Parametric Sub-Bottom Profiler
General & Applications
• First / latest product generation: 2017 / 2024
• Small boats and vehicles, in- and near shore
• Integration into USV and ASV of all scales
• Remotely controlled and automomous operation
Performance
• Water depth range: 0.5 ‒ 100 m
• Seabed penetration: up to 20 m (depending on seabed type and noise)
• Range resolution: up to 8 cm (depending on pulse settings)
• Depth accuracy: 2.5 cm + 0.1% water depth
• Motion compensation: Heave (external sensor data required)
Transmitter
• Principle: parametric (nonlinear) acoustics
• Frequencies: 100 kHz (HF) / 10 kHz (LF)
• Primary Source Level: >235 dB//μPa re 1m
• Acoustic Power: c. 2 kW
• Beam width: c. 5° (±2.5°) for all frequencies
• Pulse type: CW, Ricker
• Pulse width: 0.07 ‒ 0.5 ms
• Pulse rate: up to 40 Hz
Data Acquisition
• Digital, 2 channels (LF and HF, “RAW” format)
• Sample rate c. 70 kHz @ 16 bit; resolution <2 cm
• LF sub-bottom data: raw (full-waveform)
• HF data: processed (envelope)
