Dolphin 6001 USB Specification

The resolution and update speed of the Dolphin Real Time Sonar sets a new performance benchmark for imaging sonar systems. The compact underwater unit weighs only 3.3kg in water allowing the system to be fitted to the smallest Remote Vehicles. The underwater package has a standard eight pin connector, two pins are used for data and two for 24v d.c. power. Additional pins provide for external synchronisation with other acoustic equipment. For example, a Marine Electronics high resolution altimeter can be integrated into the system so that the altimeter does not cause acoustic interference with the sonar. At the surface the sonar output is connected to a small USB interface unit.The USB unit contains the data acquisition hardware to convert the pseudo-video telemetry uplink into a high speed digital data stream.

The system software may be run on virtually any modern "Windows" P.C. provided that the system has support for at least one USB port. By using optimised display techniques the high speed real time display is generated at up to 30 frames per second. The 0.75 angular resolution and 25mm range resolution combine to produce startlingly clear images to rival the best of the mechanically scanned systems but with a huge speed advantage. Raw data may be logged automatically (at programmed intervals), or on demand, to hard disk for post analysis of survey results. Images may be incorporated into reports or pasted into other "Windows" applications. The system may be expanded into an Obstacle Avoidance Sonar (OAS) for AUV's with the addition of the PC104 processing package from the Marine Electronics model 6201 system.

The Dolphin USB Interface unit will operate at full speed when connected to a USB 2.0 port but will also operate at a reduced frame rate when connected to a USB 1.1 port

As the USB Interface is powered from the USB port the system lends itself to being used with a notebook PC. Together with a couple of 12V lead-acid batteries to power the underwater unit this must be the most portable professional multi-beam imaging sonar system available.



Dolphin 6001 USB:

System Specifications

Operating Frequency:
Range Settings:
Range Resolution:
Angular Resolution:
Sample Rate:
Horizontal Beamwidth:

Vertical Beamwidth:

Update Rate (90° Sector):



Data Logging:




USB Interface Unit

Dimensions:


Protocol:
Power Supply:

Input Data Format:



455kHz
10m to 200m in 10m steps
25mm
0.75°
4MHz
Receive: 1.5°(+/-3dB points)
Transmit: 110°
Receive: 16°
Transmit: 20°
10m range, 30 frame/sec
10m range, 28 frame/sec
50m range, 14 frame/sec
100m range, 7 frame/sec
Auto at variable frame rate
Manual, key press on demand





Width: 110mm
Depth: 165mm
Height: 35mm
USB 1.1 and USB 2.0
+5V DC at 200mA typical
(self-powered from USB port)
Pseudo-video (+/-1V peak)
(2MHz bandwidth required)

Underwater Unit

Dimensions:


Weight:

Material:

Power Supply:
Temperature

Operating Depth:
Underwater Connector:
Transmit Pulse Length:
Transmit Power:
Telemetry Link:



Width: 210mm
Depth: 200mm
Height: 100m
7.5kg in air
3.3kg in water
Hard Anodised Aluminium
Polyurenthane
24V DC at 2.6A max
Operating: -5 to 40°C
Storage: -20 to +60°C
500m
MCBH8M (subconn)
30µsec to 1msec
Variable
9600 baud half duplex

Copyright © 2013. Marine Electronics Ltd.