Deepglider Specifications

Deepglider Specifications

Deepglider glides slowly through the ocean propelled by buoyancy control and wing lift to alternately dive and climb along slanting glide paths. It dead reckons under water between GPS navigation fixes obtained at the sea surface to glide through a sequence of programmed waypoints. It transmits all data collected and receives commands via satellite data telemetry, exposing its antenna above the sea surface for a few minutes between dive cycles.

Deepglider range is sufficient to transit entire ocean basins in missions lasting more than a year while diving continuously to as deep as 6000 m. Gliders are routinely launched and recovered manually from small boats with a crew of two, avoiding costly reliance on ships. Operation costs a few dollars per kilometer of distance travelled to obtain high resolution profiles of physical, chemical, and bio-optical variables and estimates of depth-averaged current and surface current.

Deepglider was developed by the University of Washington School of Oceanography based on the successful Seaglider design from UW. It heralds a revolution in deep-water AUV oceanographic applications.

Size Body: 1.8 m long, 30 cm max. diameter
Wing span: 1 m
Antenna mast length: 1 m
Maximum Depth 6000 meters
Maximum Range/Duration 10,000 km (250 dives to 6000m depth)
Batteries Lithium primary, 24V and 10V packs, 16.5 MJ
Typical Speed 20-50 cm/s (0.4-1.0 kts)
Glide Angle 14-45°(1:4 to 1:1 glide-slope)
Sensors Sea-Bird temperature-conductivity
WET Labs fluorometer-optical backscatter
Aanderaa Optode dissolved oxygen
Variable sample rate by sensor and depth range, both dive & climb
Mechanical Features Carbon-fiber hull with passive compressible fluid compensation
No external moving parts
Low drag, flooded fore & aft fairings for external sensors
Electronic Features 1 GB Compact-FLASH memory
4 serial data channels available
1 frequency data channel available
RF Data Telemetry Iridium satellite data telemetry
Software Features Complete data transmitted after every dive
Control and system commands transmitted on any dive
Guidance & Control Dead reckoning between GPS fixes using pitch, roll, heading
Kalman filter prediction for mean and oscillatory currents
Altimeter and bathymetry map systems for near-bottom dives

 

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