For the next installment in our series of technical articles, ADCP manufacturer Nortek and scientists at NOAA bring us a case study on the use of moored ADCPs from Antarctica.
Pop-Up Buoy Recovery System
DeepWater Buoyancy’s Pop-Up Buoy Recovery System (PUB) allows for direct retrieval of seabed packages, such as anchors, anchor lines, and bottom-mounted frames and instruments. Easily mounted to any framework, the assembly sits on the seafloor until the acoustic release is activated. Once the release completes its disconnection, the buoy lifts free from the canister and rises to the surface. A synthetic line connects the buoy directly to the framework of the seabed item and allows for retrieval.
The buoy is outfitted with an electropolished 316 stainless steel frame. The canister holds 75 meters of 1/4″ synthetic line. (Other line lengths are available upon request.) The recovery buoy is made from high-strength DeepTec® solid syntactic foam. The foam is finished with an abrasion-resistant, polyurethane elastomer coating.
The canister subassembly is made from PVC and 316SS plate. It has a rugged design and has attachment features to permit various mounting configurations, including easy mounting to our BTM-AL50 tripod bottom mounts. Our standard recovery systems are designed to work with Benthos, EdgeTech, iXblue and Sonardyne products shown below. We also offer custom recovery systems.
BTM-AL50-B Collapsible Bottom Mount with Teledyne SentinelV ADCP and DeepWater Buoyancy Pop-Up Recovery Buoy System
DeepWater Buoyancy Pop-Up Recovery Buoy System mounted on leg of BTM-AL50-B Collapsible Bottom Mount 
DeepWater Buoyancy Pop-Up Recovery Buoy System mounted on leg of BTM-AL50-B Collapsible Bottom Mount 
Pop-Up Buoy with Syntactic Collar removed showing Teledyne Benthos R500 Acoustic Release
Pop-Up Buoy with Syntactic Collar removed showing Teledyne Benthos R500 Acoustic Release
Pop-Up Buoy clamping detail showing Benthos 875 Acoustic Release.
Pop Up Recovery System with Edgetech PORT-LF SD 
Installing EdgeTech PORT-LF SD into DeepWater Buoyancy Pop-Up Buoy Recovery System.
EdgeTech PORT-LF SD Acoustic Release in Pop-Up Buoy Recovery System.
Installation of Sonardyne LRT into DeepWater Buoyancy PUB-LRT.
Sonardyne DORT Pop-Up Recovery System shown unassembled with acoustic release installed.
Sonardyne LRT installed into a DeepWater Buoyancy PUB-LRT.
iXblue Oceano 500 Acoustic Release Pop-Up on a BTM-AL50 Tripod Bottom Mount
Pop-Up Buoy Recovery System with iXblue Oceano 500 Acoustic Release
Sonardyne DORT Acoustic Release Pop-Up Recovery System for seafloor bottom mounts.Related Media
Instrumenting a Mooring Webinar
Looking to learn more about subsea mooring of instruments? Join the upcoming Teledyne Marine Link webinar.
2020 Oceans Conference and Exhibition
DeepWater Buoyancy is co-sponsoring and exhibiting at the 2020 Oceans Conference and Exhibition virtual event.
Related Products
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UpdatedInstrument Bottom Mounts
Whether your bottom mount requirement is for a mid-frequency or high-frequency ADCP, we can accommodate you. These diver-serviceable units can be produced to accept your ADCP, battery, CTD, acoustic modem or other instrument. The popular BTM-AL50 is now offered in both welded and collapsible versions.
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Trawl-Resistant Bottom Mounts
These TRBMs may be deployed by free-fall, or by a diver or ROV. They have a double axis gimbal inside a buoyant recovery pod, and are designed to permit retrieval of all mounted instruments. An optional Spectra line pack can be provided for recovery of the base for turnaround deployments. Our TRBMs are available in depths of over 500 meters. We also offer disposable concrete bases.
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