Fugro N.v.

Fnv IP B.v.

Chad Pastor

Disclosed herein is a towed sensing apparatus for underwater profiling. The apparatus includes a sensor array including one or more sound velocity sensors for determining vertical water column profile information. A sensor housing portion can include a receptacle for receiving the sensor array, the receptacle including one or more apertures for providing water flow to the sensor array during subsurface deployment of the apparatus. A coupling mechanism can be provided to removably couple the sensor array within the receptacle by coupling the sensor array to an inner surface of the receptacle. The weighted nose portion can be coupled to the sensor housing portion and can have a greater mass than a second end of the towed sensing apparatus opposite from the first end. One or more hydrodynamic surfaces can extend radially from the towed sensing apparatus and can be arranged to exert a respective force when the apparatus is deployed.

Moving velocity profiler for vessel-based underwater sensing

Disclosed herein are systems and apparatuses for sonar acquisition using a towed platform (e.g., a towfish). A sonar acquisition towed platform apparatus can include one or more sidescan sonars coupled to a towed platform and a gyroscopic sensor array rigidly coupled to an outer surface of the towed platform. The gyroscopic sensor array can be external to the towed platform and to the one or more sidescan sonars. The gyroscopic sensor array can generate sensor information indicative of a heading of the towed platform and a roll of the towed platform. The sonar acquisition towed platform apparatus can further include a transceiver for transmitting survey information including the sensor information obtained using the gyroscopic sensor array and sidescan sonar information obtained using the one or more sidescan sonars, the sensor information corresponding to the sidescan sonar information.

Sidescan sonar towfish with fiber optic gyroscopic sensing

A trigger weight camera device that is retrofittable to existing equipment to image underwater objects and underwater processes, and method of using the device to image the underwater objects and the underwater processes, and operate as a trigger weight for the existing equipment.

Retrofit trigger weight camera device and method

A buoyant camera device that is mechanically connectable to existing equipment to image underwater objects and underwater processes, and method of using the device to image the underwater objects and the underwater processes.

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Lafayette, LA, United States of America

Chad Pastor