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Accession Number:
ADA067034
Title:
Nearfield and Farfield Results with Inoperative Staves and a Sonar Dome for the AN/SQS-26
Corporate Author:
TRACOR INC AUSTIN TX
Report Date:
1967-03-06
Abstract:
This memorandum presents some computed results of the effects of inoperative staves in the presence of a dome on the nearfield and farfield patterns of the ANSQS-26. Self and mutual stave impedances are given. The results are obtained from equations describing a two-dimensional model composed of a cylindrical baffle transducer with radiating strips staves enclosed in a thin, concentric shell dome. The results show that for both the Track and Bottom Bounce Beams the dome increases the peak pressure in the nearfield as compared to that of a bare transducer. The inoperative staves produce additional non-uniformity of intensity across the major lobe in the farfield pattern of the Bottom Bounce 45 deg Beam. The dome increases the level of the side lobe structure, further degrading the farfield pattern. The dome causes an increase in the magnitude of most stave impedance but reduces the real part of self impedance.
Descriptive Note:
Technical memo.,
Pages:
0039
Distribution Statement:
Approved for public release; distribution is unlimited.
Contract Number:
NOBSR-95149
File Size:
1.31MB
