Gyrocompass and Motion Sensor

The OceanFOG north-seeking gyrocompass is a compact survey-grade gyro offering extremely fast run-up times of less than three minutes and also features an integral motion sensor that calculates heave to a typical accuracy of 5cm or 5%. Unlikeolder and potentially unreliable ring-laser gyros with their inherent longrepair times, the OceanFOG uses state of the art fibre-optic gyros and MEMSaccelerometers. What setsthe OceanFOG has a standard list price at around two-thirds of the price of itsnearest competitor and that is comes with a conditional lifetime warranty.   (read more)
2010-09-20 05:01:52

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

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

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

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

Valeport Introduces Pressure Sensor

UK-based Valeport has added a pressure sensor to its range. The ultraP has been redesigned from the connector up. This has resulted in an exchangeable pressure sensor which is ultrafast, compact and dependable, providing levels of performance that are demonstrably ahead of competitive products. Suited to system integrators and OEM applications, the new ultraP has been designed to allow users to maintain the best possible accuracy with the facility to select the depth rating that best suits the user’s operational depth, with options from 10 through to 600bar. The pressure sensor, housed within the ultraP’s rugged titanium casing, is a... (read more)
2015-05-11 09:26:20

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

Sonardyne Motion Sensor Technology

Sonardyne International has launched a new marine Attitude Heading and Reference System (AHRS): Lodestar. Lodestar has been developed to overcome the problems associated with conventional sensor platforms. The Lodestar AHRS is a natural extension of the Sonardyne product range and has been developed for seamless integration with the company’s widely used LBL (Long BaseLine) and USBL (Ultra-Short BaseLine) acoustic positioning systems. It will also be welcomed by users with any requirement for motion compensation to support operations in any sea conditions. These are likely to include platform stabilisation, dynamic positioning, buoy monitoring, subsea construction and towfish and ROV/AUV operations. Available... (read more)
2007-04-05 02:42:46

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
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