Innomar "compact-usv" Sub-Bottom Profiler

Photo of the Innomar "compact-usv" parameteric sub-bottom profiler for USV integration.

Innomar "compact-usv" SBP

The Innomar "compact-usv" model is intended to be used on uncrewed surface vehicles (USV / ASV).

The high ping rate, a small footprint and the possibility of transmitting sound pulses over a wide frequency range ensure sub-bottom data with excellent resolution and very good sediment penetration.

A user-friendly Windows data acquisition and system control software (SESWIN) is used for remote (Ethernet) operation. The Innomar "compact-usv" model 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.

This model has been launched in 2024.

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Innomar "compact" SBP data example from Gambia (pulse 10kHz / 200µs; depth range 1–16m)

Technical Specification

Water Depth Range
0.5 – 400 m below transducer
Sediment Penetration
up to 40 m (depending on sediment type and noise)
Sample / Range Resolution
c. 1 cm / up to 5 cm (depending on pulse settings)
Transmit Beam Width (-3dB)
c. ±2° for all frequencies / footprint c. 7% of water depth
Ping Rate
up to 40 Hz (pings/s)
Heave / Roll / Pitch Compensation
heave (depending on external sensor data)
Primary Frequencies (PHF)
c. 100 kHz (frequency band 85 – 115 kHz)
PHF Source Level / Acoustic Power
>238 dB//µPa re 1m / c. 3.5 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)
Data Acquisition and Recording
digital 16 bit / c. 70 kHz (SLF full waveform, PHF envelope)
Data File Format
Innomar "RAW" (16 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
(2.5 cm @ 100 kHz / 5 cm @ 10 kHz) + 0.06% of water depth
Remote Control / Survey Integration
KVM / basic functions via COM or Ethernet (UDP), NMEA
Topside Unit (Transceiver)
W 24 cm × D 36 cm × H 14 cm (1/2 19'' / 3U) / weight c. 6 kg
W 34 cm × D 26 cm × H 8 cm / weight c. 9 kg (excl. cable)
Transducer Depth Rating
Power Supply
24 (20–30) V DC; external AC power adapter (100–240 V AC)
Power Consumption
Control / Data Storage PC
external PC (MS Windows 10/11 OS)
First / Latest Product Generation
2024 / 2024

Included Features

  • Heave compensation
  • 16-bit SLF full waveform data acquisition (sub-bottom data) / Innomar "RAW" data format
  • Multi-ping mode for maintaining a high pulse rate in deep waters
  • Multi-frequency signals
  • SESWIN basic remote-control via COM / UDP (e.g. line start/stop, line name)
  • external AC power adapter (100–240 V AC)

Optional Features

  • SESWIN extended remote-control via Ethernet (all survey settings)
  • Transducer shock absorbers
  • 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)


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Technical specifications are subject of change without notice.