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L12 summary - NDT - Coggle Diagram
L12 summary - NDT
Ultra-sound
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gain, range, gates
range - viewable depth,
- allow to see signals coming from deeper
gates - monitor and measure signals (should be at least 80%) and should be placed over the selected signal
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calibration procedure -
- Velocity calibration: find accurate velocity of sound in a particle material
- Probe (wedge) delay: find delays due to couplant delay or electronic switching
(red line - gates)
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