- Email: [email protected]
ITT fiber-optic communications monitors health of deep-sea divers
52
News and Notices 300-METER DIVER CAMERAS A N N O U N C E D BY BENTHOS, INC.
Two NEW 35ram diver cameras capable of operation at a depth of 300 m are announced by Benthos, Inc. The Model 370-2 unit records 800 pictures on a single loading of standard film, and is used for inspection and survey applications where a large number of photographs are required. A data chamber records the exact time when each photo is taken. The camera is motor driven from a self-contained, rechargable power supply, providing automatic film advance. External aperture and focus adjustments, as well as a digital frame counter, are available to the diver. The Model 370-2 cameras mounted in parallel (see photo) obtain stereo photos of superior resolution and detail, and provide excellent performance in low visibility conditions. The smaller Model 371-D diver camera is used for applications requiring only a few photographs. The camera will record up to 80 exposures using thin-base 35mm film. It also is motor driven with atttomatic film advance. The camera weighs only 2.3 kg (5 Ib) in water.
ITT FIBER-OPTIC C O M M U N I C A T I O N S MONITORS HEALTH OF DEEP-SEA DIVERS FIBER-OPTIC communication systems that assure the safety of deep-sea divers and aid them in pertbrming their tasks were announced last June by British and U.S. units of International Telephone and Telegraph Corporation. The systems provide a quantity of data and communication channels from the depths to the surface of the water with a simplicity that can not be obtained in any other way. The systems operate by transmitting data by lightwaves carried through hair-thin threads of glass. An ITT British unit, ITT Optical Equipment Division, said the growth of off-shore oil and other hydrospace prospecting has generated a requirement for sophisticated equipment to monitor the effect of deepwater environments on the divers. The equipment of the U.S. unit, ITT Cable-Hydrospace Division, in addition to monitoring the physical condition of the diver, provides the convenience of TV views of the diver to a distance of 2,000 ft from the receiving terminal. In the past, medical monitoring of divers was restricted to land-base simulated conditions in pressure chambers. Now there is an urgent requirement, as depths increase, to monitor a diver all the time he is operational, particularly since the diver himself may be unaware of any deterioration in his physical condition. To monitor a diver's health and to provide voice communication, 12-16 functions need to be scanned continuously. The bulk and weight of traditional electrical conductors for each channel would be unacceptable. Also, since divers are often using heavy electrical current cables for such purposes as welding, electromagnetic interference can be a problem when conventional copper wires carrying electrical signals are used. To enable a diver to work satisfactorily and without entanglement, a single fiber-optic cable is used to connect him with his support system. The British communication/health link enable 16 functions to be monitored, each of the input channels being intermixed and encoded to digital data for transmission through the single hair-thin fiber-optic data link to the surface control vessel. The data is then decoded and the 16 functions are displayed. The U.S. link provides TV views and measures the diver's depth, temperature and heart rate.
i!i! i
ii ]~!L i~i17111~! I~ ~i!~!~]~ ~~i~ / ~i~ !L~~i/ ~ ~ i~i~ii~~
i~!~!~~i~ i~~i ~ii! ~ i ~ ~i~i~i ~ i~~ ~i~zi~~i ~L~i~!i!~ii
i! i ~
ii ~
~ ~ ~ i/~ ~
Single fiber-optic cable and support system.
News and Notices
55
OVER rnE past several years NOAA's National Ocean Survey has been engaged in digitizing hydrographic data from more than 3200 hydrographic surveys as part of a project to automate the nautical chart production process. Soundings, bottom characteristics and danger-to-navigation data from all coastal waters of the United States including Alaska, Hawaii, Puerto Rico and the Great Lakes are included in the project. The Environmental Data Service (EDS) of N O A A has been designated as the agency to disseminate these data to the public. To describe and dearly define geographic coverage of available data, a series of catalogs is being produced. The first, covering the North Atlantic coastal area, is enclosed. These data will have strong appeal to state coastal zone management programs, environmental assessment programs, the commercial fishing industry, and the oil and gas industry, as well as groups engaged in a wide range of other marine oriented endeavors in research and industry. For further information contact: Christopher Lawrence, Lt. NOAA, Marine Geology and Geophysics.
