echo sounder

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  • noun

Synonyms for echo sounder

a measuring instrument that sends out an acoustic pulse in water and measures distances in terms of the time for the echo of the pulse to return

References in periodicals archive ?
com)-- A division of Unique Maritime Group (UMG) which is one of the world's leading integrated turnkey subsea and offshore solutions provider, Unique System FZE has recently supported a significant hydrographic project that included the installation of Kongsberg's EM 2040 multibeam echo sounder units for “Bayanat for Mapping & Surveying Services (Bayanat)” in 2 different vessels at Abu Dhabi, UAE.
Table 1 Results of a 2-sample t-test and the standard difference in a comparison of trawlable and untrawlable populations for different parameters derived from the data collected with the Simrad ME70 multibeam echo sounder during a cruise in 2009 aboard the NOAA Ship Oscar Dyson.
A typical system suite includes: 1) positioning--DGPS, 2) subbottom profiler--Chirp, 3) echo sounder --dual frequency, 4) sidescan sonar--dual frequency, and 5) magnetometer--low noise.
For each GPS position information (every two seconds), X and Y coordinates were recorded along with the value Z (depth) collected by the digital echo sounder.
Loch Ness investigations have included lures, fish baits, exploding light bulbs, submarines, scanning sonars, echo sounders, telephoto cameras, underwater cameras with strobe flashes, movie cameras, video and, now, digital cameras too.
One example of how technology has changed fishing is echo sounders.
PD Ports has invested pounds 250,000 in the new Tees Navigator catamaran, plus another pounds 250,000-worth of equipment, which will be used for hydrographic surveys using echo sounders to check the river depth.
The new Smart Pilot line up seamlessly integrates with Raymarine radar, charting and echo sounders systems.
Echo sounders, radar, even satellite tracking helped captains locate schools of fish.
These faults had been discovered with the old wide-beam echo sounders, but their structural complexity and influence on neighboring ridge segments could not be appreciated without the new generation of maps.
The sophisticated fish radars and echo sounders are now available for about pounds 300.
These vessels employ a range of equipment including side scan sonar, multi-beam echo sounders and video cameras to locate and identify aircraft debris.
While testing echo sounders from the institute's flagship vessel R/V Falkor, they discovered the wreck of the Terra Nova last month.
The echo sounders estimated the distance to the bottom with the amplitude-based algorithm (with a threshold of -36 dB re 1 [m.
The ROV is equipped with state-of-the-art positioning equipment, different types of sonar sensors and multi-beam echo sounders, cameras and monitoring equipment.