For the geological survey of the seabed, we use the parametric geological structural depth gauge
Innomar SES-2000 light (eng. sub-bottom profiler, SBP). The SBP consists of a main unit (transceiver)
located on the ship and a transmitter (transducer) attached to an aluminum support on the side of the ship
and partially located below sea level. Geological depth sounder makes it possible to make acoustic profiles
through the sediments of the sea, which makes visible layers of various sediments or objects on the surface
or below it.
During underwater recording, two low frequencies (6 and 10 kHz) are mainly used. By using a parametric
geological depth gauge, i.e. by combining low frequencies, a high frequency is obtained, where a
lower frequency enables better penetration into the subsurface, while a higher one gives a better
bathymetric reflection.
This device was purchased using a financial instrument: ESIF Small investment loan through
the Croatian Agency for Small Business, Innovation and Investments (HAMAG-BICRO).