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- W2083029707 abstract "The acoustic energy produced by small appliances often originates at one point within the device (e.g., an electric motor) but actually radiates from a number of points on the casing. It is useful to identify these surface sources since they may indicate internal energy transmission paths; however, the task is made difficult by the fact that they are inevitably correlated and are often closely spaced. Recently the newly developed Brüel & Kjaer spatial transformation of sound fields (STSF) system was used to identify sources in this situation. This system is a broadband adaptation of the acoustical holography technique; it makes use of sound-pressure measurements at a number of reference locations and at an array of field points to identify the wavenumber components of the field. These may be used to reconstruct the entire sound field exterior to a plane tangent with the source. By examining intensity maps on orthogonal planes near the source, closely spaced individual surface sources may be identified. The application of this technique to a complete noise control procedure will be illustrated in this paper." @default.
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- W2083029707 date "1987-05-01" @default.
- W2083029707 modified "2023-09-27" @default.
- W2083029707 title "Application of the STSF system to noise source identification in domestic appliances" @default.
- W2083029707 doi "https://doi.org/10.1121/1.2024256" @default.
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