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quency modulated pulses utilizing the company’s proprietary locate, classify and identify buried and partially proud ob- full spectrum CHIRP technology. The system uses ?at multi- jects. This low-frequency acoustic imaging system can be channel hydrophone array to generate high resolution images operated in real-time for general survey purposes such as of the sub-bottom stratigraphy in oceans, lakes and rivers and cable and pipe tracking and route surveys or have the data provides excellent penetration in various bottom types, says post processed utilizing synthetic aperture sonar process-

Doug McGowen, Director, Sales and Marketing at EdgeTech. ing to render 3-dimensional images of buried objects.

The 3400-OTS receiver array is segmented for standard Exail’s new Echoes Compact provides high-resolution sub-bottom pro?ling operations or “pipeline” mode for images of sedimentary deposits and buried objects across a optimal location and imaging of buried pipelines or cables. depth range from very shallow waters to 400m. The system

The system offers real-time re?ection coef?cient measure- is speci?cally designed for USVs and small vessels as it fea- ments. “This unique ability of the EdgeTech sub-bottom tures low power consumption and compact dimensions. It pro?ler system allows users the ability to collect complex is a portable solution suited to river, lake and ocean sur- analytic data using linear system architecture to measure veys, whatever the seabed topography. Exail says it offers sediment re?ection and analyze sediment type determina- good penetration of clays and sands due to its powerful tion,” says McGowen. Additionally, the system has discrete low-frequency signal, together with 7.5cm vertical resolu- transmit and receive channels allowing for continuous data tion thanks to a wide bandwidth from 5 to 15kHz.

collection resulting in a high ping rate, particularly impor- Exail sold its ?rst Echoes Compact to Hydroconsult. The tant for construction and pipeline surveys. company is serving as a consultant and personnel provider

At the high end of the market, EdgeTech has just started to a major multi-energy ?rm in Africa which is analyzing to deploy the buried object sonar system (eBOSS) which the sub-bottom before the installation of telecommunica- is capable of penetrating the seabed to accurately detect, tion cables and pipelines in West Africa.

january/february 2025 OFFSHORE ENGINEER 33