Gondola for high-speed multibeam echosounder surveying by semi-displacement or planing hull vessels
The high-speed MBES gondola with a hydrofoil strut and optimized hydrodynamic profile addresses speed limitations, enabling accurate surveying at up to 14 knots by reducing turbulence and noise, thus enhancing data quality.
WO2025214952A1 Publication Date: 2025-10-16FNV IP BV
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Patent Information
- Application Number
- PCT/EP2025/059460
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-04-12
- Filing Date
- 2025-04-07
- Publication Date
- 2025-10-16
AI Technical Summary
Technical Problem
Conventional MBES surveying systems are limited to slow speeds due to hydrodynamic limitations of the gondola and vessel design, leading to turbulence and compromised data quality at higher speeds.
Method used
A high-speed MBES gondola with a hydrodynamic profile optimized for speeds greater than 10 knots, featuring a hydrofoil strut segment and flush attachments to reduce hydrodynamic resistance and turbulence, incorporating a multi-head MBES transducer array within a housing with nose and tail fairings.
Benefits of technology
Enables accurate and efficient MBES surveying at speeds up to 14 knots or greater, maintaining data quality by minimizing noise and turbulence, overcoming limitations of conventional designs.
✦ Generated by Eureka AI based on patent content.
Abstract
Unlocking insights from Geo-Data, the present invention further relates to improvements in sustainability and environmental developments: together we create a safe and livable world. Described are systems and techniques for high-speed multibeam echosounder (MBES) surveying using a gondola (200a, 200b) attached to a semi-displacement or planing hull vessel. A housing (230) encloses a multi-head MBES transducer array, with a nose fairing extending from a maximum width of the housing and a tail fairing extending from a minimum width of the housing. A hydrofoil strut segment (225) has first (227-1) and second hydrofoil surfaces (227-2) orthogonal to the housing (230), and includes at a first distal end a coupling (232) for flush attachment to an upper surface of the housing (230) and at a second distal end a coupler portion for attachment to the semi-displacement or planing hull vessel. The first and second hydrofoil surfaces can generate opposing hydrodynamic forces during high-speed MBES surveying by the semi-displacement or planing hull vessel.
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