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B I Goncharenko V A Gordienko (2012)
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A N Matveev A E Isaev (2010)
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A N Matveev A E Isaev (2009)
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Abstract Absolute complex free-field calibration of a pressure gradient receiver is considered. The calibration is carried out in a reflecting water tank using the reciprocity method procedure during radiation of continuous signals with linear free-field frequency modulation. To obtain the free-field frequency dependences, complex moving weighted averaging is used. It is shown that this method, developed for calibration of sound pressure receivers, allows effective recovery and measurement of the vector component of a direct acoustic wave in the presence of reflections. The method makes it possible to measure the modulus and phase angle of the complex sensitivity and reveal the insufficiencies of an experimental pressure gradient receiver.
Acoustical Physics – Springer Journals
Published: Jan 1, 2014
Keywords: Acoustics
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