Accession Number:

ADA255566

Title:

A Comparison of Acoustic Impedance Measurement Techniques

Descriptive Note:

Progress rept.

Corporate Author:

NAVAL UNDERSEA WARFARE CENTER NEWPORT DIV NEW LONDON CT NEW LONDON DETACHMENT

Personal Author(s):

Report Date:

1992-09-01

Pagination or Media Count:

25.0

Abstract:

This report describes an investigation that compares two acoustic impedance measurement techniques. The first is a wave decomposition method that breaks the wave energy into reflected and incident components and then calculates acoustic impedance. The second is an inverse eigenvalue method that inverts the functional form of impedance tube eigenvalues and then calculates acoustic impedance. An experiment comparing the measured acoustic impedance from both methods results in similar values.

Subject Categories:

  • Theoretical Mathematics
  • Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE