Underwater
submerged in water.
See Also: Water, Water Quality, Water Meters, H2O, Wastewater, Water Spray, Water Leak, Water Flow, Sea, Subsea, Autonomous Underwater Vehicle
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SoundLink Underwater Acoustic Modems
With the innovative technologies, LinkQuest's modems have achieved significantly increased data rate (up to 38,400 baud), lower power consumption and unprecedented robustness. All of LinkQuest's modems perform at a bit error rate of less than 10 which is equivalent to the quality of wire line communication. LinkQuest's extensive line of underwater acoustic modems outperform any competing products in technical aspects for both near-vertical, horizontal and extreme horizontal underwater environments.
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Stock cables
The MacArtney Group depends on the support of a number of major cable manufacturers to supply a range of cables that are designed, manufactured and tested to meet the highest demands of the underwater technology industry. The product range includes TV, signal, instrumentation, fibre optic, ROV, oceanographic geophysical, telecommunication, fishery and sonar cables.
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Mechanical Coating Thickness Gauge
211
This is one of the most popular mechanical coating thickness gauges in the world.Factory calibrated - with user calibration adjustmentFoils supplied to check calibration on siteIdeal for cold surfaces and underwater useSmall and portable with an accuracy ±5%The “V” grooved base, ideal for pipeline inspectionAvailable in either Metric or Imperial versions, the Elcometer 211 measures coatings up to 6mm (250mils)
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Sea
General Dynamics Global Imaging Technologies
Our maritime solutions are trusted above and below the open sea to address next-generation challenges. From secure communications to complex weapons systems, underwater vehicles to electronic warfare, our innovations equip the U.S. Navy, Coast Guard and maritime communities with a vast array of advantages to protect the freedom of the seas.
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AUV | ROV Sensors: AUV | ROV Sensors
Autonomous and remotely operated underwater vehicles are rapidly evolving to fill scientific niches, many with capabilities otherwise unattainable through traditional manned research at a fraction of the operating cost. Sea-Bird Scientific offers a line of sensors uniquely designed for integration with various unmanned underwater vehicles, expanding data potential and opening new doors for unique research opportunities. While Sea-Bird Scientific originally designed most sensors for stand-alone applications, we have redesigned and miniaturized popular product lines meet the specific operational requirements of unmanned research platforms: a 1 kg CTD can now replace a 10 kg CTD while maintaining the same accuracy, and a precision optical sensor can now take up half the space while recording the same data channels.
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PXIe-4480, 1.25 MS/s, 3.4 Hz AC/DC-Coupled, 6-Input PXI Sound and Vibration Module
784277-01
1.25 MS/s, 3.4 Hz AC/DC-Coupled, 6-Input PXI Sound and Vibration Module—The PXIe‑4480 is designed for high-bandwidth audio, acoustic, and vibration measurements. It provides six channels of dynamic signal acquisition, and you can use one of four gain settings to configure your input range. The PXIe‑4480 also includes software-configurable AC/DC coupling, charge measurement, voltage excitation, IEPE excitation, and TEDS support, making it ideal for measuring acoustic transducers, pressure sensors, and hydrophones. Common applications include audio test; noise, vibration, and harshness (NVH) analysis; and underwater acoustic measurements. For measuring sudden changes, such as high speed blast and pressure events, the PXIe-4480 can sample up to 20 MS/s per channel in time-domain mode.
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Miniature High Density (MHD) Metal Shell Connectors
A high density (up to 96 contacts) miniature waterproof electrical connector keeps weight to a minimum and fits into compact spaces. Well suited for underwater vehicles such as ROVs, AUVs, and UUVs, where space and weight are typical design constraints. Durable materials allow reliable connectivity with low risk of operational failure.
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PDS Slope Protection Software
A number of special features are implemented in Teledyne PDS for underwater slope protection purposes.Guidance features are used to position a work vessel and monitor the laying of slope protection material. 3D images and 3D views display all movements of the vessel, crane, and the slope protection system.
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Ultra-Wide Underwater HD Camera
Surveyor-HD-Pro
The Teledyne Bowtech Surveyor-HD-Pro ultra-wide underwater HD camera is designed to provide the widest angle of view, whilst remaining compact and very competitively priced. The camera is ideal for ROV inspection tasks, scientific observation and broadcast applications.Video output is available as HD or HD-SDI over fibre.
