DeepSound

DeepSound is a high-bandwidth acoustic recording, free-falling system designed to profile ambient noise from the surface to depths of 12 km. The recording platform is autonomous and descends under gravity at 0.5 m/s to its pre-programmed maximum depth, where a burn wire releases a weight, permitting the system to return to the surface under its own buoyancy.

Movies

DeepSound III Deployment During Sea Trials

DeepSound III Recovery During Sea Trials

DeepSound II and DeepSound III Deployment during Challenger Deep Expedition

Audio

Recording of an Implosion within the Challenger Deep by DSII

Recording of the Implosion within the Challenger Deep by the R/V Falkor’s ship hydrophone

Pictures

000 001 002 deepsound2predive_lrg DSCN0228-1 DSCN0237 DSII_weights DSIII_weights-1

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Specs:

DeepSound MK I DeepSound MK II DeepSound MK III
Glass Sphere Vitrovex

  • 17″ Diameter
  • Depth rating 9 km
  • 231 N buoyancy
Vitrovex

  • 17″ Diameter
  • Depth rating 9 km
  • 231 N buoyancy
Vitrovex

  • 17″ Diameter
  • Depth rating 12 km
  • 200 N buoyancy
Hydrophones ITC 6050C

  • 2 Hydrophones separated vertically by .5 m spacing
  • Sea state zero with -157 dB re 1v/\muPa
  • 30 to 75 kHz omnidirectional response
  • Built-in low noise 20 dB preamp
HTI-94 SSQ

  • 4 Hydrophones separated horizontally by 4 cm spacing
  • Sea state zero with -157 dB re 1v/\muPa
  • 2 to 40 kHz Omnidirectional response
  • Built-in low noise 20 dB preamp
HTI-99-DY

  • 4 Hydrophones separated horizontally and vertically
Sensors Paroscientific Pressure Sensor 9000-20K 

  • Temperature compensated
  • Pressure 0-14 km
  • Pressure performance .01% accuracy of full scale
  • 1 x 10
  • High stability and reliability

SBE 38 Digital Oceanographic Thermometer

  • stabitility of 0.001 C
  • 10,500 meter titanium housing
  • -5 to +35 C

No conductivity sensor

FSI Standard 2″ MCTD

  • Compact conductivity, temperature, and depth meter with direct digital output
  • Temperature compensated
  • Pressure 0- 9 km
  • Pressure performance accuracy .02%
  • Temperature -2 to +32 C
  • Temperature accuracty 0.002 C
  • Conductivity 0-7.0 S/m
  • Conductivity accuracy 0.0002 S/m
Valeport MIDAS SVX2

  • Direct reading sound veracity profiler with CTD
  • Titanium housing
  • Pressure 0-12 km
  • Fast response PRT temperature sensor
Embedded PC Arcom Apollo EBX 

  • Low power Intel Pentium M
  • Fan-less operation
  • 13 Watts
  • Harddrive 150 GB
Kontron 986LCD-M/mITX

  • Low power Celeron M 1.06 GHz
  • Fan-less operation
  • 5 Watts
  • Solid state harddrive 128GB
VIA EPIA N700-05LE

  • Low power 500MHz VIA EdenTM ULV
  • Fan-less operation
  • Solid state hard drive 250GB
A/C National Instruments NI PCI-4462

  • 4 simultaneously sampled analog inputs
  • Sample frequency 204.8 kHz
  • 114 dB dynamic range
  • 24 bit resolution
National Instruments NI PCI-4462

  • 4 simultaneously sampled analog inputs
  • Sample frequency 204.8 kHz
  • 114 dB dynamic range
  • 24 bit resolution
National Instruments NI PCI-4462

  • 4 simultaneously sampled analog inputs
  • Sample frequency 204.8 kHz
  • 114 dB dynamic range
  • 24 bit resolution
Power OceanServer Technology BA95HC

  • 4 Lithium Ion
  • 95 Whr
  • 14.4 Volts
  • 6.6 Ah
  • Ek05 Battery Controller
  • ATX regulated DC
OceanServer Technology BA95HC

  • 4 Lithium Ion
  • 95 Whr
  • 14.4 Volts
  • 6.6 Ah
  • Ek05 Battery Controller
  • ATX regulated DC
OceanServer Technology BA95HC

  • 4 Lithium Ion
  • 95 Whr
  • 14.4 Volts
  • 6.6 Ah
  • Ek05 Battery Controller
  • ATX regulated DC
Tracking Novatech Argos Beacon AS-900ANovaTech Xenon Flashers ST-400ARNovaTech Radio Beacon RF-700AR

  • Channel 160.725 MHz
Novatech Argos Beacon AS-900ANovaTech Xenon Flashers ST-400ARNovaTech Radio Beacon RF-700AR

  • Channel 160.725 MHz
Telonics TGE-401 GPS/ARGOS instrumnetation w/ VHF

  • Channel 160.725 MHz