Parametric sub-bottom profiler

TOPAS PS40 is a parametric sub-bottom profiler system for medium ocean depths.


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 PS40 comes in 2 different configurations:

PS40 standard

PS40 modular with pitch stabilization

TOPAS operator software software on the Hydrographic Work Station (HWS)

Key features

  • Primary source level: >240 dB
  • Source level @4 kHz: 197 dB
  • Primary frequency range: 35-45 kHz Parametric freq.: 1-10 kHz
  • Beam width: ±1.5x2.5°
  • Operational depths: <5 - >2000 m


Data sheet

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