Why Do You Need Custom-Designed Research Equipment?

Custom-designed Scientific Research Equipment is needed every time a group of scientists wants to go to sea.  There are standard pieces that every team needs to use, and these researchers know what they need when planning for their trip out to sea.  Selecting equipment should be much simpler than choosing from a catalog. Mass-produced items are often not appropriate for a scientific survey, but having something built for the survey could make a very big difference.  Learn how to purchase custom gear before untying the boat for a look at the deep sea.

The Survey Equipment

CTD & sonar winch products are needed on every boat.  Those new to the marine research world might not know that CTD stands for conductivity, temperature, and depth.  These are very special arrays that are used to test everything from the salinity of the water to the depth of the probe.  Water temperature affects the whole of the research survey, and these instruments are lowered in a special grid that holds them all together.  

These units are made in much the same way a chandelier would be made.  Each piece of testing equipment is attached in its own spot, and these instruments do not interfere with each other during the survey.  This gear must be lowered into the water, and a winch may be built just for this purpose.

Sonar Winches

A sonar winch is designed to drop down a sonar beacon, to hold the units that were built for the survey, or to pull back an ROV.  A remote operated underwater vehicle is often used to dive to extreme depths so that drivers are not put at risk. These are much cheaper to operate because they do not put human lives at risk, and they can carry heavy-duty lights that give a much better look at what is happening when there is almost no light deep below the surface.  

The sonar winch that is built for a survey is designed to hold a certain weight, will not rust and has a weight rating that is easy to understand.  The crew on the boat can easily pull back anything that is attached to the winch cable, and the unit runs quieter than older devices.

Ordering An Array Of Equipment

Scientists often need to order an array of gear that will be used for their next survey.  The winch and CTD array can be made by the same company, and the lab may order an ROV that will drive deep below the surface.  These devices are designed with durable parts, and they have massive ROV lights attached that have the proper lumen rating. A large equipment order is much easier to place when the team knows precisely what they need.  

Any a team that would like to order new equipment may place an order before they arrive at the shore, and that equipment can be delivered directly to their vessel.  The CTD & Sonar Winches gear are designed to stand the test of time as it is dunked under the water over and over. Stainless steel parts and other advanced products are used to create equipment that these crews may use over and over for many years to come.  

When new gear is created for the survey it is tested for weight, tested to ensure the wiring is secure, and power sources are checked for durability.  The array has a depth rating, and that depth rating will ensure the scientists are getting accurate readings. When scientists need something that will go deeper, they need to order another array that is made just for that purpose.  Also, the proper lights are attached so that underwater cameras can pick up images at extreme depths.

SEACATALOG.COM OFFERS GLENAIR PRODUCTS TO MEET INDUSTRY DEMAND

Houston, TX, USA. May 1, 2019 – SeaCatalog.com (Houma, LA), an online catalog focused on providing its customers with a centralized marketplace for everything subsea, has announced that it will be offering a comprehensive line of Glenair (Glendale, CA) subsea cables and connectors in an effort to meet increased subsea marketplace demand.

SeaCatalog.com offers over 10,000 ROV and subsea spare parts on its website, where customers can gather information, request pricing, and place orders. SeaCatalog.com has proven a viable procurement tool for buyers and operational personnel looking to single source arrays of components from multiple vendors. The addition of Glenair’s product line will further enhance the catalog’s offering, and SeaCatalog.com will begin stocking critical, long-lead cables and connectors at its Houston, TX facility in an effort to greatly reduce lead times to better support its customers.

Benton LeBlanc, Managing Director of SeaCatalog.com said “This collaboration is a very exciting step in the evolution of our e-commerce service. The addition of the Glenair product line combined with our investment in stocking critical, long-lead items will significantly reduce lead times and allow our customers to meet their deadlines as assets that have sat idle return to work.”

Glenair showcased its full product line at OTC 2019 and is known for their ISO 9001 process quality, full spectrum product lines and having the industry's largest standing inventory of commercial and Mil-Spec electrical connector accessories.

About SeaCatalog.com

SeaCatalog.com is a centralized marketplace where ocean and marine professionals from around the world buy and receive quotes on new and pre-owned equipment for their oceanographic projects. The extensive product line provides thousands of supplies, parts and equipment, including over 10,000 ROV and Subsea spare parts in addition to thousands of marine products. Sea Catalog is the largest single source marketplace for the industry, and their extensive product line continues to grow, giving marine professionals access to supplies, parts and equipment for offshore and scientific projects.