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Glass Reinforced Epoxy (GRE) Connectors
Waterproof, submersible electrical connectors rated up to 20,000 psi. Specifically designed for harsh environments, the GRE connectors from Teledyne Impulse are rugged and reliable connections for ROVs, AUVs, underwater instrumentation, and others areas of high pressure or extreme conditions.
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Harness Design and Manufacture
When designing an underwater cable harness, there are some factors which need to be considered, and we have produced the following list as a guide for customer information:Component considerations:- Electrical requirements- Mechanical considerations- Quality requirements- Reliability- Design redundancy (contact count)- Connector selection (type and form)- Locking requirements- Backpotting requirements- Waterblocking in moldings- Cable specification- Cable jacket material and compatibility with elastomers- Abrasion resistance- Stiffness profile at termination- Connector format (straight or right angle)- Molding format (straight or at an angle)- Clearance allowance for molding and cable routing- Elastomer compatibility (eg oil filled units)- Metalwork selection re: corrosion and cathodic delamination- Surface finish for metalwork as appropriateOperational considerations:- Operating depth profile (not just max. depth)- Tensile loads- Torsional loads- Bending loads- Bend control requirements (to limit bending at termination)- Deployment and recovery loads- Dynamic loading-Flow turbulence effects.
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Single-point Current Meter
The SEAGUARD® is the core module used in small and medium sized underwater observatories. Whether used as a multipurpose instrument, or as a hub for strings in the water column, the SeaGuard manages connected sensors and the real-time communication of data and meta-data to shore. In autonomous configurations, long battery life is achieved with aggressive power routines keeping the full system at the lowest power levels possible.
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Light Measurement
Redesigned light sensors optimized for ecological, meteorological, solar energy, plant research, and underwater measurements.
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Underwater Metal Detector
5000
Littlemore Scientific Engineering Co
Robust diver held detector capable of operation to 200 Meters (660ft).Supplied ready for use with rechargeable battery, clacker earphone, standard 25cm coil, mains charger and user manual.
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Mechanical Coating Thickness Gauges
Mechanical Coating Thickness Gauges are suitable for working in high risk areas such as high temperature or flammable atmospheres, underwater or where the risk of explosion is high and could be triggered by the use of an electronic instrument. From the simplest coating thickness gauge Elcometer 101 which will provide you with quick and immediate results to the more accurate coating thickness gauge Elcometer 211, also called the "banana gauge" which is ideal for cold and underwater surfaces.
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Acoustics
Chelsea Technologies specialises in the design of underwater transducer technology. With over 45 years’ experience, our comprehensive range of standard transducers are ideal for a wide range of applications from aquaculture to defence. Our in-house acoustics experts can also help with custom products and design projects.
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Underwater LED Lights, 120Vac, 4,200 or 7,300 Lumen Output
LED-R-Series
The Teledyne Bowtech LED-R-Series underwater LED lights are 120Vac and available with 4,200 or 7,300 lumen output. These lights feature our latest LED technology and are now a real alternative to AC incandescent lamps.Due to Teledyne Bowtech's continued history of innovation, these lights feature the latest and best underwater LED lighting technology available.
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Osprey Autonomous Underwater Vehicle (AUV)
Osprey AUV – Teledyne's latest member of its underwater vehicle family provides customers with a longer endurance, greater payload capacity, while still maintaining our history of true modularity.The Osprey AUV builds upon the Gavia the world's first truly open and modular AUV. The Osprey AUV has a 324 mm diameter in order to carry additional energy allowing for extended operational endurances in excess of 24 hours (configuration dependent) while maintaining the same 1000 meter depth rating of the proven Gavia design. Added features include an efficient rim drive thruster, external data pod, increased capacity battery modules, science bay, obstacle avoidance and forward looking sonar nose, and customizable payloads.
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Vacuum Leak Test Systems
Vacuum leak testing is the principal leak test method for testing parts that could have leakage from an external source into their housings and casings. Parts like underwater sensors or housings, outdoor electrical housings, sealed components, and components associated with vacuum sources are all prime candidates for vacuum leak testing. Operation of instruments that supply vacuum to test parts instead of pressure works in a similar, yet essentially opposite, manner as pressure decay testing.
