Research - Buckingham Research Group

DeepSound

Contents
Description
Specs
Media

Description
DeepSound is a high-bandwidth acoustic recording, free-falling system designed to profile ambient noise from the surface to depths of 9 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 bouyancy.

Specs
	DeepSound Mk I	DeepSound Mk II
Glass Sphere	Vitrovex 17 " diameter Depth rating 9 km 231 N bouyancy	Vitrovex 17 " diameter Depth rating 9 km 231 N bouyancy
Hydrophones	ITC 6050C 2 Hydrophones separated vertically by 1/2 meter spacing Sea state zero with -157 dB re 1v/uPa 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 -165 dB re 1v/uPa 2 to 30 kHz omnidirectional response Built-in low noise 20 dB preamp
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
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
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
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
Tracking	Novatech Argos Beacon AS-900A NovaTech Xenon Flashers ST-400AR NovaTech Radio Beacon RF-700AR Channel 160.725 MHz	Novatech Argos Beacon AS-900A NovaTech Xenon Flashers ST-400AR NovaTech Radio Beacon RF-700AR Channel 159.480 MHz

Media

Pictures

DeepSound Mk I

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DeepSound Mk II