About Glenair

Glenair, Inc. began operations in 1956 as the first company specifically founded to produce electrical connector accessories. Glenair now offers a dozen, full-spectrum product lines designed to meet every interconnect requirement, including a broad range of military qualified and commercial connectors, including the MIL-DTL-38999 Series III and our ultralight Series 80 Mighty Mouse.

Located in Glendale, California, our connectors, back shells and interconnect cable assemblies are all made either in America or in our facilities in Mansfield, England or Bologna, Italy. With so many interconnect manufacturers moving their production operations to Estonia, Mexico, India, China and elsewhere, Glenair is proud to continue our long-standing tradition of making our products in quality-controlled plants here in the USA, or in the case of selected connector products, in Western Europe.

For more information, contact: Benton LeBlanc Okeanus Science & Technology, LLC Bleblanc@okeanus.com +1 (985) 346-4666

To Read More:https://www.okeanus.com/news/seacatalog-com-offers-glenair-products-to-meet-industry-demand

Benefits Of Using Acoustic Doppler Current Profiler

Acoustic Doppler Current Profiler, or Acoustic Doppler Profiler, is often referred to as the ADCP acronym. Scientists use instruments to measure how fast water moves across the entire water column. ADCP installed on the seabed can measure current speed not only at the bottom but also at the same interval to the surface. These instruments can also be installed horizontally on the sea wall or buffer bridges in rivers and canals to measure the current profile from coast to coast, and to the bottom of the ship to make constant current measurements when the ship moves. In very deep areas, they can be lowered on cables from the surface.

How does it work?

ADCP measures water flow with sound, using the principle of sound waves called the Doppler Effect. Sound waves have a higher frequency, or tone when moving to you than when moving away. You hear the Doppler effect in action when the car accelerates with the characteristic sound that fades when the car passes.

Use

ADCP(Acoustic Doppler Current Profiler) is used to monitor natural phenomena and also for commercial purposes. This is being widely used in oceanography to measure the velocity of water flow in estuaries, rivers, canals, and large streams. This is very useful in finding undersea oceanic tornadoes that have a history of many major disasters. But the most important assistance he provides is for weather forecasting. By studying changes in speed and movement of water currents in the ocean, changes in weather conditions can be easily predicted.

ADCP also has various commercial uses. This is used to find deep ocean currents that can damage the drilling process, in measuring the flow of fluids through subsea pipelines and also to monitor the flow of fresh water that melts from the iceberg. They are also widely used in ports and ports to predict "ups and downs" to regulate ship traffic.

ADCP is a sonar system that measures the speed of water flow. The Doppler Effect allows sensors to measure the speed over a range of depths, making it ideal for oceanographic applications for measuring currents. Marine Measurements Acoustic Doppler Current Profiler (ADCP) provides the industry with precision profilers and wave measurement products for estuary, coastal and offshore applications.

It measures, records, and monitors the current velocity to produce a wave profile. It can be configured in several ways according to needs. Side listening is done in rivers and canals to monitor the speed of different layers. Listening to the bottom is done by installing ADCP on a boat or floating structure to measure the various underlying water flows. For long-term studies or research purposes, this method is generally used.

On the market, there are discounted prices available for a variety of Marine And Offshore Rental Equipment.

With various sound speeds, temperatures, conductivity and pressure sensors available. Mechanical packaging can be adjusted to meet the right OEM requirements. Marine and offshore rental equipment is equipped with calibrated panels and sensor sets without mechanical wrapping, and therefore allows direct incorporation into instruments or other fields.

Source:https://trackingauvultrashortbaseline.wordpress.com/2019/04/22/benefits-of-using-acoustic-doppler-current-profiler/

Importance Of Oceanographic Equipment And Launch & Recovery System

Understanding the physical properties of seawater, including temperature and salinity, and depth is necessary parameters for studying ocean processes. Fortunately, oceanographers have an oceanographic instrument that does exactly that, it's called CTD. CTD is an acronym for a sensor that measures conductivity (which can be used to determine salinity), temperature and depth. The instrument can be integrated with various observation platforms including gliders, vertical profile floats, fixed observation buoys, moored gondolas, and vertical profile rosettes.

Hydrographic equipment, such as instruments for measuring the conductivity, temperature and pressure of seawater at different depths, also known as CDT devices, require careful handling.

