15.3.2. A 30 kHz sonar transducer produces an axial sound pressure level of 140 dB re1 μPa at a distance of 1000 m in seawater. Assume spherical spreading and losses.(a) What is the axial pressure level at 1 km? (b) At 2000 m? (c) At what distance willthe axial pressure level be reduced to 100 dB? (d) At what distance will TL(geom)equal TL(losses)? (e) At what distance is the rate of transmission loss associated withspherical divergence equal to that associated with absorption?

Since the absorption coefficient is typically given in dB per meter, the constant term in this…

Answered: 15.3.2. A 30 kHz sonar transducer…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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