SeaBeam 3012/3020

Deep Water to Full Ocean Depth Multibeam Systems

Wärtsilä ELAC Nautik

Kiel, DE

Description

High-performance multibeam systems, providing excellent real-time bathymetric data, bottom amplitudes, side scan data and beam data for water column imaging (WCI). Due to their depth performance, wide coverage and multi-ping operation, Wärtsilä ELAC SeaBeam 3012 and ELAC SeaBeam 3020 are the ideal hydrographic sensors for deep water to full ocean depth surveys.

Specifications

Physical properties of transducer head: Length [m]

0.39

Width [m]

0.28

Height [m]

0.08

Speed of sound: Real-time correction of refraction at transducer head

Y

Real-time integration of SV-profile

Y

Explanation of SV-profile application process

SSV and SVP are time stamped, merged and taken into account for ray bending processingSSV is taken into account for beamforming processingThe time stamped profile is stored as ACII-file

Maintenance criteria: Mean time before failure [hr]

6000

Mean time to repair [hr]

1

Interfaces: Compatible hardware

All external sensors to fulfill SP 44 special order requirements; LAN to external processing unit

Real-time access procedure

LAN based server; XSE data-format

Motion compensation: Motion sensors compatible to the system

All motion sensors with TSS1 protocol

Required pitch uncertainty [deg]

0.05

Required roll uncertainty [deg]

0.05

Required heave uncertainty [m]

0.05

Mounting and deployment: Mounting

Hull mounted

Retractable

N

Used Sonar Methods: Type of system

Multibeam

Bottom Detection Method

Amplitude and phase

System Parameters: Min. frequency [kHz]

180

Max. frequency [kHz]

180

Max. depth [m]

300

Depth resolution [mm]

10

Max. Slant Range [m]

500

Max. swath as a function of depth

9

Max. pings / second

126

Ping frequency [Hz]

21

Min. beam width across track [deg]

1.5

Min. beam width along track [deg]

1.5

Bottom Coverage: Footprint in nadir direction [m]

1.32

Footprint at max. horizontal range [m]

23.2

Smallest identifiable cube [m3]

1.3

Max. number of points per ping for side scan operation

2048