A L U M I N I U M ALLOY HELICOPTER L A N D I N G PLATFORMS SINCE THE successful installation of the aluminium alloy helicopter landing platforms produced by Non Corrosive Metal Products Limited on three Trinity House Lighthouses, i.e. Wolf Rock, Longships and Bishops Rock, off the turbulent Cornish coast, N.C.M.P. have secured Contracts for much larger light alloy Helidecks for access to drilling platforms and service vessels for North Sea Oil. N.C.M.P. recently completed the design, manufacture and complete installation for a large North Sea Oil Company, of three corrosion resistant, lightweight aluminium alloy deck systems within a period of 24 working days. The Helidecks are constructed from patented extruded decking profiles, supported on fabricated space frame structures and are complete with personnel safety netting, landing lights, deck markers and supporting structure. These are suitable for a loading range up to the equivalent of Bolkow 105D Helicopters, and/or Dauphin SA365, Hughes 500, Bell 212, Sikorsky $61, etc. Aluminium alloy Helidecks are selected because of their light weight, i.e. one-third that of steel, inherent corrosion resistance and low first cost, plus ease of assembly. Moreover, the supporting structure is much lighter and less expensive. Indeed, N.C.M.P. light alloy decks can in many cases be installed on supply vessels and rigs that were not originally designed to take a Helicopter platform because of their light weight. N.C.M.P. have manufactured, or are currently installing, a total of 11 decks, with 2 more on order and a further 7 have been designed and are in the final stages of Contract negotiation, for loads up to 10,000 kilos. N.C.M.P. offer a complete package, design, construct and erect, either outright sale or lease. The patented method of construction permits very quick manufacturing times. The N.C.M.P. Group, who are situated in West Drayton close to London Airport, have been specialists in Access Facilities for many years, but have hitherto concentrated on Access Equipment for Civil Engineering and the Construction Industry, and also specialist crew embarkation facilities for very large sea-going Tankers and Tanker Terminals world-wide. They have currently on their books, orders totalling more than three million pounds for these aluminium structures.
News and Notices 300-METER DIVER CAMERAS A N N O U N C E D BY BENTHOS, INC.
Two NEW 35ram diver cameras capable of operation at a depth of 300 m are announced by Benthos, Inc. The Model 370-2 unit records 800 pictures on a single loading of standard film, and is used for inspection and survey applications where a large number of photographs are required. A data chamber records the exact time when each photo is taken. The camera is motor driven from a self-contained, rechargable power supply, providing automatic film advance. External aperture and focus adjustments, as well as a digital frame counter, are available to the diver. The Model 370-2 cameras mounted in parallel (see photo) obtain stereo photos of superior resolution and detail, and provide excellent performance in low visibility conditions. The smaller Model 371-D diver camera is used for applications requiring only a few photographs. The camera will record up to 80 exposures using thin-base 35mm film. It also is motor driven with atttomatic film advance. The camera weighs only 2.3 kg (5 Ib) in water.
ITT FIBER-OPTIC C O M M U N I C A T I O N S MONITORS HEALTH OF DEEP-SEA DIVERS FIBER-OPTIC communication systems that assure the safety of deep-sea divers and aid them in pertbrming their tasks were announced last June by British and U.S. units of International Telephone and Telegraph Corporation. The systems provide a quantity of data and communication channels from the depths to the surface of the water with a simplicity that can not be obtained in any other way. The systems operate by transmitting data by lightwaves carried through hair-thin threads of glass. An ITT British unit, ITT Optical Equipment Division, said the growth of off-shore oil and other hydrospace prospecting has generated a requirement for sophisticated equipment to monitor the effect of deepwater environments on the divers. The equipment of the U.S. unit, ITT Cable-Hydrospace Division, in addition to monitoring the physical condition of the diver, provides the convenience of TV views of the diver to a distance of 2,000 ft from the receiving terminal. In the past, medical monitoring of divers was restricted to land-base simulated conditions in pressure chambers. Now there is an urgent requirement, as depths increase, to monitor a diver all the time he is operational, particularly since the diver himself may be unaware of any deterioration in his physical condition. To monitor a diver's health and to provide voice communication, 12-16 functions need to be scanned continuously. The bulk and weight of traditional electrical conductors for each channel would be unacceptable. Also, since divers are often using heavy electrical current cables for such purposes as welding, electromagnetic interference can be a problem when conventional copper wires carrying electrical signals are used. To enable a diver to work satisfactorily and without entanglement, a single fiber-optic cable is used to connect him with his support system. The British communication/health link enable 16 functions to be monitored, each of the input channels being intermixed and encoded to digital data for transmission through the single hair-thin fiber-optic data link to the surface control vessel. The data is then decoded and the 16 functions are displayed. The U.S. link provides TV views and measures the diver's depth, temperature and heart rate.
