Signal Processing Fault Detection System

Abstract

A fault detection system designed to evaluate the structural integrity of a material employs an array of sensors disposed over the material being evaluated. The sensors detect vibrations in the material and the sensor signals are fed to a data processor. The processor employs a method to analyze the linear and nonlinear characteristics of the sensor signals and then determines whether to proceed with a linear signal processing analysis or a nonlinear signal processing analysis of the sensor signals. Once the analysis is completed, the results are compared to baseline results to determine what if any divergence exists between the results and the baseline results. A significant divergence indicates a potential material failure. The fault detection system will indicate such a potential failure through a visual alarm on a graphical user interface.

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Document Details

Document Type
Technical Report
Publication Date
Jul 13, 2007
Accession Number
ADA470302

Entities

People

  • Derke R. Hughes

Organizations

  • United States Department of the Navy

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Actuators
  • Cantilever Beams
  • Computers
  • Data Sets
  • Detection
  • Detectors
  • Frequency
  • Graphical User Interface
  • Helicopters
  • Materials
  • Mathematical Analysis
  • Nonlinear Analysis
  • Random Variables
  • Signal Processing
  • Transmittance
  • User Interface
  • Wavelet Transforms

Fields of Study

  • Engineering

Readers

  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Inertial Navigation Systems.
  • Structural Health Monitoring of Composite Structures.