic Compensation
Altitude FAQ
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MagArrow II Shipping Weights & DIMS
Downloads
TYPICAL USES
- In-Accessible Terrain: Difficult of dangerous terrain is no problem for the MagArrow, making it perfect for surveying wetlands, heavily vegetated areas, extreme terrain, or protected lands.
- Environmental: Find abandoned wells, pipes, and storage tanks quickly and with precise positioning.
- Archaeology: Survey vast distances and leave potential archaeology sites undisturbed with the MagArrow.
- Geology: Survey for regional variations in the magnetic field with the MagArrow.
- UXO Detection: Traveling at high speed with a fast sample rate, our MagArrow is the perfect tool to survey sites for detection and delineation of UXO.
Analysis Software