This type of CTD And Oceanographic Winches can be used normally for Fisheries and Oceans because it is driven by a hydraulic motor so that its the configuration is more compact than that of an electric drive winch of the same capacity. And the hydraulic unit is normally centrally designed, which means you share it with other bridge machines, such as a windlass, a capstan or even a crane.

Companies also, provide bespoke systems tailored to the specific needs of customers. All delivered systems have the technical support of a team of engineers with full access to a comprehensive database of technical and construction information, electronically stored and maintained since the company's inception. Technical support services include on-site commissioning, maintenance, and repairs performed by experienced and qualified maintenance engineers. This is complemented by a comprehensive program of spare parts and a large stock of major and minor components. All CTD And Oceanographic Winches are supplied with the ROV umbilical termination plug and the hydraulic unit for operating the system can also be provided if needed.

Payload processing in high seas is a difficult and potentially dangerous operation. Specialized knowledge of the design, manufacture, and operation of launch and recovery systems is essential for the purchase of a new launch and recovery system (LARS). A launch and recovery system (LARS) is normally used to place a remotely operated vehicle (ROV) at sea in the water and install it safely on the seabed. After its exploitation on the seabed, the ROV is recovered by the Launch And Recovery System; put it on board again safely.

The LARS controls are simple hydraulic levers and the winch is electric. The canola-based hydraulic fluid was used to minimize contamination or environmental impact in the event of a leak. The available options are a banana pulley system, a hydraulic damping system on the pulley and a dynamic heave compensation system. The dynamic heave compensation system should allow us to operate beyond most ships commonly used in the offshore market and by sea states of 5 or 6.

LARS is designed to support the largest ROVs of the working class at depths greater than 4,000 meters, deployed laterally or through the lunar pool. Our systems are designed, built and certified with special attention to the gentle handling of umbilical and third-party equipment. Given the loss of time and cost that you suffer from damaged cable, it is important for us to provide systems that help our customers extend the lifespan of the umbilical and minimize downtime. The remotely controlled pallet skate system allows safe handling of ROV equipment on the deck.

Why Need Marine And Offshore Rental Equipment?

Okeanus designs and produces a variety of conventional and specific system mooring launch techniques and wire managing techniques for implementation and restoration of critical receptors and equipment in the offshore environment. Our marine and offshore rental equipment fill up many needs from convenient light-duty small boat functions to heavy-duty deepwater underwater applications.

We provide many conventional winch designs for the seaside, mid-water hydrographic, and deepwater oceanographic applications. Our experienced application technicians can assist in modifying our standard models or developing a customized winch for your specific application.

Having designed and produced state-of-the-art winches for over 40 years, Okeanus conventional and customized winches have gained a reputation for long and useful lives. Using a traditional design process, extensive quality recommendations, and proven production techniques allow us to provide the most efficient, effective, and easy to maintain techniques that give long-term value to our clients.

Our oceanographic winch is completely suited for the ultra-deepwater absolute depths experienced in the oceanographic analysis.

Okeanus has provided oceanographic winches and A-Frame techniques to Cars Large Sectors (HHI) for the Geological Study of India’s oceanographic analysis boat, Samudra Ratnakar.

The state-of-the-art boat can survey the complete sea detail (10,000m) using innovative discovery abilities. Okeanus has provided unique grip winches which can handle high stress as well as plenty. The ‘SMART’ management systems enable fully active heavy settlement, and varying regularity pushes. Okeanus has also provided a Conductivity, Temperature, and Depth (CTD) Rosette Handling Application.

The Ultra Short Baseline and Acoustic Doppler Current Profiler are designed to be used by a single owner, enabling them to manage the implementation and restoration of the CTD system without including another team. The CTD Handling Application has inbuilt movement settlement to counterbalance the move and message of the delivery, considerably reducing the swaying of the CTD system. This enables an easier and more secure implementation and restoration function.

As well as offering a large variety of marine and offshore rental equipment, we also sell both new and used and can produce unique products exclusively designed for any raising, taking and motoring needs of our clients. We also provide an associated with support service providing complete equipment set up and examining, as well as servicing and repair. Okeanus provides a variety of used offshore equipment and the opportunity to “liquidate your assets” with rental options.

We are dedicated to purchasing subsea technology, this eventually means that our extensive variety of equipment is able to work in the most challenging conditions and provides some of the most innovative technological solutions in the industry. Our profile of equipment is available to hire reliant on current project commitments.

