Accession Number : AD0782351

Title :   Coefficients for Calculating Radiation Impedances and Far-Field Pressures of Free-Flooded Ring Transducers.

Descriptive Note : Interim rept.,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s) : Rogers,Peter H. ; Zalesak,Joseph F.

Report Date : 14 JUN 1974

Pagination or Media Count : 128

Abstract : Tables of coefficients for determining the radiation impedance and far-field pressure of a free-flooded vibrating ring in an arbitrary medium at 45 frequencies for each of 36 ring geometries were produced. The only restriction on the known velocity distribution for using the tables is that the inside, top and bottom, and outside normal surface velocities must be uniform. Simple formulas for determining the normal surface velocity distribution for some special cases and formulas for determining the radiation resistance and far-field pressure in the low-frequency limit were developed. (Author)

Descriptors :   *Transducers, Far field, Pressure, Electromagnetic radiation, Acoustic impedance, Computer programs

Subject Categories : Electrical and Electronic Equipment
      Acoustic Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE