2017-03-10 11:34:34

SeaSprite Sonar for VideoRay

VideoRay LLC announced that Tritech International has produced the SeaSprite sonar as a new accessory for the VideoRay ROV. The SeaSprite weighs just 5 ounces in water and is ideal for small ROVs and AUVs in military and covert uses. By equipping the VideoRay with the SeaSprite sonar, obstacles can be located, identified, and measured in low visibility environments. The SeaSprite simply plugs into any VideoRay Pro II and features an extremely fast scan rate to match VideoRay's high maneuverability. No calibration is needed. When plugged into a Pro II, the SeaSprite can be used in low visibility conditions and... (read more)
2004-03-05 12:00:00

Comprehensive Sonar Training Seminar

EdgeTech will be conducting a comprehensive sonar training seminar in Singapore from 14-16 July 2008. The course will cover sonar theory, operational training, system maintenance and post processing data.   The format will be two days of classroom instruction and one day at sea. The seminar will take place at the Holiday Inn Atrium Hotel.  For additional information or to reserve your spot please contact Elizabeth Thomas or call +65 6518 0777.  (read more)
2008-06-23 02:34:14

Side-scan Sonar Demonstrations

During Ocean Business 2009, L-3 Klein will be running live demonstrations of the L-3 Klein System 5000 V-2. The demonstrations will be conducted on-board the Bill Conway on Tuesday, 31st March at 1530, Wednesday, 1st April at 1400 and Thursday, 2nd April at 1030.     The L-3 Klein System 5000 V2, with the added swath bathymetric capability, employs advanced Interferometric signal processing to produce simultaneous estimates of the seabed topography out to the full swath extent of the sonar, typically 10 to 12 times the overall altitude of the tow fish. This added seabed topographic measurement is post processed... (read more)
2009-03-19 09:25:45

Acoustic Classification by Sonar

Disparate approach successful in cost-effective mapping
A breakthrough in signal conditioning has lead to significant improvements in single-beam and swath classification. With modern computers, this allows cost-effective bottom classification across multiple sonar platforms. The common dataset generated as a result of the highly successful shallow-survey conferences sponsored by the University of New Hampshire Ocean Mapping Group and the Defence Scientific and Technical Organisation of Australia is an ideal proving ground for classifying the same seabed using multiple platforms. The results of processing and classifying a common dataset are presented in this article. Acoustic seabed classification is in wide use for applications from habitat mapping to mine... (read more)
2008-01-01 01:00:00

Sonar Uncertainty Instrument

L-3 Klein (USA) is to present the HydroChart 5000 (HC5000) Sonar Uncertainty Model at the upcoming Shallow Survey 2012 Conference to be held in Wellington, New Zealand, from 20th to 24th February 2012. The HC5000 is a portable, high-speed hydrographic survey system able to simultaneously collect IHO-quality bathymetry and co-registered, high-resolution, multi-beam side scan sonar data.   In order to qualify the system for use in hydrographic survey, L-3 Klein developed an uncertainty model which makes use of existing theoretical models of acoustic propagation, bottom and surface scattering, array processing, bathymetry signal processing, and statistical processing. This model was statistically... (read more)
2012-01-17 02:18:25

Edgetech Sonar Demonstrated

EdgeTech is to demonstrate the latest technology in side-scan sonar and swath bathymetry at the upcoming US Hydro 2011 Conference in Tampa, Florida, from 25th to 28th April. EdgeTech's vessel, the Ocean Research II, will be outfitted with various equipment. EdgeTech's 4600 combines the high resolution 2D capabilities of a side-scan sonar with the 3D imagery of a multi-beam echo sounder. The result is a highly effective survey tool that produces real-time high resolution 3D maps of the seafloor and is simple to use and cost-effective.The 4200 is EdgeTech's most versatile side-scan sonar system and can be configured for almost... (read more)
2011-03-04 12:00:00

Side-scan Sonar Seminar

A Side-scan Sonar Operations and Maintenance Training Seminar is to take place from 17th to 19th May, 2011. The seminar will be conducted at L-3 Klein's Facility in Salem, NH, USA. The training will include two days of classroom instruction and 1 day of on the water training; lunch will be provided daily. This seminar is geared to the operator, as well as to the manager, who wants a better understanding of Side Scan Sonar techniques. The course is open to any user of side-scan sonar regardless of brand, experience, or occupation. The instructor for the course will be Garry... (read more)
2011-03-07 12:19:12

Sonar Interface Unit

The Octopus 160 sonar interface unit's design and is compact, rugged and weather-proof. Compatible with EdgeTech's work-horse 272TD dual-frequency side-scan sonar, it is simple to operate and is suitable for small boat use in many types of underwater survey. Housed in a rugged custom Pelicase, the 160 is highly portable and it can be operated with the lid closed allowing uninterrupted operation in harsh environments.   Another popular feature is the new user interface for all controls and once configured for a specific towfish, this needs no further adjustment. With direct connection to standard EdgeTech 272TD tow cables and full... (read more)
2009-10-09 10:21:17

3D Sonar Technology

The journey from oil and gas to homeland security and back again
Since its introduction many years ago, survey sonar has evolved steadily, but is still a difficult and non-intuitive survey tool, requiring large amounts of processing to arrive at the most basic end product. Initially, anyone wanting to survey or inspect the underwater environment was limited to single beam echo-sounders, in simple terms one-dimensional sonar, yielding very little quantifiable data. These in turn were developed into mechanically scanned sonars, and subsequently into today’s high performance multi-beam and forward looking sonars which are the back-bone of the survey industry. Even the very best commercially available multi-beam sonar delivers only 2 dimensional data... (read more)
2008-01-01 01:00:00
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