What frequency range is characteristic for Deep Sub-Bottom Profiling sonar applications?

Answer

1 kHz to 15 kHz

The required frequency band for an ultrasonic application directly correlates with its primary objective—whether it is short-range precision, medium-range ranging, or deep penetration. Deep Sub-Bottom Profiling, which aims to send sound waves deep into geological structures underwater to analyze subsurface layers, necessitates frequencies that offer maximum penetration capability. To achieve this deep travel and reflection, the associated frequency range is relatively low compared to other uses, typically specified between $1 ext{ kHz}$ and $15 ext{ kHz}$. This contrasts sharply with the high frequencies used in medical imaging ($2 ext{ MHz}$ to $15 ext{ MHz}$) which are optimized for detailed visualization over short distances in soft tissue.

What frequency range is characteristic for Deep Sub-Bottom Profiling sonar applications?

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