首页|Measurement of the acoustic nonlinearity parameter B/A of lossy medium in a focused field
Measurement of the acoustic nonlinearity parameter B/A of lossy medium in a focused field
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NETL
NSTL
An analytical description for the linear and nonlinear acoustic fields in lossy medium of a focussing source is derived. The relationship of pressure amplitudes at focus for fundamental and the second harmonic waves is discussed. At high linear focusing gain G, n new method using the insert substitution method for measuring the acoustic nonlinear parameter B/A of biological tissues is presented. Results for some biological tissues are experimentally obtained.
NETL
NSTL
