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Ultrasonic airborne insertion loss measurements at normal incidence (L)
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10.1121/1.3500682
/content/asa/journal/jasa/128/6/10.1121/1.3500682
http://aip.metastore.ingenta.com/content/asa/journal/jasa/128/6/10.1121/1.3500682

Figures

Image of FIG. 1.
FIG. 1.

Equivalent circuit model for the TL through a panel. The panel is modeled with a T-network waveguide circuit to account for resonances in the thickness of the panel.

Image of FIG. 2.
FIG. 2.

(Color online) Photograph of the experimental set-up in the anechoic chamber with the polycarbonate plastic partition in place and the lowest frequency ultrasonic source. The edges of the partition are outlined to make it more visible to the viewer.

Image of FIG. 3.
FIG. 3.

(Color online) IL vs frequency plots for the three materials tested: (a) Polycarbonate plastic, (b) MDF, and (c) galvanized steel. Measured data are compared to normal-incidence, mass-law TL, and loss predicted by the circuit model (dashed lines). Measurements made with the low, mid, and high frequency sources are denoted by circles, diamonds, and squares, respectively.

Tables

Generic image for table
TABLE I.

Dimensions and parameters of the ultrasonic sources used in this study.

Generic image for table
TABLE II.

Physical dimensions and properties of the partitions tested.

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/content/asa/journal/jasa/128/6/10.1121/1.3500682
2010-12-01
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Ultrasonic airborne insertion loss measurements at normal incidence (L)
http://aip.metastore.ingenta.com/content/asa/journal/jasa/128/6/10.1121/1.3500682
10.1121/1.3500682
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