Laser Shearography

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Across
  1. 1. The physical deformation or relative displacement gradient measured by this technique.
  2. 4. The type of interference that occurs when light wave peaks align to increase brightness.
  3. 6. The grainy, random interference pattern created when a laser reflects off a rough surface.
  4. 7. The external force or stimulus applied to a material to induce measurable surface deformation.
  5. 9. The primary industry that relies on shearography to inspect aircraft components.
  6. 11. The distance between two peaks on a wave.
  7. 12. Light waves that maintain a constant phase relationship.
  8. 13. The optical process of splitting and shifting an image to create an interferogram.
  9. 14. The distinctive circular fringe pattern that typically highlights the exact location of a subsurface flaw.
  10. 15. The specific state or position of a light wave used in calculations to map surface changes.
Down
  1. 2. The phenomenon where overlapping light waves combine to form a fringe pattern.
  2. 3. A testing method that evaluates a material without causing permanent damage.
  3. 5. The type of interference that occurs when light waves cancel each other out to create dark areas.
  4. 8. Anomaly or internal flaw detected by surface variations.
  5. 10. The coherent light source used to illuminate the test object's surface.