Users' questions

What are the components of a side scan sonar?

What are the components of a side scan sonar?

Components: The components that commonly make up a sidescan sonar system are, a central processing unit (CPU) or data acquisition system, handling system made up of winch, tow cable, deck cable, string block, A-frame or davit and a towfish (see Figure 1).

How does a side scan sonar work?

How does it work? As the ship moves along its path, the transducer array sends out signals on both of its sides, sweeping the seafloor like the fan-shaped beam of a flashlight. Side scans search at constant speeds and in straight lines, allowing the ship to map the ocean bottom as it travels.

What is a disadvantage to the side scan sonar?

– Can be used in very shallow water. – Small objects (dm range) can be detected. Disadvantages: – No penetration below the seabed. – No precise geo-referencing.

What are the four uses of side scan sonar?

1.2. 2 Side-Scan Sonar

System Frequency (kHz) Applications
Side-scan sonar 10–1000 • Seafloor morphology • Gas bubbles in 2D • Reflectivity of the seafloor • Geological mapping • Underwater archaeology • Targets within the water column • Pipeline inspection

What is the difference between multibeam and side scan sonar?

Multibeam backscatter is the reflectivity measurement, where as the sidescan sonar imagery is the actual intensity of the return signal. The Sidescan sonar towing configuration provides greater maneuverability, as the depth of the tow-fish above the seafloor can be adjusted, in view of the swath width.

Is side imaging really worth it?

Side imaging is an extremely effective tool and is well worth the extra cost. Side imaging allows you to scan huge areas quickly, find key spots, structure, baitfish or even the fish you are targeting.

Whats better side imaging or down imaging?

Side imaging is going to be more useful in shallower water or when you are scanning for shallow diving fish, whereas down imaging sonar is going to serve the deeper fisherman who are fishing vertically better. So, the choice of sonar type comes down to what application you need a fishfinder for.