The Innomar parametric sub-bottom profilers (SBP, also called "sediment echo sounder") are used to image sub-seabed structures or objects within the seafloor or river beds.

Innomar's narrow-beam parametric sub-bottom profilers provide unequalled high-resolution sub-bottom data while achieving excellent penetration. This product line (Innomar SBP, also known as "SES", "SES-96", "SES-2000") covers all depth ranges and can be used in water depths between less than one meter and full ocean depth. Applications include the geophysical imaging of sediments and sub-seabed structures for dredging purposes, for route and offshore site surveys and to map buried pipelines/cables.

The Innomar paramatric sub-bottom profilers generate the low-frequency sound beam due to non-linear interaction of two high-intensity sound beams at higher frequencies in the water column beneath the transducer. Compared to conventional (linear) sound generation this gives the following advantages:

• Narrow sound beams at low frequencies with small and portable transducers.
• For the same beamwidth the transducer size (area) is typically reduced by a factor of 100, depending on frequencies.
• The half-power beam width is nearly the same for all generated frequencies.
• There are no distinct side lobes for the low-frequent sound beam during transmission, the beam tapers off smoothly. This avoids ambiguities caused by sidelobe-generated spurious signals.
• The high relative bandwidth (80%) results in very short sound pings without significant ringing effects.
• Detection of sediment layers and objects with high resolution.
• Accurate water depth determination due to high-frequent channel of primary frequencies.
• Lower received reverberation levels, resulting in better penetration.

Compared to conventional towed systems there are additional benefits of the hull- or pole-mounted parametric transducers like

• no deployment or recovery of tow fishes,
• better position accuracy,
• higher availability due to increased weather window,
• better survey efficiency due to higher possible survey speed,
• improved vessel manoeuvrability.

Join us for free demos of the NORBIT Winghead multimeam and the INNOMAR compact sub-bottom profiler at Marina da Glória in Rio de Janeiro.

This event is free, please use the link below to register and secure your attendance. Additional details about the agenda and social activities will be shared with participants closer to the event’s date.

Please click HERE to go to the NORBIT event page and to register

Join the INNOMAR experts at the NORBIT stand. There will be also live demos with the INNOMAR compact sub-bottom profiler.

Please use the link below for more details and to register.

Please click HERE to go to the event web page and to register

Looking forward to meeting you at our booth L1 at Ocean Business in Southampton / UK, April 8-10, 2025.

Do not miss our classroom sessions on our new Innomar "essential" SBP -- a new beam-stabilized sub-bottom profiler for small USVs:

• Wednesday, 9th April, 14:30
• Thursday, 10th April, 11:30