Accession Number:

ADA083554

Title:

A Nearfield Model of the Parametric Radiator.

Descriptive Note:

Technical memo.,

Corporate Author:

NAVAL UNDERWATER SYSTEMS CENTER NEW LONDON CT NEW LONDON LAB

Personal Author(s):

Report Date:

1975-12-31

Pagination or Media Count:

19.0

Abstract:

It is often necessary to measure and operate parametric radiators under conditions where finite range effects are important. A nearfield model is presented in which the source level is obtained by assuming the primary waves to be plane-cylindrical or diverging-conical depending upon whether the observation range is less or greater than the Rayleigh distance. Asymptotic beam patterns are obtained from the solution of an exponentially tapered line array. Nonlinear attenuation is not considered. Author

Subject Categories:

  • Acoustic Detection and Detectors
  • Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE