Propose – rapid evaluation of non linear ultrasound propagation

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Presentation transcript:

Propose – rapid evaluation of non linear ultrasound propagation Quasi linear approximation (moderate pressure), p = p1+p2 Solve the two equations with k space approach, utilizing the Fraunhofer approximation of linear field in focal plane for a focused transducer

Comparison, propose, reference method and measurement Pulse in focus Rectangular aperture at 2.5MHz

Comparison propose and reference method Upper fundamental Lower 2.harmonic Propose, Upper fundamental Lower 2.harmonic

Quasi-linear approximation, KZK equation, Measurements.

Energy loss