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

[youtube https://www.youtube.com/watch?v=7p06gNjpmsw&w=560&h=315]

DeepSound III Recovery During Sea Trials

[youtube https://www.youtube.com/watch?v=svDDF0U-tVU&w=420&h=315]

DeepSound II and DeepSound III Deployment during Challenger Deep Expedition

[youtube https://www.youtube.com/watch?v=j_3MKVlQvdU&w=560&h=315]

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

10366039_10100263449088001_5000642664056238827_n 10857849_816562805073851_6969633342979824956_n barclay-bevans-lab_lrg deepsound2predive_lrg on-watch_lrg

 

 

 

 

 

 

 

 

 

 

 

 

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