Transducers and Arrays for Underwater Sound by John L. Butler & Charles H. Sherman

Transducers and Arrays for Underwater Sound by John L. Butler & Charles H. Sherman

Author:John L. Butler & Charles H. Sherman
Language: eng
Format: epub
Publisher: Springer International Publishing, Cham


6.2.***Determine the receiving response through the antiresonance of the ring hydrophone of Exercise 6.1. Assume equivalent sphere radiation loading and spherical diffraction constant. Calculate the electrical impedance and use reciprocity to determine the TVR. Compare with the TVR obtained directly in Exercise 6.4.

6.3.***Consider two small ring Type I hydrophones one-tenth the size of the one in Exercise 6.1 and separated by 5.08 cm (2 in.). First, calculate antiresonance and the low frequency RVS value for each alone. Are these results scalable from the results of Exercise 6.1? Next, determine the low frequency summed sensitivity and the low frequency differenced sensitivity for a plane wave incident in the axial direction. Calculate the frequency at which you would expect this vector sensor to differ from an expected cosine beam pattern. Calculate the frequencies at which the summed and differenced modes yield a null in the axial direction.



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