DETERMINATION OF FLAW GEOMETRY BY ULTRASONIC PULSE CONTOUR AND SPECTRUM ANALYSIS

Abstract

The report describes the application of ultrasonic pulses of almost rectangular envelope to pulse-echo testing, resulting in the simultaneous transmission of a wide band of ultrasonic frequencies. In comparison to the essentially monochromatic ultrasound used in conventional test systems, this method permits the derivation of additional information from the test, obtained in the form of the spectral energy distribution after reflection from the defect. Besides determining the location of a flaw, it is now possible to gather data representing the flaw geometry. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1961
Accession Number
AD0262202

Entities

People

  • John J. Maguire

Tags

DTIC Thesaurus Topics

  • Audio Frequency
  • Doppler Effect
  • Frequency
  • Frequency Shift
  • Geometry
  • Reflection
  • Spectra
  • Spectral Energy Distribution
  • Spectrum Analysis
  • Ultrasonic Frequencies
  • Ultrasounds

Fields of Study

  • Physics

Readers

  • Radar Systems Engineering.
  • Structural Health Monitoring of Composite Structures.