Page 56: of Marine Technology Magazine (April 2006)

56 MTR April 2006

FREE INFORMATION on products is available online at www.maritimeequipment.com/mt products 2 and 7kHz with a trans- ducer of 0.8m -0.75m. A very high layer reso- lution in the decimeter range is possi- ble due to the transmission of short pulses without the known ring- ing effect of linear sub-bottom profil- ers.

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Innovative Technology

Projects

The Acoustic Systems Trainer for

SONAR has been designed and man- ufactured for underwater studies.

The system is comprised of a con- trol Console, containing the CW and

Pulse gating electronics, and the hard- ware/software-processing (Sonar

Signal Analyzer - SSA) interface with the computer. The transparent

Acoustic Tank is constructed from acrylic material, measuring 1.2 m in length, 600 mm deep, and 600 mm wide, with a capacity for 400 liters of water.

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Kongsberg Maritime

Kongsberg Maritime will launch the

EM 302, a new version of the EM 300 multibeam echo sounder, a prod- uct for marine geology mapping of the seabed for depths to 5000 - 6000 m. The new product will include all earlier features, and will use chirp technology to obtain extended range capability. It will also offer high-den- sity signal processing and increased number of soundings for improved resolution. Also from Kongsberg

Maritime is the SBP 300 multibeam sediment profiler, designed for inte- gration with EM 302.

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E-sea Sound MP 35

MARIMATECH has manufactured

Hydrographic Survey Equipment for more than a decade. Its E-sea Sound

MP 35, used for shallow water sur- veys as well as full ocean dept, is able to perform sup-bottom penetration, multiple layer tracking and advanced heave, roll and pitch correction. Mud layer detection is yet another feature.

The E-sea Sound MP 35 has now been equipped with a flash drive memory.

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Sonavision Launches

RoxAnn GD

Sonavision launched the

RoxAnn GD-A

Seabed

Classification sys- tem, the successor to the RoxAnn

System. RoxAnn was developed more than 20 years ago as an aid to the commercial fisherman, as it automat- ically linked the seabed type informa- tion available from an echosounder with the position of the vessel. The

RoxAnn GD-A is a radical re-design and contains a number of improve- ments. The most noticeable differ- ence is the size of the system. At 200 x 110 x 60 mm and 600g, it is con- siderably smaller and lighter than the older version. RoxAnn GD-A is also small on power consumption and can be powered using the USB connec- tion from the computer. A 5VDC laptop style supply is also included.

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Sonar from GeoAcoustics

GeoAcoustics' new 24 bit digital side scan sonar provides full 24 bit data, digitized directly at the trans- ducers, thus providing surveyors with high quality resolution. With sonar frequencies based upon the combina- tion of 100kHz and 400kHz, this sonar is designed to provide a high level of image clarity. The system can also be mobilized as a modular sonar on ROVs and AUVs.

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New Resource for Marine GIS and Seabed Mapping

The new Davey Jones' Locker Treasure Chest of Links, accessible at either www.marinecoastalgis.net or www.seafloormapping.net provides scores of marine/coastal GIS and seafloor mapping links to assist researchers, educa- tors, and students in finding helpful information and data. The site is main- tained by the Davey Jones Locker research laboratory, Department of

Geosciences, Oregon State University.

Sonar Systems & Seafloor Mapping

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