Source:https://sites.google.com/view/oceanographicequipment/why-need-marine-and-offshore-rental-equipment?authuser=9

Okeanus:The Launch And Recovery System, On Special Request For Delivering The Highest Of A Specification

Nowadays in many fields scientist have keenly working on many productive projects which are for the betterment of humanity. Just to give them the premium quality equipment to collect the data for their study is the only aim of some of the manufacturers. One of the manufacturers is Okeanus who has worked persistently with their engineering team to invent new scientific research equipment which will help a lot in Research and development sector.

One such innovative system is Launch and recovery system commonly known as LARS. This launching and recovering system are used for ROV’s. The remotely operating vehicle plays an important role in the subsea operation. To easily use the ROV’s at a depth of exceeding 4000 meters and deploying them over the side or through the moon pool the invention of Launch and recovery system has happened.

Looking at the requirements Okeanus Science & Technology has specially designed Launch and recovery system for subsea dependability and safety purpose in odd conditions deep down the sea. They have launched two Launch and recovery system namely Rapid mobilization Launch and recovery system and Eco sheave.

• Rapid Mobilization Launch and Recovery System

The fully integrated design is constructed and designed to give ease to the customers and launch and recover a free-flying ROV.

A Rapid mobilization Launch and recovery system consist of following things,

1. A winch or a level wind assembly which are efficient from collecting data from vessels of any size operating in waters with depth up to 10,000m.
2. A self-erecting A-frame. No crane is required for erecting the frame this helps to reduce mobilization time and money.
3. A docking head or an over-boarding sheave assembly and
4. An electro-hydraulic power unit.

This all is mounted on a single skid. This innovative design allows the entire system to be placed into an ISO flat rack to bring some ease in transportation and deployment.

• Eco sheave

It’s an economical launch and recovery system designed for those who are in short of their financial budget. The Eco sheave is a high-quality over boarding sheave designed specifically according to the small diameter electro-mechanical cables, wire rope or synthetic lines. It is familiar to be used along with small to medium sized oceanographic, hydrographic or geophysical instrumentation. Such as CTD’s, Water samplers, plankton nets, and bottom grab samplers. The entire launch and recovery system is constructed with stainless steel and has a Delrin sheave with margin grave bearings over it, including a sealed roller bearing option on it. To accommodate common instrumentation cables the Launch and recovery system is available with multiple grooves option and diameters on it.

Source:https://trackingauvultrashortbaseline.wordpress.com/2018/12/18/the-launch-and-recovery-systemon-special-request-for-delivering-the-highest-of-a-specification/ 

Why rental?

Stuck in between a deepwater installation or in between an exploration? Not to worry there is a number of companies who provide quality offshore rental equipment services. These companies provide the latest oceanographic technologies and marine scientific research equipment in Worldwide on a rental basis.

They have a broad range of offshore rental equipment in stock which is capable to provide assistance in deepwater installations. Let it be any project, these offshore rental equipment will take you through. They have designed their offshore rental equipment to face the rigors of a rough sea.

Reels, launch and recovery systems, assorted buoyancy, high-pressure pumping system, hydraulic power units and many more are listed in the offshore rental equipment catalogs. These offshore rental equipment are designed in keeping mind all the standard features. They are constructed under strict observation and guidelines of scientist and found very useful in surveying the ocean, hence they are well known as scientific research equipment. Scientist uses these instruments to collect data for the deep knowledge of the seabed and always have the alertness of the alarming situation.

In order to successfully produced oil, these offshore rental equipmentplays a major role. Some companies design specifically for complex deepwater and ultra-deepwater oil production, distribution, system support services, and products useful in between the platforms and the wellhead.

These rental services come with expertise that is well trained and experienced professionals in assembling, running, and operating the equipment throughout the project. The leading companies who offer the best offshore rental equipment arewww.hydrauvision.com, www.aquaterraenergy.com, www.wrightswell.com, www.atlascopco.com and many more.

Opt for rental services:

1. Exceptional service at your doorstep.
2. One can customize the ideal need of the equipment.
3. To keep running your projects smoothly a routine maintenance is provided from an experienced technician.
4. One can access the services 24*7.
5. Onsite training is provided by the professionals to keep extending your projects and maximize your productivity time to time.
6. No hidden fees are included in the agreement all the standard maintenance is included in the rental contract.
7. With this service, you get a personal assistant of a technician who is available till the end of the project.
8. One gets an ISO certified equipment that is properly maintained and is in excellent working condition.
9. Engineers of the companies design the most suitable temporary installation equipment.
10. Quality of the service, environmental care, and personal safety are guaranteed by the company and are included in the policy.

