SELF-COMPENSATING MAGNETOMETER (SCM)
OFG offers the only Self-Compensating Magnetometer (SCM) system that can operate with the sensor mounted inside an AUV, ROV, HAUV, USV, or ASV to acquire high resolution magnetic data that is automatically compensated and corrected to remove the effects of the vehicle in the magnetic field.
Our internally mounted magnetometer and propriety software help you avoid the data discrepancies and operational challenges that result from towed or pole-mounted magnetometers.
3-component compensated vector data
Real-time magnetic compensation
Mounted directly on vehicle
No knowledge of IGRF required
This figure compares the raw magnetic data (left) with the compensated data (right) produced by our patented technology. Our system transforms magnetic data in real-time so that you get meaningful and interpretable information from your magnetometer.
The SCM system is comprised of a 1000m or 6000m depth rated sensor, vehicle calibration procedure, and a proprietary software algorithm that computes a set of correction coefficients to deliver your compensated and corrected magnetic data in real-time.
Environmental baseline surveys
Geological domain and lithology definition
3D magnetic susceptibility inversion models
Buried pipeline and cable tracking
Ship signature management
Chains, cables, anchors
SYSTEM INTEGRATION AND OPERATION
Simple and robust data exchange between SCM software and host vehicle
ASCII messages over Ethernet UDP/IP
User-configurable UDP ports
Single standard subsea connector for power and data
Low power consumption suitable for AUV integration
<1 W sensor power draw
No expertise with magnetic data processing is required to calculate the magnetic signature and compensation coefficients in order to remove the varying field of the vehicle.
No knowledge of local magnetic reference field (IGRF) is required by the sensor or the user to calculate and apply the compensation coefficients.