A variable baseline full tensor magnetic field gradient measurement device has been developed to meet the requirements for sensing magnetic characteristics of UAV mounting platforms and ground targets. The system prototype and product application effects are shown in Figure 8.1 and Figure 8.2.

The advanced nature of this product 

①Compared with the existing manual magnetic survey, the magnetic detection efficiency is increased by more than 50 times 

②Compared with the existing fixed-wing aeromagnetic survey, the test cost is reduced by more than 10 times 

③Compared with existing magnetic detection technology, the types of magnetic features available are increased by 3 times 

Key technologies 

①Deep impact current magnetization-synchronous sampling technology 

②Three-axis vector magnetic sensor orthogonality correction technology 

③Geographical information-magnetic feature fusion technology 

Technical indicators 

①Magnetic field resolution: 3 nT 

②Magnetic field range: ±20μT 

③Positioning error: 2 cm

④Communication protocol: LTE, Wi-Fi 

⑤Dynamic refresh rate: 50 milliseconds 

⑥Magnetic field gradient resolution: 5 nT/m 

⑦Magnetic field noise spectral density peak: 9 nT/sqrt(Hz)@1 Hz 

Technical features and advantages 

①High precision: nanometer-level magnetic measurement accuracy, centimeter-level positioning accuracy 

②High efficiency: dynamic data return, real-time magnetic feature analysis 

③Multiple features: scalar-vector-tensor comprehensive magnetic feature collection 

④Low cost: low manufacturing cost, low maintenance cost 

⑤Standardization: can be scaled up and industrialized 

⑥Miniaturization: With the function of being portable or equipped with a small drone 

Scope of application and market analysis 

①Military industry leadership: magnetic anomaly detection for underwater/surface ships, underground unexploded ordnance, vehicles and other magnetic target positioning equipment. 

②Aerospace pilot: spacecraft magnetic signature analysis equipment, technology and services, and assessment of orbit deviation risks caused by the geomagnetic field.

③Industry promotion: Provide resource exploration units with UAV aerial exploration technical services and equipment for iron, cobalt, nickel and other magnetic minerals.

④Military-civilian integration: Provide municipal construction units with submarine tunnels, land reclamation surface subsidence monitoring, early exploration and post-maintenance monitoring services for municipal operations.