Source:https://trackingauvultrashortbaseline.wordpress.com/2018/11/19/why-rental/

Launch And Recovery System For Subsea And Marine Projects

Okeanus is a world leader in the production of ROV Launch & Recovery Systems (LARS) having provided over 50 systems significant ROV providers globally.

The organization also provides unique systems which are designed to suit customers specific requirements. All systems provided are officially reinforced by a team of technicians with full access to a complete data source of both technological and development information that is managed digitally since the organization was established. Technical support services include on-site commissioning, maintenance and maintenance carried out by experienced and certified service technicians. This is accompanied by an extensive spare parts program and a large stock of both minimal and significant elements. All Underwater Tracking Systems offer the ROV umbilical termination socket and the gas power unit to operate the system can also be provided if needed. All designs are produced using Autodesk Founder and information can be provided to customers for incorporation in outdoor patio templates.

As well as providing the necessary devices such as winches, A-frames and power packs, we, in addition, provide the needed training to launch and recovery system (LARS) providers, using our skills in both diver-led and driverless recovery systems.

Our diving and ROV division owns a number of fully mobile LARS located in 20ft transportation bins. Plusieurs LARS can carry an onboard breathing air provide so as to present an immediate secure home for further waterworks or for whenever a free ascent is not possible.

The individual proportionate management valves where appropriate are set with inner motor spools which give excellent management during the function of the winches.

The gas tubes are set with succeed secure fill having to make up for valves, to secure against gas pressure failing during function. The rotate points on the “A” Structure set up are set with Stainless-steel Metal oil erect nipples for oiling reasons.

An electrical top limit switch is installed adjacent to the centrally fixed sheave which will trip the HPU in the event the jump container is brought up above its normal operating parameter. This additional protection feature defends the container residents and devices.

At Hydraproducts we have integrated further protection measures on our HPU's with redundancy systems, this will ensure the protection of divers and useful devices if the gas device should ever don't succeed.

Hydraproducts has a wealth of experience in provide and production of unique Subsea Underwater Hydraulic devices. We are experts in unique tasks with concentrate on quality and distribution.

For those seeking to update HPU devices in order to gain cross-compatibility with different systems, or to improve the performance of the system with current devices, Hydraproducts can provide the necessary expertise to all corners of the world.

Source: http://bit.ly/2PnLTWW

Tracking AUV: Ultra Short Baseline

The efficient monitoring region of super short baseline (USBL) systems strongly pertains to the safety of autonomous underwater vehicles (AUVs). This problem has not been analyzed previously. A technique for determining the efficient monitoring place using acoustic theory is suggested. Ray acoustic equations are used to draw rays, which determine the efficient place. The sonar equation is established to find out the available variety of the USBL system and the background noise level using sonar features. The available variety describes a hemisphere-like housing. The overlap of the efficient place with the hemisphere is the efficient position for USBL systems monitoring AUVs. Lake and sea trials show the suggested method's credibility.

A short baseline (SBL) acoustic positioning system is one of three wide sessions of marine acoustic positioning systems that are used to track marine automobiles and divers. The other two is Ultra Short Baseline (USBL) and long baseline systems (LBL). Like USBL systems, SBL systems do not require any seafloor installed transponders or equipment and are thus appropriate for monitoring marine objectives from boats or delivers that are either attached or underway. However, compared with USBL systems, which offer a fixed perfection, SBL positioning perfection improves with transducer place. Thus, where place permits, such as when working from larger veins or a docking station, the SBL system can achieve a perfection and position sturdiness that is similar to that of seafloor installed LBL systems, making the system appropriate for high-accuracy survey work. When working from a smaller boat where transducer place is limited (i.e. when the baseline is short), the SBL system will display reduced perfection.

Modern ROV Lights & Cameras have the capability of carrying 10 TV cameras and working 5 or more at the same time. With the appearance of components such as Central Technologies' fibers optic movie and information multiplexer, up to 8 uncompressed video systems and 15 bi-directional information systems may be transmitted on one single-mode visual fibers. ROV umbilicals may carry up to 12 fibers, of which several are specific as spare parts in case of damage.

