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 Reporter August 2013 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

People & Company News

Del Mar Signs Agency Agreement with Ciramar

Del Mar Marine Corp. announced it has signed an agency agreement with Ciramar Shipyards allowing the company to promote Ciramar Shipyard´s docking and facilities

Bouchard Orders Two Newbuild ATB Tugs

Morton S. Bouchard III, President and CEO of Bouchard Transportation Co., Inc., today announced the next step in Bouchard Transportation Co., Inc.’s ongoing fleet

Great Lakes Shipyard Wins EPA Drydock Contract

Great Lakes Shipyard has been awarded a contract for the United States Environmental Protection Agency (EPA) vessel R/V Lake Explorer II. The scope of work will include drydocking,

Marine Science

Coast Guard Preps for Arctic Research

A team of scientists from the U.S. Coast Guard (USCG) Research and Development Center (RDC) will depart from Seward, Alaska, for a technology evaluation in the

Jinhai Heavy Industry Secures Another Invention Patent

Jinhai Heavy Industry of China has received patent rights for its large ship superstructure hoisting method after a state intellectual property review. The patent rights is for twenty years.

Scientific Team Arctic-bound Aboard Cutter 'Healy'

A team of scientists from the Coast Guard Research and Development Center (RDC) is to depart shortly from Seward, Alaska, for a technology evaluation in the Arctic

Vessels

Fraser Yachts' 5th Sale in 10 days

Fraser Yachts announced this morning its fifth yacht sale in just ten days. Whilst the summer period is traditionally a quieter time for yacht sales 2014 seems

Bouchard Orders Two Newbuild ATB Tugs

Morton S. Bouchard III, President and CEO of Bouchard Transportation Co., Inc., today announced the next step in Bouchard Transportation Co., Inc.’s ongoing fleet

Great Lakes Shipyard Wins EPA Drydock Contract

Great Lakes Shipyard has been awarded a contract for the United States Environmental Protection Agency (EPA) vessel R/V Lake Explorer II. The scope of work will include drydocking,

Ocean Observation

Rosneft to Carry Out Ecologic Fishery Research in Laptev Sea

For the first time in history of Arctic Rosneft will carry out integrated ecologic fishery research on three licensed sites (LS) of Laptev Sea: Anisinsko-Novosibirsky,

Scientific Team Arctic-bound Aboard Cutter 'Healy'

A team of scientists from the Coast Guard Research and Development Center (RDC) is to depart shortly from Seward, Alaska, for a technology evaluation in the Arctic

BMT Oceanica Wins Major Water Corporation Bid

Marine and coastal environment specialist, BMT Oceanica (BMT), a subsidiary of BMT Group Ltd, is delighted to announce that it has won the bid to provide Ocean

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Security Maritime Standards Navigation Offshore Oil Port Authority Ship Electronics Ship Repair Sonar
rss | archive | history | articles | privacy | terms and conditions | 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: 0.2225 sec (4 req/sec)