Dolphin 3001 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 2.5kg 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 4 degree angular resolution and 35mm 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 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 3001:

System Specifications

Operating Frequency:
Range Settings:
Range Resolution:
Sector scanned:
Angular Resolution:
Horizontal Beamwidth:

Vertical Beamwidth:

Update Rate (120° Sector):



Data Logging:

Transmit Pulse Length:
Transmit Power:
Telemetry Link:


USB Interface Unit

Dimensions:


Protocol:
Power Supply:

Input Data Format:

250kHz
5m to 200m in 10m steps
>35mm
120°
4°
Receive: 4°(+/-3dB points)
Transmit: 120°
Receive: 16°
Transmit: 12°
10m range, 30 frame/sec
20m range, 28 frame/sec
50m range, 14 frame/sec
100m range, 7 frame/sec
Auto at variable frame rate
Manual, key press on demand
30usec to 1ms
Variable
RS232 orRS485
(19200 baud half duplex)



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)

Diameter: 133mm
Height: 248m
3.5kg in air 2.5kg in water
8kg in air 5.6kg in water
Hard Anodised Aluminium
316 Stainless Steel (3000m option)
24V DC at 2.6A max
Operating: 0 to 40°C
Storage: -20 to +60°C
500m
Optional 3000m (316 Stainless Steel)
Burton 1508
Fibre Optic Video Multiplexer
Coax
Shielded Twisted Pair

Copyright © 2013. Marine Electronics Ltd.