Accession Number : ADD011556

Title :   Method and Apparatus for Detecting Acoustic Emissions from Metal Matrix Wire.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Hawkins,G F

Report Date : 11 Dec 1984

Pagination or Media Count : 5

Abstract : Apparatus for detecting acoustic emissions from metal matrix wire allows on-line measurement of the transverse strength of the wire as it is moving through its manufacturing process. A series of end and middle rollers guide the wire and form a bend in it. The location of the bend in the wire is maintained in contact with a liquid bath which, in turn, is contacted by the sensing surface of an acoustic transducer. Acoustic emissions from breaking of the fiber-matrix interface of the wire are transmitted by the bath and detected by the transducer. (Author)

Descriptors :   *Patents, *Acoustic emissions, *Acoustic detection, *Electroacoustic transducers, *Wire, Acoustic detectors, Matrix materials, Fibers, Interfaces, Manufacturing, Transverse, Strength(General)

Subject Categories : Electrical and Electronic Equipment
      Acoustic Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE