Innomar's R&D is co-funded by the European Union (European Regional Development Fund)



Innomar "medium-100" Sub-Bottom Profiler

Innomar medium-100 parametric sub-bottom profiler (top side unit and pole-mount transducer)

The Innomar medium-100 parametric sub-bottom profiler is designed for offshore applications down to 2,000m water depth. The transducer can be either mounted over-the-side or in the hull.

The Innomar medium-100 SBP acquires full-waveform data (24 bit) that can be processed with any seismic software (SEG-Y format). Innomar also provides the ISE post-processing software specialized on the Innomar SBP data.

Application examples are given in the Deep Water Applications section.

The first generation of this SBP model was introduced in 2004 ("SES-2000 medium"), while the latest generation has been launched in 2020.


Innomar medium-100 SBP data example
Innomar medium-100 SBP data example in shallow water
(range 35–60m; Northsea sand area; frequency 8kHz).

Innomar medium-100 SBP data example
Innomar medium-100 SBP data example in deep water; two data snippets zoomed in
(range 1720–1860m; water depth c. 1800m; frequency 5kHz).

Please find some installation and data examples below (click on picture to enlarge).

pole-mounted transducer pole-mounted transducer pole-mounted transducer hull-mounted transducer buried cable data example data example data example


Technical Specification

Water Depth Range 2 – 2,000 m
Sediment Penetration up to 70 m (depending on sediment type and noise)
Range / Layer Resolution approx. 1 cm / up to 5 cm
Transmit Beam Width (-3dB) approx. ±1° / footprint <3.5% of water depth
Primary Frequencies (PF) approx. 100 kHz (frequency band 85 – 115 kHz)
PF Source Level / Acoustic Power >247 dB//µPa re 1m / ~5.5 kW
Secondary Low Frequency (SLF) centre freq. user selectable: 3.5, 5, 6, 8, 10, 12, 15 kHz
(total frequency band 2 – 22 kHz)
Pulse Width user selectable 0.07 – 3.5 ms
Pulse Type Ricker, CW, LFM chirp
Ping Rate up to 50 pings/s
Topside Unit (Transceiver) W 0.52m × D 0.40m × H 0.44m (19''/9U) / 44kg
Transducer (incl. 30m cable) pole-mounted: W 0.50m × D 0.50m × H 0.12m / 60kg
hull-mounted:   W 0.60m × D 0.50m × H 0.20m / 90kg
Heave / Roll / Pitch Compensation heave, roll (depending on external sensor data)
Data Acquisition digital 24 bit @ 96 kHz sample rate;
PF 100 kHz envelope echosounder data / bottom track;
SLF full-waveform sub-bottom data
Auxiliary Input GNSS, HRP sensor, trigger
Auxiliary Output trigger, bottom track, analogue SLF
Power Supply 100–240 V AC / <400 W
Control / Data Storage PC internal PC (Windows® 10); included


Included Features

  • Roll beam stabilization
  • SLF full waveform data acquisition (sub-bottom data) / Innomar "RAW" data format
  • 24 bit SLF full waveform data acquisition / Innomar "SES3" data format
  • Multi-ping mode for maintaining a high pulse rate in deep waters
  • Multi-frequency signals
  • LFM chirp (5 – 15 kHz)
  • KVM extender for remote control
  • SESWIN basic remote-control via COM / UDP (e.g. line start/stop, line name)


Optional Features

  • SESWIN extended remote-control via Ethernet (TCP/IP)
  • Rugged housing with shock absorbers (MIL standard, IP65)
  • Transducer frame with integrated shock absorbers for hull-mounting



  • SESWIN data acquisition software
  • SES Convert data converter software (RAW to SEG-Y, XTF, ASCII)
  • SES NetView for display of online echoprints and system information on remote computers (via Ethernet) for QC
  • ISE post-processing software


Technical specifications are subject of change without notice.