Dual-sensor core
A fluxgate magnetometer is tightly paired with motion sensing so attitude and platform dynamics can be treated as part of the measurement chain.
Prototype subsea magnetometer
Compact magnetic survey sensing for demanding subsea work.
TrueMag brings fluxgate measurements, tightly coupled motion sensing, and sub millisecond platform time synchronization over Ethernet into a small subsea-ready instrument concept.
The survey constraint
Better magnetic data starts with control over motion and timing.
Subsea survey operators need magnetometer instrumentation that fits existing AUV and ROV platforms while placing the sensor where the magnetic measurement is the strongest. That means supporting full-ocean-depth systems as well as smaller shallow-water, coastal, and transition-zone platforms, without relying on distant platform IMUs or imperfect motion compensation.
TrueMag tightly couples magnetic and motion sensing at the instrument level, preserving the data needed to push system performance further.
Measurement architecture
Compact hardware with synchronized survey data.
Small installation envelope
The complete unit fits in a Ø29 mm x 140 mm cylindrical housing, with a 6000 m full-ocean-depth target rating for established AUV standards.
Ethernet and NTP
A direct Ethernet interface and NTP synchronization align sensor data with the platform time base and simplify integration into modern payload networks.
Multi-sensor operation
Networked timing and data access support synchronized multi-sensor installations, including compact gradiometer configurations.
Prototype evaluation
Verified performance figures will be supplied with evaluation material. The analysis workflow builds on multi-year subsea magnetometer experience.
Case study
Buried offshore wind export cable detection
A compact prestudy on whether a low-noise AUV magnetometer can detect and position buried subsea power cables.
Case study
AUV UXO and mine-like target detection
A short feasibility note on survey altitude, target magnetic moment, and when passive magnetometry is credible for underwater ordnance screening.
Evaluation inquiries
Discuss subsea survey fit, integration, and prototype access.
UXO survey
Cable detection
Cable tracking
Marine minerals
Geophysical survey