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Teledyne Marine Unveils SeaBat T51-S for High-Resolution Subsea Mapping

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Autonomous and Unmanned Marine Vehicles: USV, AUV, Marine ROV; Profiling Floats & Towed Systems

Teledyne Marine Unveils SeaBat T51-S for High-Resolution Subsea Mapping

Teledyne Marine launches the SeaBat T51-S, a high-resolution subsea multibeam echosounder designed for deep-sea mapping using ROVs and AUVs


Teledyne Marine Unveils SeaBat T51-S for High-Resolution Subsea Mapping

Teledyne Marine has introduced the SeaBat T51-S multibeam echosounder, the latest addition to its T-series, designed specifically for subsea applications.

The SeaBat T51-S has been created to enable deployment on ROVs and AUVs for deep-sea exploration and underwater surveys.

SeaBat T51 S with 800kHz full swath capability & depth rated to 6000m.

The ‘S’ in SeaBat T51-S stands for Subsea, highlighting the multibeam echosounder‘s ability to operate at extreme ocean depths of up to 6000 metres. Encased in a pressure-rated housing, the SeaBat T51-S retains all the advanced features of the original SeaBat T51 while offering enhanced versatility for underwater deployment beyond vessel-based operations. Like other SeaBat multibeam systems, the T51-S extends the portfolio’s capability to extreme depths, ensuring suitability for demanding subsea applications.

Key Benefits of the SeaBat T51-S:

  • Data Quality – The SeaBat T51-S delivers exceptionally clean data with minimal false detections. This ensures highly accurate survey outputs, reducing the need for time-consuming post-processing and manual correction.
  • Advanced Resolution – Offering sharp, detailed seabed imagery, the SeaBat T51-S can detect small objects such as cables, rocks, and boulders as small as 0.3 meters in size, providing a high level of detail for underwater mapping and inspection. This resolution is achieved due to its small receiver beamwidth of 0.25°.
  • Expanded Swath Width – The SeaBat T51-S offers cutting-edge performance with its 170° swath width at 800 kHz, covering a significantly larger area of the seabed in a single pass, increasing efficiency and reducing survey time.
  • Ultimate Automation –The SeaBat T51-S features advanced automated control. The integrated ‘Tracker’ technology automatically adjusts sonar settings in real time, simplifying operation, reducing reliance on specialised expertise, and allowing operators to focus on other critical tasks.

Pim Kuus, Senior Hydrographer and Product Manager at Teledyne Marine, commented, “The SeaBat T51-R is recognised as the best-in-class multibeam system, so anticipation for the new T51-S has been high. We’re happy we can now meet user demand with a system that delivers the highest-resolution subsea mapping while maintaining exceptional data quality.”

SeaBat T51-S will be launched on Teledyne Marine’s stand T7 at Ocean Business 2025. Visitors to the trade show can see the SeaBat T51 in action on ASVs at Teledyne Marine’s dockside area (HS02) and during on-water demonstrations aboard CRC GALAXY.

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Autonomous and Unmanned Marine Vehicles: USV, AUV, Marine ROV; Profiling Floats & Towed Systems

North Falmouth, MA, USA

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