Peripheral Survey Sensor Guidelines

The ‘Guidelines for the management of peripheral survey sensors’ (IMCA S 021) have been developed under the direction of the International Marine Contractors Association (IMCA, UK) Offshore Survey Division management committee. The document provides guidance towards a more standardised approach to the timing of checks, verifications and calibrations, leading to more consistent maintenance practices and potentially better management of survey applications. In addition to the Executive Summary, the 24-page document includes a glossary and details of terminology used and an introduction. There is a section devoted to general considerations highlighting five main areas – testing as a function of time,... (read more)
2013-12-12 09:51:52

New Sound Velocity Sensor

The latest sound velocity sensor from Applied Microsystems Ltd. (AML) offers new hi-tech features in the smallest of packages. Available from OSIL, the Micro SV is constructed from new materials that eliminate thermal expansion and reduce corrosion. This means that users can obtain a greater level of accuracy at ± 0.05m/s, particularly in high-speed profiling applications, where the sensor can sample up to 25 times per second. The Micro SV has the capability to log-date continuously or on demand and by user-selected time, depth or sound velocity increments. The user benefits from standard Windows compatible software, which allows data to... (read more)
2004-02-13 12:00:00

Submarine Sensor Support Contract

Chelsea Technologies Group has been awarded a nine and a half year contract by J+S Ltd to provide post-design services for support of the Sonar 2081 submarine oceanographic sensor suite, under the Miscellaneous Sonar Equipment programme. The oceanographic sensors are designed to provide improved situational awareness and enhanced knowledge of the ocean environment. The robust, high precision sensors incorporate novel built-in-test technologies to extend calibration intervals and decrease maintenance costs.The work, which includes service, repair and calibration, will be undertaken at Chelsea's facility in the UK utilising the NAMAS accredited calibration laboratory. (read more)
2010-03-25 10:21:54

Wave Sensor for Echosounders

Innovation4C has presented Wavemapper, a heave sensor designed for single beam echosounders based on technology pioneered in space. Two years of development resulted in this sensor with space based algorithms. Wavemapper's MEMS technology offers a cost-effective miniaturised sensor platfom that has been succesfully tested on various vessels and under various port, harbour and coastal conditions.A dry unit or a wet version are available. The wavemapper product line requires no calibration, is according to the supplier small and portable, and claims to be cost-effective. (read more)
2006-09-21 12:00:00

Radar Level Sensor

The Valeport VRS20 Radar Level Sensor uses non-contact technology and can be installed easily. The device uses 25GHz pulsed k-band radar to measure water level to an accuracy of ±10mm. It has been designed to work with Valeport’s TideMaster tide logger or to operate as a stand-alone device with optional integrated GPRS telemetry. Alternatively it can interface with a third-party data logger. Non-contact radar technology avoids issues of traditional submerged devices, such as fouling and corrosion. Data collection is a simple process for the Valeport VRS20, with RS232, RS485 and SDI 12 communication as standard. With a wide range 9... (read more)
2013-01-29 12:00:00

New Manager Sensor Technology

Sensor Technology Limited. has appointed Richard G. Blacow Vice-President and General Manager of the corporation. He succeeds Dr S. Eswar Prasad, who managed the corporation since its start in 1983. Mr Blacow will be supported by a team of managers to include Joycelyn Jones, administration; David Waechter, research and development; George Czerny-Holownia, business development; Gery Yearsley, customer services; Vincent D'Souza, production operations and Shashi Prasad, finance. (read more)
2004-02-02 12:00:00

Marine Motion Sensor

Kongsberg Maritimes has introduced a new member in its family of Motion Monitoring Units at Ocean Business 2015. The MRU 5+ MK-II is part of a range of MRUs for diverse marine applications including: motion compensation of multi-beam echo sounders, high speed craft motion control and damping systems, heave compensation of offshore cranes, dynamic positioning, hydro acoustic positioning, ship motion monitoring, ocean wave measurements and antenna motion compensation and stabilisation. The MRU 5+ MK-II uses a new sensing element (Coriolis force resonator) in the new design of integrated MEMS gyros. With less than 0.002° angle noise, and Angle Random Walk... (read more)
2015-04-18 12:03:00

Multi-sensor Mapping

Integrating Data Streams for Coastal Science and Management
Among the most exciting advances in remote sensing are the innovations being made in multi-sensor data fusion. This can exponentially increase both the quality and quantity of information in the sensed environment. View Larger Map Scientists and practitioners in the National Oceanic and Atmospheric Administration (NOAA) and across the Federal government collect and use remotely sensed data for a wide range of activities including coastline mapping, military and disaster response personnel support, weather tracking, ecosystem monitoring and also to inform coastal planning officials and decision-makers on climate change adaptation strategies. Researchers continually strive to enhance the value, timeliness and efficient... (read more)
2009-02-27 12:00:00 Galen Scott, Nishanthi Wijekoon, Stephen White

Field-swappable Sensor Heads

AML Oceanographiics in the final stages of field-testing the oceanographic industry's first field-swappable conductivity and temperature sensors. C-Xchange and T-Xchange are added to the devices for sound velocity and pressure, making all sensors of the company field-swappable.     Each Xchange sensor contains its own embedded calibration, meaning that individual sensor heads can be moved from instrument to instrument without recalibration. This flexibility promises to alter the way that users interact with their instruments.   With C-Xchange and T-Xchange sensor heads, CTDs  will no longer need to be returned to a service centre for recalibration. Similarly, individual instruments can be reconfigured on the... (read more)
2009-09-24 11:02:25

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
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