SOUTH MULTI-BEAM ECHO SOUNDER T200

Author: southDate: April 29, 2021View: 510

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There are some differences when we use single beam echo sounder and multi-beam echo sounder for hydrographic survey. As the above pictures, Picture A measured with single beam echo sounder system, Picture B measured with multi-beam echo sounder system. If we need to use for volume calculation, salvage, under water dragging, and under water survey, SOUTH T200 multi-beam system can bring you higher accurate solution for better economic effect. 


Why multi-beam echo sounder can get much higher resolution? See as below picture, single beam echo sounder is only one beam for sounding transmission with around 7° transmit angle. But multi-beam echo sounder normally can transmit hundreds beams at the same time with around with 1° transmit angle. We take SOUTH T200 as example, T200 is 512 beams, 1°×2° transmit angle. As the red lines of below picture, multi-beam can get the more reliable topography under water. 


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Below picture shows the detecting performance of SOUTH T200, this is a channel topography survey project. 


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SOUTH T200 measured in a rip-rap project. 


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Multi-beam echo sounder system normally consist: multi-beam data process unit, multi-beam transducer, Inertial navigation system (IMU + RTK), sound velocity profile, sound velocity sensor,  software and power supply equipment. See as below picture: 


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INS:  Inertial Navigation System + dual antenna RTK. INS is used for correcting the latency, motion and heave. 


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SV:   Sound velocity sensor, normally combine together with the multi-beam transducer, to get the real-time water surface sounding velocity.

SVP:  Sound velocity profile, normally use for measuring the layering velocity of water. See as below picture, show the different sound velocity in different layers under water. 


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Above are the echo sounder hardware, and SOUTH multi-beam can support Hypack, QINSy and PDS software, let clients use worry-free.  


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With abundant project experiences and long time marine device manufacture,   SOUTH Multi-beam echo sounder system will bring you a professional and  high efficiency marine survey solution. 

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