Closed circuit television/video systems, unlike with film type photography equipment, provide real-time reviews and certification to the operator—an absolute necessity for direct operator control of the system. Although pictures obtained do not have the very great quality available with printed photography pictures, the owner has the warm feeling that he does have good certification of the object being examined without the concern of returning to the site because of an issue with the photography camera. And, the new frame gets technology can give the operator a hard copy of the video image, at the same time at a lower quality than other systems.

Source: http://bit.ly/2z2laVN

Ultra Short Baseline & Rov Lights & Cameras: Necessary For Marine Research

The UltraShort Baseline (USBL) acoustic positioning technique, also called as Super Short Baseline (SSBL), includes calculating the product variety and keeping from a boat centered transceiver one, subsea transponder.

The seabed transponder which may be installed on a mobile focus on such as an ROV or on a limited focus on such as a seismic wire ground station is originally placed using data from the ship’s GPS. The USBL program then provides a range and bearing estimate of the transponder comparative to the ship’s position.

The range is measured by calculating the time taken from delivering a transponder interrogation indication to receiving its response. Bearing comes from by evaluating the small differences in the time of arrival of the response indication at each recipient factor within the transceiver.

Accurate and effective localization for low-cost AUVs would lower the hurdle toward multi-AUV research in stream and sea surroundings. However, these AUVs present size, energy, and price restrictions that prevent the use of traditional AUV receptors and acoustic positioning systems, including great difficulty to the problem of marine localization. The system uses a single acoustic transmitter placed at a blueprint and is acoustically inactive on the AUV, reducing price and energy use, and allowing multi-AUV localization. The AUV has an ultra-short baseline (USBL) recipient range that uses one-way travel-time (OWTT) and phased-array ray developing to determine variety, azimuth, and tendency to the transmitter, offering an immediate determination of the vehicle location. This estimate is fed to a particle filter and graph-based removing algorithm to generate a consistent AUV trajectory.

One of the main programs for Ultra Short Baseline is as a job referrals feedback for veins set with an energetic positioning (DP) program. By applying a transponder on the seabed and using the USBL system to find out its comparative place, a ship’s DP computer can use the records to seize the boat in the same place, on the same going whatever the difficult causes from wind, current and wave activity.

Operationally, the USBL technique very efficient as acoustic positioning can start as soon as a transponder has been deployed in the water.

It is a fearless, new, technical globe. This year will indicate operate moving of the torch: sales of electronic cameras will surpass those movie electronic cameras for the new in 2004, and you can bet there will be no going back. To indicate the finality of this change of focus, Eastman Kodak recently declared it will stop selling traditional movie electronic cameras in the United States, Canada, and Western Europe. The digital revolution has been going on in the marine globe for a long period, and subsea picture equipment manufacturers, are changing themselves in an effort to keep speed. Here is a roundup of the latest still and ROVLights & Cameras, and components to help commercial divers and underwater vehicles ply their trade. This independent underwater camera is capable of examining pipelines of almost any length with benefits of lots of money. Most are available in ultra-bright LED editions to support several needs.

Underwater Inspection Using Rov Lights And Cameras

The oceans are lovely places for us to see the water, but there are so various types of aquatic life in them that we often don't think about. Some of them are very little and others are extremely large. Thanks to various types of ocean technology we have to understand more about them.

Local authorities, insurance providers or anyone that has had to hire in teams of professional divers to Inspecting marine components, oceans protection barriers and water tanks, know only too well it can be a very costly business indeed. These modern days of health and safety awareness bring many issues associated with working underwater in poor conditions and with it the extra costs involved.

Breathing compressed air in water has time limiting restrictions for divers and depending on the depths the diver has to work, the danger of air bubbles becoming trapped in their bloodstream increase. Professional divers, therefore, have to stick strictly to following Underwater Tracking Systems that limit the amount of time that they can spend working underwater.

It is now possible to bring out marine inspection while at the same time removing the time constraints that divers have when operating marine buy using a small remote control vehicle fitted with video, powerful lights and a camera on board. ROV lights and cameras can provide clear color pictures in real-time to the pilot on the surface and make inspection and marine surveys safer and more economical. For marine inspections, the Videoray can be equipped with a high-resolution digital camera, wide-angle lens, and sonar. Since Videoray weighs only eight pounds and is highly maneuverable it can easily fit into smaller areas than a scuba diver could, such as pipes, drains hulls and in between components.

