Parametric sub-bottom profiler

TOPAS PS120 is a parametric sub-bottom profiler system for shallow waters.


The idea of a parametric sub-bottom system is to use higher frequencies to generate the low frequencies that you need for sub-bottom profiling. The parametric conversion is a physical process that happens in the water when two signals with high SL is transmitted, the low frequency differential signal – or the parametric signal is created. A benefit of this principle is that you can do high performance sub-bottom profiling with smaller transducer arrays.


TOPAS PS120 comes in 2 different configurations:

PS120 standard

PS120 for rack mounting

Hydrographic Work Station or laptop

Key features

  • Primary source level: 238 dB
  • Source level @4 kHz: 186 dB
  • Primary frequency range: 70-100 kHz
  • Parametric freq.: 2-30 kHz
  • Beam width: ±1.5x2°
  • Operational depths: 2 - >500m


Data sheet

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