GTK-RF-M350 Aircraft magnetometer

The GTK-RF-M350 multi-rotor UAV aerial magnetometry system is equipped with a high-precision optical-pump magnetometer and a three-axis fluxgate magnetometer, featuring real-time and post-processing aeromagnetic compensation, with a total system weight of only 1.5 kg. Leveraging the multi-rotor UAV's ultra-low-altitude terrain-following flight capability, it can acquire high-resolution aeromagnetic data in areas difficult for personnel to access, such as high mountains, dense forests, and strong surface-interference zones, achieving a daily survey efficiency of 50–100 km. The system supports synchronous acquisition of various optical-pump data, including cesium, absolute, and potassium optical pumps, and can be adapted to a VTOL fixed-wing platform.

Product Overview

Functions

The system supports ultra-low-altitude terrain-following flight surveys; it is equipped with an optical-pump magnetometer (resolution 0.0001 nT) and a three-axis fluxgate magnetometer; it features real-time and post-processing aeromagnetic compensation (post-processing compensation standard deviation better than 0.08 nT); it integrates a laser altimeter (180 m range), RTK GNSS (2 cm positioning accuracy), and a high-precision IMU attitude module; the accompanying ground-station software supports automatic route planning, diurnal variation correction, quality evaluation, and rapid mapping.

Measurement Parameters

Resolution 0.0001 nT, sensitivity 0.6 pT/√Hz (absolute) / 10 pT/√Hz (locked), bandwidth 100 Hz, range 1000–100000 nT, probe dimensions 12.7×16.4×20.5 mm; three-axis fluxgate: range ±100 μT, noise 10 pT rms/√Hz, orthogonality ±0.2°; laser altimeter: 180 m / resolution 1 cm / accuracy ±10 cm; RTK GNSS: 2 cm; onboard dynamic noise 0.08 nT; ADC 24-bit, sampling rate 1/2/5/10/20 Hz adjustable; total system weight 1.5 kg, power consumption 15 W.

Product Gallery

Ordering Information

GTK-RF-M350

Application Cases

Mineral Resource Exploration

Online Monitoring

Cross‑hole investigation

Hydrogeological Survey

Engineering Geology Investigation

Subsurface Environmental Monitoring

Key Selling Points

Technical Specifications

Submodel 1	GTK-RF-M350
Sensor Configuration	Optical-pump + Fluxgate
Measurement Mode	Total-field Aeromagnetic
Resolution	0.0001nT
Sensitivity	0.6pT/√Hz
Dynamic Range / Range	1000~100000nT
Gradient Tolerance	—
Sampling Rate	1/2/5/10/20Hz
Positioning & Timing	RTK GNSS 2cm
Data Storage / Output	USB/WiFi
Operating Temperature	—
Main Unit / Payload Weight	1.5 kg (Aeromagnetic Payload)
Protection Rating	—
System Power Consumption	15W
Max Take-off / Flight Altitude	5000m
Max Flight Speed	15m/s
Post-processing Comp. Std. Dev.	<0.08nT
Daily Survey Efficiency	50~100km

Accessories and Attachments

Standard configuration used to replace the standard high-precision optical-pump probe, suitable for aeromagnetic surveys with conventional accuracy requirements.
Specifications: Micro optical pump

Resolution: 0.0001 nT

Features: Standard accuracy, low-cost solution

Ordering Information

Material Code	Model	Product Name	Structure Type	Core Material	Primary Use	Applicable Device
M-MAG11	OPM-SENSOR-STD	Standard Optical-Pump Probe	Micro Optical Pump	Rubidium Optical Pump	Standard Aeromagnetic Survey	GTK-RF-M350

For UAV route planning, real-time monitoring, data processing, and mapping.

Specifications: Windows platform

Functions: Route planning, real-time monitoring, data download, diurnal variation correction, aeromagnetic compensation, contour map generation

Ordering Information

Material Code	Model	Product Name	Specifications	Appearance Material	Primary Use	Applicable Device
M6.6002	UAV-GCS	Ground Station Software	Windows Version	Software	Route Planning / Real-time Monitoring / Data Processing	GTK-RF-M350

For silent flight in plateau areas or noise-sensitive zones, reducing noise and improving plateau flight efficiency.

