The Directivity Index of a sonar array depends on all of the following except: (a) The...
The Directivity Index of a sonar array depends on all of the following except: (a) The physical dimensions of the array. (b) The speed of sound in the water. (c) The layout of the hydrophones in the array. (d) The efficiency of the array.
Homework Answers
DI for SONAR = 10 log (2L/) dB
Where L = Length of array , =
wavelength
Directivity Index of an array varies as a function of wavelength of incident sound(hence speed of sound in water) , Layout and physical dimensions of the array. Measurement of the directivity index is required in order to obtain the efficiency of a transducer.
Hence option (D) is the correct answer.
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