Autor:	Robert H. Mellen, William L. Konrad, David G. Browning
Rok vydání:	1971
Předmět:	Physics Beamwidth Acoustics and Ultrasonics Arts and Humanities (miscellaneous) Acoustics Saturation (chemistry) Sonar Beam (structure) Parametric statistics Secondary source
Zdroj:	The Journal of the Acoustical Society of America. 49:932-935
ISSN:	0001-4966
DOI:	10.1121/1.1912438
Popis:	Experimental measurements of intensities and beam patterns of a parametric sonar transmitting array are presented. For a mean primary frequency of 720 kHz, secondary source levels up to 90 dB//1 μbar at 1 m were attained at 50 kHz. At this level, however, saturation effects broaden the beamwidth to 8° compared to the unsaturated value of 3°.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::77dbdc061a25a61b20939971022b4033 https://doi.org/10.1121/1.1912438 Zobrazit plný text záznamu