Year: 1974
Type: conference-abstract
Abstract: Experimental measurements were made of the secondary source level from a parametric transmitting array under the following conditions: relatively short distance from the transducer to the measuring point, low attenuation of the primary and secondary waves, and primary source level too low for shock formation. The resulting source levels were low compared to predictions based on current farfield theories. A purely geometrical theory has been derived, neglecting absorption and saturation due to shock formation. The theory is successful in two respects: it is in good agreement with the data, and it matches the Berktay-Leahy theory when the distance from the transducer to the measuring point is increased to the absorption distance.
DOI: 10.1121/1.1919612
Authors: James F. Bartram, R. Payson Fugitt
Institution: Raytheon (United States)
Language: English
Subfield: Oceanography
Field: Earth and Planetary Sciences
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W1976830297