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Research Article Open access CC BY 3.0

DopIer Radar in Crack Testing

Vladimir Sutorichin, Sergei Brichkov

Current Journal of Applied Science and Technology · pp. 3315–3321 · Published 13 Jun 2014

10.9734/BJAST/2014/10159

Abstract

A unique phenomenon in physics has been revealed. Due to internal mechanical stress and defects the surface electrical conductivity of metallic objects can be modified. This conductivity modification even exists for some time after the failure of the mechanical attack. The data presented in this paper proves the effectiveness of the discovered phenomenon. Designed microwave sensor reveals remote closed metal defects. Experiments in detecting cracks within rail-wheel rims were one of the first applications.

Doppler radar active defects in metals

References (5)

  1. 1 Detection of micro-cracks on metal surfaces using near-field microwave dual-behavior resonator filters [DOI]
  2. 2 Sophisticated Microwave Nondestructive Testing Method for Metals [DOI]
  3. 3 SIZE MEASUREMENT OF TIGHTLY CLOSED SURFACE CRACKS BY SURFACE ACOUSTIC WAVES [DOI]
  4. 4 Quantitative nondestructive testing of small, tight cracks using ultrasonic angle beam technique
  5. 5 Microwave nondestructive testing of coatings and paints using free-space microwave measurement system [DOI]

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