The ADCP measures water currents with sound, using a principle of sound waves called the Doppler effect. A sound wave has a higher frequency, or pitch, when it moves to you than when it moves away. An ADCP anchored to the seafloor can measure current speed not just at the bottom, but also at equal intervals all the way up to the surface.

CTD stands for conductivity, temperature, and depth, and refers to a package of electronic instruments that measure these properties. By measuring the conductivity of seawater, the salinity can be derived from the temperature and pressure of the same water. The depth is then derived from the pressure measurement by calculating the density of water from the temperature and the salinity.

Single beam Echosounders are used to measure the depth to the seafloor by using the properties of acoustic waves. The time lag between the sound being emitted and the returning echo is used to calculate the water depth beneath the boat.

used to efficiently create an image of large areas of the seafloor. This tool is used for mapping the seabed for a wide variety of purposes, including creation of nautical charts and detection and identification of underwater objects and bathymetric features. used tool to detect debris and other obstructions on the seafloor that may be hazardous to shipping or to seafloor installations for subsea field development. In addition, the status of pipelines and cables on the seafloor can be investigated using side-scan sonar.

The 3400-OTS transmits wide band Frequency Modulated (FM) pulses utilizing EdgeTech’s proprietary Full Spectrum CHIRP technology. The system uses flat multi-channel hydrophone array to generate high resolution images of the sub-bottom stratigraphy in oceans, lakes, and rivers and provides excellent penetration in various bottom types.

wideband high resolution shallow water multibeam echosounder. the Sonic 2024 produces reliable and remarkably clean data with maximum user flexibility through all range settings to 500m. Sonic 2024 provides variable swath coverage selections from 10° to 160° as well as ability to rotate the swath sector.

• Model: DGMB 1311
• length overall: 13.2 m
• breadth: 11 m
• Pontoon Height: 1.6 m
• pontoon weight: 130 tons
• support capacity: 80 tons
• Power: 150 HP

• Torque: 4,800.0 N.m
• 73 HP
• Weight: 3.5 ton
• Water pump 120

• Mobile Drill B-46
• Torque: 8,000.0 N.m
• 98 HP
• weight:.5.ton
• Water pump 145 I/m