Survey

Innomar medium-70: Parametric Sub-Bottom Profiler

Extended Penetration & Resolution for Depths up to 2,500 Meters

Product Overview The Innomar medium-70 is a high-performance parametric sub-bottom profiler designed for offshore surveys where greater penetration is required than standard shallow-water systems can provide. Operating with a primary frequency of 70 kHz, this system offers an optimal balance between high resolution and deep sediment penetration, capable of reaching water depths of 2,500 meters.

Distinct from the "medium-100" model, the medium-70 utilizes lower frequencies to achieve deeper seabed penetration (up to 100 meters) while maintaining a highly focused sound beam. This makes it the ideal solution for geohazard surveys, stratigraphy mapping, and pipeline routing in continental shelf and slope areas where accuracy and depth capability are paramount.

Why Choose the Innomar medium-70?

  • Extended Penetration: Penetrates up to 100 meters into the seabed, outperforming higher-frequency models in difficult sediments.
  • Focused Acoustics: Generates a narrow 3° beam width (±1.5°) for all low frequencies, ensuring high lateral resolution and artifact-free data even in deep waters.
  • Operational Stability: Includes active electronic beam stabilization (Heave/Roll/Pitch) to compensate for vessel motion, delivering clear images in rough offshore conditions.

SpecificationDetails
Depth Range5 m – 2,500 m
Sediment PenetrationUp to 100 m (sediment dependent)
Range Resolution< 1 cm (sample) / up to 7 cm (layer)
Depth Accuracy2.5 cm + 0.04% of water depth
Primary Frequency (HF)~70 kHz
Secondary Frequency (LF)3 – 12 kHz (User Selectable)
Beam Widthapprox. 3.0° (±1.5°) for all frequencies
Source Level> 246 dB // µPa re 1m
Acoustic Power~ 7.5 kW
Pulse TypesRicker, CW, FM Chirp
Motion CompensationHeave, Roll, Pitch (Beam forming)
Data FormatInnomar RAW (24-bit full waveform), SEG-Y, XTF
Topside Unit19-inch / 9U (W 52cm × D 40cm × H 44cm)
Transducer DimensionsW 60 cm × D 60 cm × H 25 cm
Transducer Weightapprox. 140 kg (excluding cables)
  • Mid-to-Deep Capability: Operational range from 5 meters to 2,500 meters.
  • Parametric Technology: Uses a ~70 kHz carrier to generate selectable low frequencies (3 – 12 kHz), avoiding the side-lobes common in linear systems.
  • High-Density Data: Supports Multi-Ping Mode (burst pulsing) up to 50 pings/second, crucial for maintaining resolution when surveying in deeper waters.
  • Full Waveform Data: Records raw full-waveform data (24-bit) for advanced post-processing.
  • Interference Reduction: The 70 kHz primary frequency is less likely to interfere with standard 100 kHz multibeam echosounders running simultaneously.
  • Versatile Pulse Types: Switch between CW, Ricker, and FM Chirp pulses to adapt to varying sediment types and survey requirements.
  • 1768273071__medium-70_ SBP - Innomar.pdf

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