Determination of parameters of elastic spherical shell from scattered wave field
Abstract
This study investigates the possibility of constructing a structurally simple algorithm for determining the parameters of an elastic spherical shell in a liquid that uses the space-frequency processing of the field scattered by the shell. The characteristics of the surrounding medium are assumed to be known. A plane harmonic wave is incident on the shell; the space-frequency distribution of the field scattered by the shell is measured. The proposed algorithm is modeled on an ES1022 computer for a water-filled aluminum shell with h/R = 0.02. Investigations indicate that registering the field on a spherical surface concentric with the spherical shell is most effective in terms of measurement error.
- Publication:
-
USSR Rept Phys Math JPRS UPM
- Pub Date:
- August 1985
- Bibcode:
- 1985RpPhM........2S
- Keywords:
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- Algorithms;
- Electrical Properties;
- Frequency Distribution;
- Spherical Shells;
- Wave Scattering;
- Aluminum;
- Errors;
- Parameter Identification;
- Acoustics