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  3. LAUV Fridtjof

LAUV Fridtjof

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LAUV Fritdjof karusell

  • Equipment named Fridtjof Lauv

LAUV Fridtjof description

LAUV Fridtjof

LAUV Fridtjof is the vehicle suitable for bathymetric mapping and bottom imaging. An average person can carry and deploy it from the side of a small boat. A directional sonar in its bow enables basic collision avoidance maneuvers.

It is controlled remotely by a smartphone with the manufacturers app. Dune based mission planning simplifies the operation of this instrument. Consider allowing some time for planning, compass calibration and buoyancy control.

TECHNICAL SPECIFICATIONS

Vehicle length: 180cm

weight in air: 25.8kg

Max operational depth 100m

Battery: Li-ion 4x 173.6Wh

Speed: from 0.5 to 2m/s

Typical endurance: 8h at full throttle

Data storage capacity: 16Gb and 64Gb

COMMUNICATIONS

WLAN up to 1 km with the Manta modem

GSM within 3G coverage

Evologics S2CR 18/34 USBL underwater acoustic modem for a link up to 1km, depending on water conditions. 

Iridium SBD module

Emergency acoustic pinger and directional hydrophone with up to 2km range

Attitude and heading reference system (AHRS) aided by DVL.

External USB pen drive

SENSORS

Main CPU: AMD Geode LX 800 CPU

IMU: Microstrain 3DM-GX4-25

High definition downward looking camera Lumenera Le165 and LED ligthing

Sidescan sonar: Deepvision OSM2

Doppler velocity logger: Nortek DVL 1MHz

Forward looking sonar Imagenex 852

User computer: Nvidia Jetson TX1

APPLICATIONS
Acoustic geographical mapping

Bathymetry photo-mosaic

bottom-lying target identification Rough benthos and substrate characterizations

PROJECTS WHERE LAUV FRIDTJOF IS OR HAS BEEN USED

Arven etter Nansen

Entice

AB334 course in Ny Ålesund, Svalbard

Biological courses in Slettvik

15 Dec 2021
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