Innomar "medium-100" Sub-Bottom Profiler

Innomar "medium-100" SBP

Innomar "medium-100" SBP

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.

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 from rather shallow water in the North Sea (pulse 8kHz / 250µs; depth range 35–60m)

Technical Specification

Water Depth Range
2 – 2,000 m below transducer
Sediment Penetration
up to 70 m (depending on sediment type and noise)
Sample / Range Resolution
<1 cm / up to 5 cm (depending on pulse settings)
Transmit Beam Width (-3dB)
c. ±1° for all frequencies / footprint c. 3.5% of water depth
Ping Rate
up to 40 Hz (pings/s)
Heave / Roll / Pitch Compensation
heave + roll (depending on external sensor data)
Primary Frequencies (PHF)
c. 100 kHz (frequency band 85 – 115 kHz)
PHF Source Level / Acoustic Power
>247 dB//µPa re 1m / c. 5.5 kW
Secondary Low Frequency (SLF)
centre frequency user selectable: 4, 5, 6, 8, 10, 12, 15 kHz
SLF Total Frequency Band
2 – 22 kHz
SLF Pulse Type
Ricker, CW, LFM Chirp
Pulse Width
user selectable 0.07 – 1.0 ms (CW); 3.5 ms (chirp)
Data Acquisition and Recording
digital 24 bit / 96 kHz (SLF full waveform, PHF envelope)
Data File Format
Innomar "SES3" (24 bit), "SEGY" (via SESconvert)
External Sensor Interfaces
HRP (motion), GNSS position, depth (all RS232 / UDP), trigger (BNC)
Bottom Detection
internal (PHF and SLF data) or external depth
Depth Accuracy
(2 cm @ 100 kHz / 4 cm @ 10 kHz) + 0.02% of water depth
Remote Control / Survey Integration
KVM / basic functions via COM or Ethernet (UDP), NMEA
Topside Unit (Transceiver)
W 52 cm × D 40 cm × H 44 cm (19'' / 9U) / weight c. 44 kg
W 50 cm × D 50 cm × H 12 cm / weight c. 60 kg (incl. 30 m cable)
Transducer Depth Rating
Power Supply
100–240 V AC
Power Consumption
Control / Data Storage PC
integrated PC (MS Windows 10/11 OS) with 10'' TFT display
First / Latest Product Generation
2004 / 2020

Included Features

  • Heave / Roll beam stabilization
  • 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)
  • SESWIN basic remote-control via COM / UDP (e.g. line start/stop, line name)

Optional Features

  • KVM extender for remote control
  • SESWIN extended remote-control via Ethernet (all survey settings)
  • Rugged housing with shock absorbers (MIL standard, IP65 when closed)
  • 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 online data and system information display on remote computers
  • ISE post-processing software (optional)

Technical specifications are subject of change without notice.