Page 56: of Marine Technology Magazine (September 2005)

nate switches, see-saw potentiome- ters, trigger switches and direction sensing and center detect switches.

The C90 can also be configured as either a spring return or friction clutch device. Special potentiometers such as ganged, contactless (Hall effect) and oil filled are also available.

Applications areas include marine controls, cranes, gantries, hoists, lifts, conveyors and container handling equipment.

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Ameron Fiberglass Pipe

Ameron manufactures glass rein- forced epoxy (GRE), vinylester and phenolic composite pipe and fittings globally and pro- vides services, such as pre-fabri- cation of spools, assembly and installation train- ing and field service anywhere in the world. Fiberglass piping is inherently corrosion resistant and lightweight. It also offers fire resist- ance and thermal insulating charac- teristics. Products are designed and available with special features of elec- trical conductivity, low flame spread, low smoke generation and low toxici- ty. Products are designed for use in normally wet service as well as for dry services, such as deluge piping, and are designed to resist exposure to fires as intense as jet fire (over 300 kW/m^2 heat flux).

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SONRAS: Sound

Registration and

Analyzing System

SONRAS is a Sound Registration and Analyzing System consisting of a submerged buoy and a Ship Borne control Station. The system is designed to records, presents and analyses acoustic noise in the frequen- cy domain from 10Hz to 100kHz.

The analysis is performed by Fast

Fourier transform, and presented with few seconds delay.

The Instrument buoy is ported in a cage with weights and floats, making it stable in the sea. A mast is support- ing the radio antenna and the GPS receiver. • Weight 40 kg Hydrophone suspend able to 30 m depth Battery capacity for 8 hours Recommended frequency span 10 Hz to 100kHz 56 MTR September 2005

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

Shark Marine Technologies

Shark Marine Technologies, a manu- facturer of underwater imaging equip- ment, ROV and underwater survey systems has released the Navigator, an underwater navigation and sonar unit designed for diver operation. The sonar and navigation data are dis- played on a five-in. LCD screen and controlled by the diver through

Windows based software. Weighing 2.5 lb. in the water, including the front mounted scanning sonar, the unit is designed to be portable. The will be used for, but not limited to, mine countermeasures, Navy ops, search and recovery, hull inspections, underwater archaeology, diver guidance and surveillance.

Options include GPS, Digital Camera, Acoustic Positioning System (APS), Magnetometer or cable tracker, Depth and compass to provide the diver with even more information and to keep a log of underwater activi- ty. The Navigator can also be attached to a Diver Propulsion Vehicle (DPV) for navigation and obstacle avoidance.

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