Accession Number : ADD016574

Title :   Method and System of Mapping Acoustic Near Field.

Descriptive Note : Patent, Filed 11 Aug 93, patented 13 Sep 94,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Clark, Joseph A ; Sartori, Michael A

Report Date : 13 Sep 1994

Pagination or Media Count : 10

Abstract : A method and system for mapping the acoustic near field of a stationary axial symmetric structure are provided. The structure is subjected to a rotating excitation energy profile from a plurality of stationary excitation sites located radially around the structure. The acoustic near field of the structure due to the rotating excitation energy profile is measured along at least one line that conforms to a longitudinal surface of the structure. Mapping of the acoustic near field is complete when one rotation of the rotating excitation energy profile is complete.

Descriptors :   *NEAR FIELD, *PATENTS, *ACOUSTIC FIELDS, ENERGY, EXCITATION, MAPPING, PROFILES, ROTATION, STRUCTURES, SURFACES, SIGNAL PROCESSING, ACOUSTIC WAVES, AXISYMMETRIC, TRANSVERSE WAVES, ACOUSTIC ARRAYS

Subject Categories : Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE