Performance of the parametric receiving array : effects of misalignment

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1987-11
Authors
Foote, Kenneth G.
Tjøtta, Jacqueline Naze
Tjøtta, Sigve
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DOI
10.1121/1.395168
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Keywords
Performance
Acoustic transducers
Arrays
Sound fields
Alignment
Hydrophones
Abstract
The difference frequency sound field from two concentric but misaligned, axisymmetric, planar transducers in a nondissipative and nondispersive medium is developed as a special case of the general theory [Garrett et al., J. Acoust. Soc. Am. 75, 769–779 (1984)]. Effects of misalignment of pump, source, and hydrophone on the performance of the parametric receiving array are quantified in numerical examples. These include the effect of interaction in the nearfields of both pump and source transducers. The results show that the best performance is obtained for good alignment, high pump frequency, and placement of the hydrophone within or not far from the source nearfield.
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Author Posting. © Acoustical Society of America, 1987. This article is posted here by permission of Acoustical Society of America for personal use, not for redistribution. The definitive version was published in Journal of the Acoustical Society of America 82 (1987): 1753-1757, doi:10.1121/1.395168.
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Journal of the Acoustical Society of America 82 (1987): 1753-1757
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