micro-structure turbulence sensor package for the...• seaglider is designed to be extremely...
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KONGSBERG PROPRIETARY: This document contains KONGSBERG information which is proprietary and confidential. Any disclosure, copying, distribution or use is prohibited if not otherwise explicitly agreed with KONGSBERG in writing. Any authorised reproduction in whole or in part, must include this legend. © 2012 KONGSBERG – All rights reserved.
AUT 2015
Perth, Australia
Micro-Structure Turbulence Sensor Package for the
Seaglider™ Autonomous Underwater Vehicle
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Presentation overview
• What is Seaglider™?
• Application for microstructure turbulence sensor
• Sensor integration
• Sea trials and performance
WORLD CLASS - through people, technology and dedication.
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Seaglider™
WORLD CLASS - through people, technology and dedication.
An autonomous underwater vehicle that utilizes wings and
small changes in buoyancy and attitude to achieve
forward motion and navigation
• Very little energy is expended using this form of propulsion.
• No external moving parts are necessary, making it very robust.
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Seaglider™
WORLD CLASS - through people, technology and dedication.
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Why Gliders?
WORLD CLASS - through people, technology and dedication.
Benefits: • Extended duration deployment
• Low capital cost
• Deployment costs are significantly less than traditional
means of obtaining the data that is gathered
• Resulting data provides good temporal and spatial
scales not possible with research vessels or traditional
AUVs
• Most data is retrieved in near real time via satellite
• A wide range of sensors can be integrated into the
vehicle depending on the application
• Vehicle is piloted remotely via the internet and satellite
link
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Study of Air-Sea Interaction & Heat Transfer
in the Ocean
Micro-structure turbulence sensor is an ideal tool for this
application
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Maintaining Efficiency
WORLD CLASS - through people, technology and dedication.
• Seaglider is designed to be extremely efficient at moving through the
water
• A large part of that is the low drag composite fairing
• It is important to minimize parasitic drag when integrating sensors
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Sensor Integration
WORLD CLASS - through people, technology and dedication.
• Kongsberg worked closely with Rockland Scientific International in order
to develop an OEM sensor package that would have minimal impact on
vehicle flight performance
Standard RSI MicroRider
• Length: ~ 1 meter
• Weight: 5.5 kg in air
OEM RSI MicroPod package
• Length: ~ 27 cm
• Weight: 0.3 kg in air
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Seaglider MicroPod Sensor Package
WORLD CLASS - through people, technology and dedication.
Complete package incorporates the following
sensors
• Shear probe
• Fast thermistor probe
• Accelerometer
Main electronics located in pressure housing
mounted in the aft payload bay
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Sea Trials
WORLD CLASS - through people, technology and dedication.
Trials held in Puget Sound, Washington, USA and Loch Linnhe, Scotland
show promising results
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Performance
WORLD CLASS - through people, technology and dedication.
Lateral shear data (blue) from Loch Linnhe shows close correlation to
Nasmyth spectrum up to 70 cpm
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kongsberg.com