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XID or Transducer ID is a device communications bus system designed by Airmar Technology Corp., US [1] to enable an echosounder to identify the type of ultrasonic transducer being connected. This allows the echosounder to adjust for the specific properties of the transducer such as frequency, power rating, beam pattern.
A multibeam echosounder is a device typically used by hydrographic surveyors to determine the depth of water and the nature of the seabed. Most modern systems work by transmitting a broad acoustic fan shaped pulse from a specially designed transducer across the full swathe acrosstrack with a narrow alongtrack then forming multiple receive beams (beamforming) that are much narrower in the ...
The transducer is in direct contact with the hull or other surfaces, causing them to propagate the sound. Hull materials such as concrete and wood do not provide good antifouling since they contain many voids that dissipate/absorb the sound. Control Unit: The sound source and amplifier that provides the signals and power to each transducer. A ...
The transducers were either contained in one hull-mounted package or with two packages on either side of the vessel. Next the transducers evolved to fan-shaped beams to produce a better "sonogram" or sonar image. In order to get closer to the bottom in deep water the side-scan transducers were placed in a "tow fish" and pulled by a tow cable.
In 2020, Donald Trump pardoned cybersecurity executive Chris Wade for crimes that had been sealed. Unsealed documents show he was part of a sophisticated spam email operation busted by an informant.
In 1940, US sonars typically consisted of a magnetostrictive transducer and an array of nickel tubes connected to a 1-foot-diameter steel plate attached back-to-back to a Rochelle salt crystal in a spherical housing. This assembly penetrated the ship hull and was manually rotated to the desired angle.
New research finds a link between eating out of plastic takeout containers and heart disease. The study adds to growing evidence that plastic chemicals may negatively influence your health.
New York Mets infielder Nick Madrigal dislocated his non-throwing shoulder Sunday in a spring training game against the Washington Nationals. Madrigal is fighting for a roster spot with the Mets ...
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