MTR100 '13 Sea-Bird Electronics

Marine Technology Reporter
Wednesday, September 11, 2013

13431 NE 20th Street
Bellevue, Wash. 98005
Tel: 425-643-9866
Email: seabird@seabird.com
Website: www.seabird.com
CEO/President: Dr. Norge Larson
Engineering Director: Tom Mitchell
Number of Employees: 120

Testing Capabilities

More than 40,000 calibrations performed per year, with conductivity, temperature, and dissolved oxygen calibration baths (27), 10,000 psia hydrostatic pressure test vessels (3), deadweight testers, in-house metrology laboratory (water triple-point cells, gallium melting point cells, IAPSO Standard Seawater, 8400B Autosal).

The Company:

Sea-Bird Electronics manufactures oceanographic CTDs and integrated water sampling systems. The CTDs are designed to measure conductivity, temperature, pressure (depth), dissolved oxygen, and other variables, enabling the determination of salinity, density, and other properties contributing to ocean circulation, marine ecosystem function, and global climate dynamics.

The Tech:

CTDs on research vessels, fixed moorings, moored profilers, autonomous drifting profilers (Argo floats), surface salinity floats, AUVs, autonomous gliders, and large-scale networked sensor arrays in ocean observatories present different challenges in acquiring high-accuracy data. The instruments are designed to minimize dynamic errors and preserve initial accuracy. Sea-Bird profiling CTDs share key features that minimize dynamic errors. There is an enclosed flow path within which critical sensors (T, C, DO) are located. Pumping water through the system forces all measurements to be made on the same water sample, with predictable delay and flow effects. By pumping at a constant rate, T and C sensor response times can be engineered to match and remain independent of CTD speed. This dramatically reduces salinity spiking errors produced when sensors with different response times encounter a gradient. Since the water transit time is fixed, lag times between measurements are a known constant, so measurements can be aligned and coordinated relative to pressure in hardware or data processing. Sea-Bird moored CTDs also make measurements in an enclosed flow path, for different reasons. Pumping delivers a new water sample to the conductivity and oxygen sensors, independent of ambient circulation. Between measurements, water is trapped in the sensors and plumbing; anti-foulant concentration accumulates to effective levels by diffusion, preserving initial accuracy for long deployments.



(As published in the July/August 2013 edition of Marine Technologies - www.seadiscovery.com)

Maritime Today


The Maritime Industry's original and most viewed E-News Service

Maritime Reporter July 2016 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

People & Company News

Swiber Applies for Judicial Management Instead of Liquidation

Singapore oilfield services company Swiber Holdings Ltd said on Friday it has applied to place itself under judicial management instead of liquidation.   Swiber

Cenac Marine to Christen New Vessel, Donate Barge

A ceremony will be held July 29 at Cenac Marine Services headquarters in, Houma, La. To commemorate the christening of its newest vessel, M/V Quincey Cenac, as

Concordia Maritime Posts Q2 Profit

Facing a “gradually deteriorating market,” Sweden based tanker shipping company Concordia Maritime said it was able to post a profit in Q2 2016 based on high vessel

Vessels

Horizon Delivers Towboat Marty Cullinan for FMT

In June 2016 Horizon Shipbuilding, Inc. of Bayou La Batre, Ala. delivered the M/V Marty Cullinan, a 120’ towboat with a retractable pilot house, to its home port of New Orleans, La.

New Dredger for North Carolina’s Coastal Waterways

The North Carolina Department of Transportation recently took delivery of a new, fully customized cutter suction dredge, which it christened the Dredge Manteo in a ceremony held April 28,

New 'Mega Passenger Ship' for Star Cruises

Elomatic Ltd and Deltamarin Ltd have signed a tri-party engineering contract with shipbuilder MV Werften for the design of Star Cruises’ new Global Class “mega passenger ship,

 
 
Maritime Contracts Naval Architecture Pipelines Pod Propulsion Port Authority Salvage Ship Electronics Ship Simulators Shipbuilding / Vessel Construction Winch
rss | archive | history | articles | privacy | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.1454 sec (7 req/sec)