Technology

Standard OBS

The OBS on deck is ready for operation.
The OBS on deck is ready for operation. (Photo: Kasper Fischer, RUB and Mechita Schmidt-Aursch, AWI)
Deployment of the DEPAS OBS.
Deployment of the DEPAS OBS. (Photo: Mechita Schmidt-Aursch, AWI)
DEPAS OBS after emerging at the sea surface.
DEPAS OBS after emerging at the sea surface. (Photo: Mechita Schmidt-Aursch, AWI)
Number of instruments max. 68
Geophone, gimbal-mounted Güralp CMG-40T, 60 sec - 50 Hz
Hydrophone HighTechInc HTI-04-PCA/ULF, 100 sec - 8 kHz
Digital data recording unit Send Geolon MCS, 24 bit, 1 - 1000 Hz, 20/32 GB
Acoustic release transponder Kum K/MT 562 and Kum K/MT 8011M onboard unit
VHF radio beacon Novatec RF-700A1 and Seimac DR500 bearing receiver
Xenon flashlight Novatec ST-400A
Floating unit Syntactic foam
Frame and pressure tubes Titanium alloy
Anchor Iron
Maximum deployment depth 6000 meters
Maximum deployment duration 19 months
Dimensions (excl. flag and beacons) 1.65 m x 1.30 m x 0.72 m
Dimensions (incl. flag and beacons) 2.80 m x 1.30 m x 0.72 m
Weight (excl. anchor) in air / in water 340 kg / -30 kg
Weight (incl. anchor) in air / in water 405 kg / 27 kg
Transport 12 units per standard sea container

 

 

Deep-sea OBS

Deep-sea OBS after emerging at the sea surface.
Deep-sea OBS after emerging at the sea surface. (Photo: Ingo Grevemery, GEOMAR and Mechita Schmidt-Aursch, AWI)
Number of instruments max. 12
Geophone, gimbal-mounted Güralp CMG-40T, 60 sec - 50 Hz
Hydrophone HighTechInc HTI-04-PCA/ULF, 100 sec - 8 kHz
Digital data recording unit Send Geolon MCS, 24 bit, 1 - 1000 Hz, 20/32 GB
Acoustic release transponder Kum K/MT 562 and Kum K/MT 8011M onboard unit
VHF radio beacon Novatec RF-700A1 and Seimac DR500 bearing receiver
Xenon flashlight Novatec ST-400A
Floating unit Syntactic foam
Frame and pressure tubes Titanium alloy
Anchor Iron
Maximum deployment depth 7300 meters
Maximum deployment duration 8 months
Dimensions (excl. flag and beacons) 1.45 m x 1.31 m x 0.72 m
Dimensions (incl. flag and beacons) 2.57 m x 1.31 m x 0.72 m
Weight (excl. anchor) in air / in water 320 kg / -30 kg
Weight (incl. anchor) in air / in water 385 kg / 27 kg
Transport 12 units per standard sea container