Spacecraft leak location using structure-borne noise

@inproceedings{Reusser2017SpacecraftLL,
  title={Spacecraft leak location using structure-borne noise},
  author={Ricky S Reusser and Dale E. Chimenti and Stephen D. Holland and Ron A Roberts},
  year={2017}
}
Guided ultrasonic waves, generated by air escaping through a small hole, have been measured with an 8×8 piezoelectric phased‐array detector. Rapid location of air leaks in a spacecraft skin, caused by high‐speed collisions with small objects, is essential for astronaut survival. Cross correlation of all 64 elements, one pair at a time, on a diced PZT disc combined with synthetic aperture analysis determines the dominant direction of wave propagation. The leak location is triangulated by… CONTINUE READING

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