Abstract
This paper describes two methods which are used in GERDSM to calibrate low frequency transducers. The first technique is based on cross correlation functions. The feasibility of the technique has been demonstrated for transducers with low quality factor Q and its extension to projectors with high quality factor Q is described. A second method which reduces the transient part of the acoustic pressure by controlling the headmass velocity of the transmitting transducer has been tested successfully on actual projectors.
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Reference
E. Kasiwagi, “FM signal-correlation for underwater acoustic measurement,” Acustica, 37, (1977).
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© 1991 Springer-Verlag Berlin Heidelberg
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Giangreco, C., Faure, S., Rossetto, J.F. (1991). Measurement Methods for Low-Frequency Transducers. In: Hamonic, B.F., Decarpigny, JN., Wilson, O.B. (eds) Power Transducers for Sonics and Ultrasonics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-76271-0_19
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DOI: https://doi.org/10.1007/978-3-642-76271-0_19
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-76273-4
Online ISBN: 978-3-642-76271-0
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