Development of Pressure Type Underwater Glider
Date Issued
2009
Date
2009
Author(s)
Wen, Quan-Yu
Abstract
The principle of the traditional buoyancy engine used in the underwater glider, is to use a screw rod to push a bladder, so that the inflow/outflow of the water volume in the water chamber is controlled by the bladder volume change. In this paper, the design and test of a underwater glider with pressure type buoyancy engine is conducted. The pressure type buoyancy engine is consisted of a tank with high pressurized liquid CO2, and a balloon in a buoyancy control water chamber. Through the electronic control valves and piping design, the vaporized CO2 would flow in (or out )of the balloon so to push the water out (or in) of the water chamber, eventually increased (and decrease )the buoyancy force of the glider.he vertical lift /sink distance is monitored and controlled by a microprocessor and water depth pressure sensor to minimize the power consumption of the battery.n order to avoid any malfunction and for the sake of recycling, an airbag is connected at the tail of the glider, which is controlled by an independent micro-controller, so that the airbag would inflate at time preset in advance, enable the glider to resurface. series of test in the towing tank and field test in the reservoir have been conducted to verify the feasibility of this concept. Testing result shows that the concept of the design is satisfied.
Subjects
Underwater Glider
Pressure Type Buoyancy engine
Micro-controller
Buffer chamber
Type
thesis
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