The acoustic signal processing system is the key to the underwater target tracking system. The solution of the components system and the FPGA interface logic design, and the time-delay evaluation algorithm and its DSP application execution are also introduced. The hardware platform provides top rated in digital signal processing g and the software design task becomes easier through the proper FPGA interface logic design. The experiment shows that the program could accomplish the time-delay evaluation of two marine objectives in high-precision and could meet the requirements of underwater target tracking.

The pictures are clear and in color and will show damage, corrosion, defects and marine structural issues up-close. In order to manage upcoming damage and to confirm that regular inspections have taken place, video footage of the inspection can be kept on record for an upcoming inspection. If there is extensive damage to a marine structure, identification is usually quicker and if necessary divers can be called in to bring out maintenance in a shorter time of time. Future inspections can be conducted to confirm that the necessary maintenance has been made to fulfill all current protection standards. This is particularly essential when it comes to public venues or components used by people on a daily basis.

Source: https://bit.ly/2xA14SR

Marine Scientists: Look For These Devices

The Basic LARS for work-class ROVs is based on the high-end program. It uses the same quality steel components and features such as docking head versatility, double angled A-frame and gentle handling of umbilical are maintained.

Launch and recovery system for ROV (LARS)

Remotely managed vehicles play a key role in subsea functions, and the comprehensive profile concentrates on active heave compensated techniques. The LARS is intended to handle the biggest perform category ROVs to absolute depths going above 4000 meters, implemented over the side or through the moon pool.

Our techniques are developed, designed and qualified with great focus on the smooth handling of umbilical and third-party devices. With the price and time loss you experience with a broken cable, it is important to us to provide techniques which help our customers to increase umbilical lifetime and reduce minimise operation downtime. Secure managing of ROV devices on deck is assured by the remote-controlled pallet skid system that enables the full deck area to be used.

LARS is installed on the stern of a ship. For launch, the launch and recovery system has a built-in A-frame, which tilts the support up and over, while making the vehicle hanging by its nose well away from the fantail. The support props up vehicle during A-frame spinning, backing the vehicle until it is a secure distance from the stern. The docking head provides damping to reduce movement in heavy seas.

The vehicle is then lowered into the water; end first, while the ship is making approximately 1–2 troubles forward way (this allows the vehicle to stay well away from the delivers screws). All techniques are given one final check out before launch. When ready, the vehicle is instructed to discharge its tow-line and begin its objective.

Acoustic communications and positioning are vital aspects of unmanned marine vehicle functions. The use of individual models on each vehicle has become an issue in terms of frequency bandwidth, space, power, and cost. Most vehicles rely on acoustic modems transmitting frequency-hopped multiple frequency-shift keyed sequences for command-and-control functions, which can be used to identify the vehicle with a good level of precision without demanding extra signal transmission. An Ultra Short Baseline acoustic positioning technique has been developed, simulated, and examined to identify an acoustic device source in three measurements using a tetrahedral, half-wavelength acoustic antenna.

USBL is a means of offering a place of the ROV using means. It works by using a Differential Global Positioning System (DGPS) produced place and a precise going, message, roll and heave sensor to position a transceiver sustained a boat on the surface. The transceiver is provided with a phased transducer array capable of solving both varieties and keeping to a transponder or -responder sustained the ROV. Since the position and attitude of the transceiver on the boat is known, the absolute position of the ROV is able to be produced by mixing that place with the comparative variety, detail and keeping from the Ultra Short Baseline system. This makes for the most simple and efficient means of offering a place in open the water conditions.

Source: https://bit.ly/2I8cNfE

Underwater Tracking Systems: Choose Best Offshore Rental Equipment

How do you track a fish underwater? Rethinking the conventional, ad hoc approach to acoustic telemetry, scientists have suggested a new state-space model for analyzing fish movement data gathered by marine observation networks. Its goal is to evaluate the doubt associated with this imperfect locating system and to improve its accuracy.

The radio signals that are the central source of traditional GPS cannot pass through seawater. But sound moves extremely well, so scientists often use acoustic telemetry to calculate an individual fish's place. That means attaching an acoustic transmitter to a fish and then using a network of stationary underwater listening stations to monitor for the short clicking sounds to be that these tags emit. When a fish can swim near to a recipient, its click is heard, and its individual code number is recorded.

