Page 54: of Marine Technology Magazine (November 2006)

54 MTR November 2006

DIDSON-DH

DIDSON-DH is a Dual-

Frequency

Identification

Sonar with a handle on the back and an external battery that can be mounted on the sonar.

The DIDSON-DH is designed to allow divers to "see" in zero visibility environments. The sonar was devel- oped for NSWC-PC to conduct ship hull inspections. The Coast Guard had input on the initial design and requested that the DIDSON-DH be "convertible" meaning that it could also be operated remotely as a stan- dard DIDSON. The sonar connects to the mask-mounted display that has

SVGA color resolution. A diver can swim the sonar autonomously or have the sonar connected to the top- side via the cable assembly in order for topside personnel to view data simultaneously.

The diver controls are easy. The four control switches (momentary push switches activated with the thumb) are labeled F1, F2, F3, and

F4.

For more information e-mail [email protected]

Submersible Diesel

Generator

Sound Ocean Systems, Inc. (SOSI) completed the last of nine sub- mersible diesel generator modules to

Input-Output DigiCOURSE (I/O) in support of its new generation buoy based VSO 3-D seismic survey sys- tem. Having initially built a proto- type last year, SOSI developed a "Beta" pre-production unit earlier this year followed by the first eight production units just completed.

I/O has awarded SOSI a follow-on contract for the next production run of 10 additional generator units due to be delivered at the end of January.

SOSI's diesel generators are housed in water-tight enclosures that are attached to the underside of I/O's

VSO data buoys. The submersible generator units are supplied by SOSI complete with hull, ballast, batteries, fuel tank, diesel engine, alternator, cooling system, ventilation system, controller, and software. Because the module is completely underwater during operation, each unit is also supplied with snorkels for combus- tion air and ventilation.

For more information e-mail [email protected].

Centaur Range of

Bathymetric Systems

Sonavision launched the Centaur range of Bathymetric Systems.

Sonavision said that the annual cali- bration procedure can now be run by the customer without having to send the unit back to the manufacturer.

The Centaur is based on the UK94

Bathymetric system, and incorporates a digiquartz pressure sensor and a high resolution altimeter. It uses up- to-date electronics and features auto- sensing RS232 / RS485 electronics.

The altimeter, which is also available as a standalone product, called Echo, uses 16bit electronics, providing mil- limeter scale resolution.

For more information e-mail [email protected]

Super SeaArc 5500

Remote Ballast Option

DeepSea Power & Light introduced the latest version of its 150 Watt HID

Super SeaArc 5500. DeepSea has designed a remote ballast version of the Super SeaArc 5500 to accommo- date challenging mountings.

The Super SeaArc 5500's remote ballast option allows the ballast por- tion of the light to be mounted up to 15 ft. away from the lighthead.

This is key for applications that cannot accommodate the length of the integrated ballast version, but need the impressive light output it offers.

Two color temperature lamp options are available, 4000ºK or 7000ºK, both of which produce a very white light that penetrates sea- water further than conventional incandescent lamps. The 60 degree beam angle (90 degree also available) makes it a good choice for underwa- ter filming or photography, where tight beam control is required.

The Super SeaArc remote ballast version is available in Aluminum or

Titanium, for depths of 4,000 m or 6,000 m, respectively.

For more information e-mail [email protected] products

FREE INFORMATION on products is available online at www.maritimeequipment.com/mt

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