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Underwater LED Floodlight, 20,000 Lumen
LED-V-Series
The Teledyne Bowtech LED-V-Series is a high powered underwater LED floodlight, with a 20,000 lumen output. The light features our latest LED technology.Rated to operate at 6,000 metres ocean depth, the lights are manufactured with anodised aluminium, offering proven corrosion resistance.The 80° wide beam angle light produced, is ideal for illuminating large areas for HD viewing tasks.
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Pocket-size pressure logger
DEFI2-DHG & DEFI2-D
DEFI2-DHG and DEFI2-D are miniature pressure recorders (depth meters) for long-term observations (DEFI-D and DEFI-DHG are up to 573 days and 52 days respectively and for 1 minute interval observation). These two recorders can be used attached to fishing nets, underwater instruments and moorings. Also, AAA alkaline batteries used by DEFI-DHG and DEFI-D are easily available, reducing the operating costs.
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Forward Looking Imaging Sonar
SeaBat 7123-MkII
The new SeaBat 7123-MkII is an advanced dual-use high resolution sonar suitable for both commercial and military applications.Commercial uses include super high resolution imaging for underwater inspection related tasks, long range detection of object in the water column and the sonar can be used as a platform for scientific and oceanographic research applications.
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Hydrophones
Piezo is a critical element in producing a hydrophone for military and commercial underwater listening applications. Hydrophones utilize piezoelectric elements to detect sound pressure waves produced by underwater vessels, animals, and the environment. Hydrophones must have a flat frequency response that is proportional to the magnitude of the sound pressure wave. CTS piezo elements provide this critical function in hydrophones by providing excellent frequency response and high coupling factors necessary in hydrophone applications. CTS materials provide excellent electrical properties for hydrophone applications while allowing the ability to form the piezo element to the desired mechanical structure for the hydrophone.
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Altimeter
VA500
The VA500 Altimeter delivers a new solution for the ROV, AUV and Hydrographic community to the problem of underwater positioning.
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Modular Connectorized Distribution Unit
MCDU
The Modular Connectorized Distribution Unit (MCDU) is a modular family of factory-qualified subsea distribution units that provide oil-filled, pressure-balanced junctions for flexible underwater configurations.A new configuration has recently been introduced with a lighter, more cost-effective frame, highly visible ROV lifting handles, and wide openings to facilitate installation and removal of the housing. The compact frame design negates the need for lifting wires, making it easy for ROVs to install and retrieve the unit from the sea floor.
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Hydrophone
RESON TC 4040
The TC4040 is an ideal standard reference hydrophone for calibration of transducers, hydrophones and underwater acoustic measurement systems.The TC4040 offers flat frequency receiving response over a wide frequency range and the relatively high transmitting sensitivity makes it very useful within many areas of underwater acoustic research, tests and measurements.
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VPX Processing System
CRS-D4I-3VB1
4-slot, SWaP-reduced, rugged VPX Intel base plate cooled data processing system that can be applied across various applications including civilian and military unmanned vehicles, manned commercial and military aircraft, helicopters, over- and underwater research vessels, ground vehicles, and locomotives.
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Underwater camera with wiper
SFIDA
SFIDA is made for biological research usage and it is able to be installed in many different ways.
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Doppler Velocity Logs
NavQuest is a line of Doppler Velocity Logs manufactured by LinkQuest Inc., a company renown for its innovation, capability and product quality. The NavQuest Doppler Velocity Logs are ideal for precision navigation and positioning of underwater vehicles. With their capability for fast and accurate velocity output, significantly longer range and smaller minimum altitude when compared against similar products, the NavQuest Doppler Velocity Logs are the excellent choices for underwater precision navigation applications.
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Camera Option for Nosecone Module
The Point Grey Grasshopper digital camera provides high resolution, high sensitivity sensors, yielding optimal imaging for underwater photography. Housed in the nosecone, the camera takes photos at a rate of up to 3.5 frames per second. Images are stored on a compact flash card and can be viewed through the Gavia Control Centre.