Underwater Tracking Systems evaluate roles comparative to a framework of baseline stations, which must be implemented prior to functions. In the case of a long-baseline (LBL) program, a set of three or more baseline transponders are implemented on the sea floor. The location of the guideline transponders either comparative to each other or in global coordinates must then be calculated precisely. Some techniques assist this task with an automated acoustic self-survey, and in other cases, GPS is used to determine the position of each baseline transponder as it is implemented or after deployment.

Okeanus keeps a vast stock of offshore rental tools, adaptors, and equipment, such as one of the biggest largest stocks of drilling risers and parts in the whole of European countries – our large stock indicates many items can be offered 100% back up and immediate call-off. Our wide variety of offshore rental tools and subsea equipment is capable of providing assistance in a variety of difficult deepwater installations.

Our services go beyond offshore rental equipment to also include fishing reels, launch and recovery systems (LARS), various lightness, underhand moving techniques and more. In addition to our rental services, we also provide our own experienced installation service teams and engineered technological solutions to assist your subsea technical innovation, installation, commissioning and maintenance projects.

Subsea Equipment Rental and Installation Equipment

As an oilfield alternatives company, our offshore rental equipment is state of the art and designed specifically for complicated deepwater and ultra-deepwater oil production, submission, program assistance alternatives and products used between the system and the wellhead. If necessary, we are able to design and build to rent based on your specifications.

It’s not all about one-off, permanent solutions, and services. Equally to the important to the success are a project are a myriad of recurring, impressive tools and services that are available quickly and that you can with confidence trust them to do the job you need them to do.

Okeanus offers this on-demand, on a lease or rental basis, decreasing capex by reducing the need for long-lasting buys. We merge our years of engineering experience to provide a variety of offshore rental equipment and services. Our life-of-field solutions are supported by our maintenance and service experts so our customers get all the quality they expect from Okeanus, with a versatile business structure.

Role Of Launch And Recovery System In Oceanography

Remotely operated vehicles play a key role in subsea operations, and our extensive portfolio focuses on effective heave compensated systems. The LARS is developed to handle the largest work class ROVs to absolute depths going above 4000 meters, implemented over the side or through the largest work class. Our techniques are developed, built and qualified with a high focus on soothing managing of umbilical and third-party equipment. With the cost and time loss, you experience with a broken wire, it is important for us to give techniques which help our customers to increase umbilical lifetime and minimize operation downtime. Safe handling of ROV equipment on outdoor deck is assured by the remote control pallet skid program that enables the full outdoor deck to be used.

Normally, ROV techniques are launched from the aft of a vessel or over one of the sides using Active Heave Compensation winches that allow them to operate in heavy seas.

Protecting the ROV

Often the most dangerous part of an ROV jump is the launch and recovery. Winds and sea swell have a tremendous impact on the release, function, and restoration of tethered vehicles from a vessel.

In heavy seas, pitch and roll can change the position of an automobile in relation to the water by many meters in seconds, causing potentially damaging snatch loads.

Strong winds can also cause unwanted activity of suspended equipment and powerful winds can even render launching impossible. Launch and recovery system is developed to make critical subsea functions safe and effective in the harshest environments worldwide. Methods are extremely reliable and accurate and are developed to hold up against extreme dynamic forces and are provided with a dynamic factor of 3.

Launching the automobile from the center of the boat reduces the effect of sea conditions as the center is the most constant place with regards to both pitch and roll. It also provides protection from the wind.

This ingenious winch and scientific research equipment allow ROV launch and operation in sea states far out of the reach of ordinary vessels. The protected launch and recovery significantly expands the functional screen, reducing costly downtime.

Precise and complicated program synchronizes ROV launch

The scientific research equipment used to produce the ROV through the center of the boat utilizes three different types of winches that run at different speeds. The control system includes functions, such as opening and closing the moon pool doors and computerized ROV alignment and emergency recovery features. Making this design work together as a fully automated system required accurate, advanced engineering and project management.

When we engineering and project management, we offer our skills right through the service process and follow that with a lifetime service dedication, and we explain the good reasons why self-tensioning and shock absorbing systems ensure team safety and widen the operational window for users.

Design options are available to cater for a variety of operator needs. Door selection takes into consideration ship design, a method of ROV launch and sea-state. Manages may be included in the management program of the Launch-and-recovery techniques (LARS) for a simple function.

Source: http://okeanus.over-blog.com/2018/08/role-of-launch-and-recovery-system-in-oceanography.html