Specifications: Plateau silent

Features: Plateau-adapted, low noise

Ordering Information

Material Code	Model	Product Name	Specifications	Appearance Material	Primary Use	Applicable Device
M6.6005	PROP-2112	2112 Plateau Silent Propeller	2112 Spec	Plastic / Carbon Fiber	Plateau Silent Flight	GTK-RF-M350

For converting the multi-rotor aeromagnetic system into a vertical take-off and landing (VTOL) fixed-wing platform, achieving longer endurance and wider-area coverage.
Specifications: Fixed-wing conversion

Features: Vertical take-off and landing, long endurance, wide coverage

Ordering Information

Material Code	Model	Product Name	Specifications	Appearance Material	Primary Use	Applicable Device
M6.6008	VTOL-KIT	VTOL Fixed-Wing Conversion Kit	Fixed-Wing Platform	Carbon Fiber	Long-range Wide-area Aeromagnetic	GTK-VTOL

Product Overview

Functions

Measurement Parameters

Product Gallery

Technical Specifications

Submodel 1	GTK-RF-M350
Sensor Configuration	Optical-pump + Fluxgate
Measurement Mode	Total-field Aeromagnetic
Resolution	0.0001nT
Sensitivity	0.6pT/√Hz
Dynamic Range / Range	1000~100000nT
Gradient Tolerance	—
Sampling Rate	1/2/5/10/20Hz
Positioning & Timing	RTK GNSS 2cm
Data Storage / Output	USB/WiFi
Operating Temperature	—
Main Unit / Payload Weight	1.5 kg (Aeromagnetic Payload)
Protection Rating	—
System Power Consumption	15W
Max Take-off / Flight Altitude	5000m
Max Flight Speed	15m/s
Post-processing Comp. Std. Dev.	<0.08nT
Daily Survey Efficiency	50~100km

Accessories and Attachments

Standard configuration used to replace the standard high-precision optical-pump probe, suitable for aeromagnetic surveys with conventional accuracy requirements.
Specifications: Micro optical pump

Resolution: 0.0001 nT

Features: Standard accuracy, low-cost solution

Ordering Information

Material Code	Model	Product Name	Structure Type	Core Material	Primary Use	Applicable Device
M-MAG11	OPM-SENSOR-STD	Standard Optical-Pump Probe	Micro Optical Pump	Rubidium Optical Pump	Standard Aeromagnetic Survey	GTK-RF-M350

For UAV route planning, real-time monitoring, data processing, and mapping.

Specifications: Windows platform

Functions: Route planning, real-time monitoring, data download, diurnal variation correction, aeromagnetic compensation, contour map generation

Ordering Information

Material Code	Model	Product Name	Specifications	Appearance Material	Primary Use	Applicable Device
M6.6002	UAV-GCS	Ground Station Software	Windows Version	Software	Route Planning / Real-time Monitoring / Data Processing	GTK-RF-M350

For silent flight in plateau areas or noise-sensitive zones, reducing noise and improving plateau flight efficiency.

Specifications: Plateau silent

Features: Plateau-adapted, low noise

Ordering Information

Material Code	Model	Product Name	Specifications	Appearance Material	Primary Use	Applicable Device
M6.6005	PROP-2112	2112 Plateau Silent Propeller	2112 Spec	Plastic / Carbon Fiber	Plateau Silent Flight	GTK-RF-M350

Features: Vertical take-off and landing, long endurance, wide coverage

Ordering Information

Material Code	Model	Product Name	Specifications	Appearance Material	Primary Use	Applicable Device
M6.6008	VTOL-KIT	VTOL Fixed-Wing Conversion Kit	Fixed-Wing Platform	Carbon Fiber	Long-range Wide-area Aeromagnetic	GTK-VTOL