Electromagnetic Sensor Arrays for Nondestructive Evaluation and Robot Control.

Abstract

The objective of this research program is to develop the theoretical models, design methodology, and technology needed for optimum application of near field electromagnetic sensor arrays in nondestructive evaluation (NDE) and robot control. To aid in understanding how best to analyze and control the spatial-frequency content in the field configuration generated by an array, most of this year's effort focused on obtaining experimental measurements of the relative spatial distributions defined by the responses of inductive eddy current reflection probes to surface steps and surface breaking rectangular slots in aluminum plates. In particular, a commercial reflection probe (Nortec SPO-2065) and an SRI-constructed, five coil, air core reflection probe have been used to interrogate such surface discontinuities. The data obtained using the five coil probe compare favorably with the results of the developed theory.

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Document Details

Document Type
Technical Report
Publication Date
Oct 31, 1985
Accession Number
ADA171128

Entities

People

  • A. J. Bahr
  • A. Rosengreen

Organizations

  • SRI International

Tags

Communities of Interest

  • Advanced Electronics
  • Sensors

DTIC Thesaurus Topics

  • Aluminum
  • Data Processing
  • Detection
  • Detectors
  • Elements
  • Fabrication
  • Frequency
  • Magnetic Detectors
  • Magnetic Fields
  • Magnetic Films
  • Magnetic Materials
  • Materials
  • Materials Science
  • Measurement
  • Probes
  • Thin Films
  • Vector Magnetometers

Fields of Study

  • Physics

Readers

  • Optical Fiber Sensing and Electromagnetic Propagation.
  • Plasma Physics / Magnetohydrodynamics
  • Structural Health Monitoring of Composite Structures.

Technology Areas

  • AI & ML
  • AI & ML - Bayesian Inference
  • Autonomy