Measurement of the space-time correlation function of thermal acoustic radiation |
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| Authors: | V I Passechnik A A Anosov Yu N Barabanenkov A G Sel’sky |
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| Institution: | (1) ELDIS Research Center, Institute of Radio Engineering and Electronics, Russian Academy of Sciences, Starosadskii per. 8, Moscow, 101000, Russia;(2) Sechenov Medical Academy, Moscow, Russia |
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| Abstract: | The space-time correlation function of thermal acoustic radiation pressure is measured for a stationary heated source (a narrow plasticine plate). The correlation dependence is obtained by the multiplication of two signals shifted in time with respect to each other and measured by two receivers. The dependence exhibits an oscillating behavior and changes sign when the source is displaced by half the spatial period of the correlation function. |
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