Design and Testing of a Miniature Variable Buoyancy System for Underwater Vehicles

Elkolali, Moustafa; Al-Tawil, Ahmed; Alcocer, Alex

doi:10.1109/access.2022.3167833

Cited by 5 publications

(3 citation statements)

References 24 publications

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“…Furthermore, it can also monitor feedback parameters about the system through a set of sensors, including an incremental magnetic encoder to monitor the pump rpm, a hall-effect-based current sensor to measure the current draw, and a variable resistive load to track the available volume of fluid in the internal tank. A detailed description of the glider VBS system can be found in [6].…”

Section: F Variable Buoyancy System Control Unitmentioning

confidence: 99%

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Electronics System Design of a Compact Underwater Glider

Al-Tawil¹,

Elkolali²,

Alcocer³

2022

Preprint

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Underwater gliders are power-efficient autonomous vehicles that can gather ocean data for extended periods. Small-sized underwater gliders may be more suitable for operation, deployment, and recovery using unmanned platforms in coastal areas. Designing a light compact underwater glider with a relatively compact battery and confined space makes the electronics hardware system design a significant challenge regarding compactness and power efficiency. This work presents an overview of the electronics system designed to fulfill these requirements.<br>

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Section: F Variable Buoyancy System Control Unitmentioning

confidence: 99%

“…2. A custom-designed hydraulic Variable Buoyancy System (VBS) based on a brushless motor coupled with a pump was used for this prototype and thoroughly described in [6]. The battery assembly is mounted on a dual actuated roll and pitch mechanism acting as the moving mass.…”

Section: Introductionmentioning

confidence: 99%

Electronics System Design of a Compact Underwater Glider

Al-Tawil¹,

Elkolali²,

Alcocer³

2022

Preprint

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“…The energy budgets versus operating pressures were calculated. Moreover, the buoyancy-driven system was checked for any leakage or abnormal deformation under high pressure [25][26][27][28] .…”

Section: Laboratory Testsmentioning

confidence: 99%

Design and experimental research of a novel deep-sea self-sustaining profiling float for observing the northeast off the Luzon Island

Wang

Qiu

Yang

et al. 2022

Sci Rep

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To understand the physical ocean laws of ocean circulation in the deep ocean below 2000 m, a profiling float named FUXING is presented to meet the deep-ocean observation requirements at a depth of 4000 m. First, to meet the low energy consumption and buoyancy regulation stability of the profiling float, the low–power buoyancy adjustment process of FUXING is effectively solved by introducing the external seawater pressure as the driving force. Then, to reduce the energy consumption of the single profile for the profiling float, the optimization of the oil draining adjustment mode in the floating process is studied. Simultaneously, a buoyancy-driven system characterization test was performed to examine the buoyancy adjustment of FUXING. When the frequency of oil draining is 15 times, the total energy consumption of FUXING is the lowest. Finally, FUXING was deployed in the northeast off the Luzon Island to validate the feasibility and reliability. The at-sea experiments indicated that the optimized oil draining adjustment mode can reduce the total energy consumption in the floating process by more than 20%. The profile data showed that the outer sea water gradually mixes with the South China Sea water after passing through the northeast off the Luzon Island.

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