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15 cards from this deck
NDT method using high-freq sound waves to detect internal flaws
Non-destructive testing
Sound reflection and echo
High-frequency sound waves in pulse form
Reflects back early, creating detectable echo pattern
Transducer
Oscilloscope or display unit
A-scan display
Reflection from an internal flaw or defect
Wave reached the material's far surface
Non-destructive - components remain usable after testing
Skilled operators required for correct interpretation
Railway, aerospace, manufacturing, power generation
Metals, plastics, ceramics, and composites
Can detect very small internal flaws
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