Innomar "medium-70" Sub-Bottom Profiler

Innomar "medium-70" SBP

Innomar "medium-70" SBP

The Innomar "medium-70" parametric sub-bottom profiler is designed for offshore applications down to 2,500m water depth.

This model is available in two versions. The basic version features heave and roll compensation while the "RP" version offers additional pitch compensation.

The Innomar "medium-70" SBP acquires full-waveform data 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 2012 ("SES-2000 medium-70"), while the latest generation has been launched in 2021.

Innomar "medium-70" SBP data example from the Norwegian Trench (pulse 10kHz / 500µs; depth range 330–480m)

Technical Specification

Water Depth Range
5 – 2,500 m below transducer
Sediment Penetration
up to 100 m (depending on sediment type and noise)
Sample / Range Resolution
<1 cm / up to 7 cm (depending on pulse settings)
Transmit Beam Width (-3dB)
c. ±1.5° for all frequencies / footprint c. 5.5% of water depth
Ping Rate
up to 40 pings/s
Heave / Roll / Pitch Compensation
heave + roll + optional pitch (depending on external sensor data)
Primary Frequencies (PHF)
c. 70 kHz (frequency band 60 – 80 kHz)
PHF Source Level / Acoustic Power
>246 dB//µPa re 1m / c. 7.5 kW
Secondary Low Frequency (SLF)
centre frequency user selectable: 3, 4, 5, 6, 8, 10, 12 kHz
SLF Total Frequency Band
1.5 – 15 kHz
SLF Pulse Type
Ricker, CW, LFM Chirp
Pulse Width
user selectable 0.1 – 1.0 ms (CW); 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
(2.5cm @ 70 kHz / 5 cm @ 8 kHz) + 0.04% 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 44/63 cm (19'' / 9/13U) / weight c. 52/63 kg
Transducer (incl. 30 m cable)
W 60 cm × D 60 cm × H 25 cm / weight c. 140 kg (excl. cable)
Transducer Depth Rating
Power Supply
100–240 V AC
Power Consumption
Control / Data Storage PC
integrated PC (MS Windows 10/11 OS)
First / Latest Product Generation
2012 / 2021

Included Features

  • Heave / 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 (3 – 12 kHz)
  • KVM extender for remote control
  • SESWIN basic remote-control via COM / UDP (e.g. line start/stop, line name)
  • Transducer frame with integrated shock absorbers for hull-mounting

Optional Features

  • SESWIN extended remote-control via Ethernet (TCP/IP)
  • Pitch beam stabilization
  • internal 10'' TFT display
  • Bottom slope control


  • 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

Technical specifications are subject of change without notice.