Xchange Sensor Heads Now Calibrated in Europe

AML Oceanographic (AML, Canada) has partnered with OSIL to offer Xchange sensor recalibration services at OSIL’s facilities in the UK. With a European recalibration centre, field-swappable sensor-heads become even more convenient for European users of oceanographic instrumentation. OSIL is expected to begin accepting Xchange sensor heads for recalibration by 1 March 2014. AML’s Xchange line is the industry’s only series of field-swappable sensor heads. Each sensor head contains its own embedded calibration, allowing the sensor to work with any AML instrument. Field-swappable sensors also streamline recalibration; instead of sending the entire instrument back to a calibration centre, a recalibrated sensor-head... (read more)
2014-02-06 09:09:15

Marine Electronics Repair Capabilities Upgraded

Northrop Grumman Corporation (VA, USA) its Sperry Marine North American Support Center in Harvey (LA, USA) is now authorised to perform Level III repair and calibration of Hatteland flat-screen monitors for electronic chart display and information systems (ECDIS). The Level III certification means that the Sperry Marine facility can now perform ECDIS calibration requirements mandated by the International Maritime Organization (IMO) for the Hatteland products. The Hatteland flat-screen LCD monitors are used in Sperry Marine's new-generation VisionMaster FT series of radars, ECDIS and TotalWatch multi-function workstations.   The repair activity is defined and supported by a formal service agreement between... (read more)
2007-11-29 09:45:56

Sound Velocity Sensor

Valeport's miniSVS sound velocity sensor has been upgraded to offer higher specifications, with temperature or pressure measurement options. The miniSVS has been engineered to now include a high-accuracy PRT temperature sensor to increase versatility and compatibility with third-party systems. Together with standard titanium housing and a specially developed carbon composite sensor, the miniSVS offers durability and resistance to corrosion. The carbon composite sensor offers benefits in resisting deformity due to impact, thus not affecting calibration, and has virtually zero expansion with temperature, so that acoustic path length remains constant whatever the water temperature. Valeport's digital signal processing technique ensures that... (read more)
2005-06-23 12:00:00

The MRU and SRF Aligned (I)

With increasing accuracies of positioning and multi-beam systems, alignment of the motion reference unit (MRU) is becoming increasingly important. Although most (if not all) multi-beam surveyors use the patch-test to resolve the angular offsets between the multi-beam head and the MRU, this test does not give us the angular offsets between the MRU and the ship’s reference frame (SRF). In addition to this, any misalignment between the vertical rotation axis of the MRU and the SRF (yaw-angle) will introduce cross-talk between pitch and roll.<P> The alignment of the threeaxes is also becoming increasingly important at shallower depths as we should... (read more)
2009-01-05 12:00:00

Acoustic Seafloor Classification

A simple model-based method for single-beam echo sounders
Acoustic seabed classification is becoming increasingly important for many fields, including marine geology, hydrography and navigation, coastal engineering, environmental sciences, marine biology and fisheries. The main advantages over conventional bottom grabs are the continuous, non-invasive probing of the seabed and a vast reduction in survey time and costs. The difficulty of acoustic methods is associated with complicated acoustic wave scattering off the rough and layered seabed, which makes interpretation of the received signals cumbersome. In other words: how do we retrieve bottom type from the echo characteristics? This is why acoustic seabed classification is still the subject of extensive research.... (read more)
2008-01-01 01:00:00

OSIL Sole Distributor Subsea Electronic Bottle Release System

OSIL has been appointed sole distributor of the Subsea Electronic Bottle Release System (EBRS), an userfriendly way to collect calibration samples at depths for converting to SPM (mg/l) and turbidity data. Specially designed to support the survey activities of the Environmental and Oceanographic industries, the STS Subsea Electronic Bottle Release System (EBRS) features three water bottles held in a stainless steel frame complete with an onboard pressure sensor and optional Turbidity sensor.  The electronic surface control unit allows the bottles to be fired at a known depth and a simultaneous Turbidity reading in Nephelometric Turbidity Units (NTU) can be taken.... (read more)
2007-03-28 12:00:00

SBG Releases Navsight Marine Solution

At this year’s Oceanology International in London, UK, SBG Systems released the Navsight Marine Solution, a full high-performance inertial navigation solution designed to make surveyors’ tasks easier in both shallow and deep water. Navsight Marine Solution integrates the latest generation of gyroscopes, accelerometers and GNSS receivers. Navsight provides high-performance motion and navigation data as well as a real-time heave accurate to 5cm. To allow surveying when wave frequencies are large or complex, the solution comes with a delayed heave feature. If higher performance is required, the surveyor can count on Qinertia, SBG’s INS/GNSS post-processing software. New calibration procedure for easy installation... (read more)
2018-03-20 11:25:57

New Houston Premises for Seatronics

Seatronics Inc., USA, is moving to a new, purpose-built facility in Houston, Texas, to expand its rental, sales and service work for customers throughout North and Central America. The facility has 15,000 square feet of floor space, which provides scope for expansion in all departments. The new plant, at 1319 West Sam Houston Parkway North, Suite 150, contains service facilities for cable moulding, connector assembly production and injection polyurethane moulding, along with a calibration laboratory, an electrical and electronic repair centre and capabilities for gyro calibrations, inertial navigation and Doppler velocity log special services. It will also have an acoustic... (read more)
2014-02-14 12:00:00

Valeport's Improved Sound Velocity Sensors Reach New Pitch

Valeport's innovative approach to oceanographic instrumentation has resulted in a series of incremental improvements to their world-leading Sound Velocity sensors. Customers with existing products can also benefit from the product improvements, with these upgrades being available upon request during routine service and calibration at Valeport.   The Sound Velocity sensors have had changes made to the timing system and signal processing algorithms which now enable unrivalled levels of accuracy at ±0.020m/s.  These products will also work in an operating range of 1375 to 1900m/s, covering all known environments including the Dead Sea and Marianas Trench.  In addition, the products now... (read more)
2009-03-30 03:44:29

Forum Subsea Rentals Adds More iXBlue Systems

Forum Subsea Rentals, UK, has made a further significant investment in inertial navigation technology from supplier iXBlue. This latest investment makes Forum Subsea Rentals one of the world’s largest stockists of iXBlue products. The equipment is due to be utilised for ROV positioning in survey and construction support applications on major projects worldwide. The contract includes a quantity of ROVINS subsea inertial navigation systems as well as OCTANS gyrocompasses. These OCTANS gyrocompasses can be upgrated to the full INS capability of the ROVINS. The positioning solution provided by ROVINS can be enhanced with the use of a Doppler Velocity Log... (read more)
2013-04-10 03:14:44
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