Accession Number : ADA017004

Title :   Amplitude Distribution Analysis of Acoustic Emission Signals.

Descriptive Note : Technical rept.,

Corporate Author : CALIFORNIA UNIV LOS ANGELES SCHOOL OF ENGINEERING AND APPLIED SCIENCE

Personal Author(s) : Ono,Kanji

Report Date : AUG 1975

Pagination or Media Count : 26

Abstract : Acoustic emission signal characterization via amplitude distribution analysis is discussed from theoretical and experimental viewpoints. Fundamental amplitude distribution characteristics of continuous- and burst-type acoustic emission signals are derived and compared with experiment. Regardless of the signal bandwidth, continuous-type signals exhibit the Rayleigh-type peak distribution. Relationship between the amplitude distribution of acoustic emission counts and the peak distribution of burst signals is discussed, considering three model peak distribution functions. Proposed in this paper are new calibration method of acoustic emission instrumentation and a means to separate the contributions of continuous- and burst-type acoustic emission signals.

Descriptors :   *Acoustic emissions, *Signal processing, White noise, Nondestructive testing, Probability density functions, Statistical analysis

Subject Categories : Test Facilities, Equipment and Methods
      Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE