## Preliminary investigation of an electrical network model for ultrasonic scatteringJames E. Maisel, Cleveland State University, Lewis Research Center, United States. National Aeronautics and Space Administration. Scientific and Technical Information Office National Aeronautics and Space Administration, Scientific and Technical Information Office, 1984 - Medical - 42 pages |

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### Contents

ACOUSTIC WAVES | 4 |

THE FUNCTIONAL RELATIONSHIP OF 0S WITH RESPECT | 10 |

CALCULATION OF ATTENUATION VERSUS | 22 |

1 other sections not shown

### Common terms and phrases

15 microns acoustic impedance amplitude angular frequency Ap/pQ attenuation depends attenuation profile attenuation versus frequency average separation behavior of attenuation bulk modulus characteristic impedance Cleveland State University correlation spacing cross sectional area cylinder density and bulk determines the attenuation dimension distance due to scattering Electrical Network Model electrical transmission line Equation 1-1 Equation 1-7-a Equation 4-9 ergodic factors and W2 Fourier transform frequency dependent function of frequency host medium isotropic low-loss mass density mean square deviation Model for Ultrasonic normalized mean square Np(r plane wave propagation constant proportional quency random process Rayleigh Results indicate scattered pressure wave scattered wave scattering amplitude scattering angle scattering cross section scattering density scattering site density second term shift per unit shown in Figure shunt conductance solid spatial correlation function spatial ensemble specimen transmission line model unit admittance unit length value of attenuation variance velocity of propagation wave propagating wavelength Young's modulus