Finally, an affordable multibeam echosounder! Bathymetric surveys with MBES technology can be more than ten times faster than surveys with single-beam echosounders. With its small size and low cost, the Surveyor 240-16 is a perfect fit for deployment on the new generation of small Uncrewed Surface Vessels (USVs)
Deployed on a USV like the Tawhiri, Surveyor is ideal for surveys in very shallow waters, yet can handle surveys in depths to 50 meters and more.
Product description
Surveyor 240-16 is a 240 kHz multibeam echo sounder (MBES). It has a transmit beam approximately 4 degrees along track, 80 degrees cross track, and a 16-element receive array.
Surveyor 240-16 utilizes an angle-of-arrival estimation algorithm to measure cross track location of specific acoustic reflectors well in excess of the accuracy achievable with conventional beam-forming techniques. Thus, although the effective cross track beam width with conventional beam forming is about 7 degrees, Surveyor can resolve angle of arrival to less than one degree.
Depending on the range and acoustic properties of the bottom, Surveyor typically identifies 10-15 acoustic targets across track within a swath width of 80 degrees. The position and depth of these targets are then accurately calculated by range and angle of arrival.
Surveyor includes a built-in IMU. SonarView uses the Surveyor IMU for pitch and roll compensation and combines this with position and heading information from the vehicle to accurately place each depth measurement in its correct geographic location.
