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M3 Sonar®

Product Name:M3 Sonar®
Description:The Kongsberg Mesotech M3 Sonar is a multibeam system with both imaging and profiling capabilities. The M3 Sonar provides high-resolution and easy to interpret images by combining the rapid refresh rate of a conventional multibeam sonar with image quality comparable to a single-beam sonar. Detection of small objects out to 150 meters combined with a 120 degree to 140 degree field of view allows the operator to see the complete underwater picture in real time.
Date of first release:2011
Mounting and deployment 
Physical properties of transducer head 
Length [m]:0.22
Width [m]:0.22
Height [m]:0.16
Min. external power [V]:12
Max. external power [V]:36
Max. power consumption [W]:22
Used Sonar Methods 
Type of system:Multibeam Imaging & Multibeam Echosounder
Bottom Detection Method:Amplitude / Phase / Blend
System Parameters 
Min. frequency [kHz]:450
Max. frequency [kHz]:550
Number of selectable frequencies:1
Min. depth [m]:0.2
Max. depth [m]:150
Depth resolution [mm]:10
Max. Slant Range [m]:150
Max. swath as a function of depth:175
Max. measurements per ping:256
Ping frequency [Hz]:40
Min. beam width across track [deg]:0.95
Min. beam width along track [deg]:3
Bottom Coverage 
Footprint in nadir direction [m]:
Footprint at max. horizontal range [m]:
Smallest identifiable cube [m3]:
Max. swath width [m]:
Equal footprint spacing:
Max. number of points per ping for side scan operation:
RMS of nadir depth measurement [m]:
Intended S44 order:
Max. survey speed for specified RMS [kt]:
Speed of sound 
Real-time correction of refraction at transducer head:N
Real-time integration of SV-profile:
Explanation of SV-profile application process:
Motion compensation 
Motion sensors compatible to the system:System comes with Integrated tilt and pan/tilt con
Required pitch uncertainty [deg]:
Required roll uncertainty [deg]:
Required heave uncertainty [m]:
Compatible software:The M3 Software was developed specifically for the M3 system to manage communications with the sonar head and operate all beam-forming and imaging processing. Four Pre-Defined Modes 1) Imaging: Long range navigation with high speed update 2) Enhanced Image Quality (eIQ): Greatest image quality (0.95° angular resolution) from a short range with a slower update 3) ROV Navigation: Selects eIQ or imaging based on range 4) Profiling: Narrow 3° beam used to generate a 3D point cloud Supported data acquisition software: - Hypack Hysweep - QPS QINSy - EIVA NaviSuite - OIC SAMM - Forum VisualSoft Suite Supported post processing software - CARIS HIPs & SIPs - Hypack - QPS QINSy - EIVA NaviSuite - Forum VisualSoft Suite
Compatible hardware:The M3 comes as a complete working system. It can be pole mounted on a surface vessel. The system is also suitable for a wide range of vehicles from large work-class ROVs to small observation class ROVs.
Real-time access procedure:Operator can see the complete underwater picture in real time.
Maintenance criteria 
Mean time before failure [hr]:
Mean time to repair [hr]:
More information 
Distinguishable features:Imaging & profiling abilities, time savings

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