Banergy Acoustic solutions
ECHOSOUNDERS
Echosounders are used for “bathymetry,” which is the measurement of water depth in oceans, seas, or lakes. Bathymetric surveys are done by hydrographers, working to understand the physical properties of the ocean and other bodies of water. To do that they use echosounder sonars and there are two common types: single beam echosounders and multibeam echosounders.
Doppler velocity systemS
A Doppler Velocity Logger, or DVL, is used to measure the velocity of an underwater vehicle relative to the seafloor. The velocity measurements from a DVL are so accurate that they can be integrated over time to provide a precise position estimate as well. A DVL can detect small changes in movement much better than any of the acoustic positioning systems above, with the caveat that it can’t directly measure absolute position, so it needs input from a GPS or acoustic positioning system occasionally to maintain an accurate position estimate.
Side scan Sonars
Side scan sonar is commonly used to survey large areas of the seafloor. It emits fan-shaped pulses and then listens for the echo response through a transducer that is either mounted to a boat’s hull or towed behind a boat (called a “towfish”). Those pulses are recorded to create slices of an image that are then stitched together. Side scan sonar offers a wide beam, so it allows you to cover large areas in a short period. It is a go-to for object detection and is used on boats, towfish, and UUVs more than ROVs as it tends to need to travel in long straight lines.
Imaging Sonars
Scanning imaging and multibeam imaging sonars are the most common types of sonar used on ROVs. They’re used in low visibility water conditions as a navigational aid, giving the pilot a sense of their location by showing nearby objects, structures, and seafloor details. They can also be used for object detection, such as finding a shipwreck on the seafloor from a distance.
THE SONAR CRYTAL, JEWEL OF KNOWLEDGE. THE EYE THAT SEES THE UNSEEN DEPTHS.
Sonar Technology
Sound Navigation Imaging & Ranging
Sonar is the backbone of underwater sensing. Banergy’s sonar portfolio integrates cutting-edge acoustic technologies with standalone platforms, boat based platforms, ROV and USV platforms, empowering a new era of marine intelligence, exploration, and safety. Our systems include passive sonars, active sonars and underwater object detection and tracking.
We stock and supply variety of sonars for underwater marine applications.
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