i!i! i
ii ]~!L i~i17111~! I~ ~i!~!~]~ ~~i~ / ~i~ !L~~i/ ~ ~ i~i~ii~~
i~!~!~~i~ i~~i ~ii! ~ i ~ ~i~i~i ~ i~~ ~i~zi~~i ~L~i~!i!~ii
i! i ~
ii ~
~ ~ ~ i/~ ~
Single fiber-optic cable and support system.
News and Notices
55
OVER rnE past several years NOAA's National Ocean Survey has been engaged in digitizing hydrographic data from more than 3200 hydrographic surveys as part of a project to automate the nautical chart production process. Soundings, bottom characteristics and danger-to-navigation data from all coastal waters of the United States including Alaska, Hawaii, Puerto Rico and the Great Lakes are included in the project. The Environmental Data Service (EDS) of N O A A has been designated as the agency to disseminate these data to the public. To describe and dearly define geographic coverage of available data, a series of catalogs is being produced. The first, covering the North Atlantic coastal area, is enclosed. These data will have strong appeal to state coastal zone management programs, environmental assessment programs, the commercial fishing industry, and the oil and gas industry, as well as groups engaged in a wide range of other marine oriented endeavors in research and industry. For further information contact: Christopher Lawrence, Lt. NOAA, Marine Geology and Geophysics.
A L U M I N I U M ALLOY HELICOPTER L A N D I N G PLATFORMS SINCE THE successful installation of the aluminium alloy helicopter landing platforms produced by Non Corrosive Metal Products Limited on three Trinity House Lighthouses, i.e. Wolf Rock, Longships and Bishops Rock, off the turbulent Cornish coast, N.C.M.P. have secured Contracts for much larger light alloy Helidecks for access to drilling platforms and service vessels for North Sea Oil. N.C.M.P. recently completed the design, manufacture and complete installation for a large North Sea Oil Company, of three corrosion resistant, lightweight aluminium alloy deck systems within a period of 24 working days. The Helidecks are constructed from patented extruded decking profiles, supported on fabricated space frame structures and are complete with personnel safety netting, landing lights, deck markers and supporting structure. These are suitable for a loading range up to the equivalent of Bolkow 105D Helicopters, and/or Dauphin SA365, Hughes 500, Bell 212, Sikorsky $61, etc. Aluminium alloy Helidecks are selected because of their light weight, i.e. one-third that of steel, inherent corrosion resistance and low first cost, plus ease of assembly. Moreover, the supporting structure is much lighter and less expensive. Indeed, N.C.M.P. light alloy decks can in many cases be installed on supply vessels and rigs that were not originally designed to take a Helicopter platform because of their light weight. N.C.M.P. have manufactured, or are currently installing, a total of 11 decks, with 2 more on order and a further 7 have been designed and are in the final stages of Contract negotiation, for loads up to 10,000 kilos. N.C.M.P. offer a complete package, design, construct and erect, either outright sale or lease. The patented method of construction permits very quick manufacturing times. The N.C.M.P. Group, who are situated in West Drayton close to London Airport, have been specialists in Access Facilities for many years, but have hitherto concentrated on Access Equipment for Civil Engineering and the Construction Industry, and also specialist crew embarkation facilities for very large sea-going Tankers and Tanker Terminals world-wide. They have currently on their books, orders totalling more than three million pounds for these aluminium structures.