108 Chapter 5
5.4.3
Multiple Bounce Weld Inspection
If the sound path bounces or reflects one or more times from the sides of the test piece, the
sound path and surface distance readings will be the same as for direct reflection. However, the
depth calculation will give a result greater than the actual thickness (as shown in
Figure 5-45
).
Figure 5-45: Multiple Bounce Shear Calibration
1 = actual depth w = wall thickness
2 = calculated depth s = sound path (measured on EL/LCD
)
Depth calculation for one bounce: calculate the depth as in Direct Reflection.
depth (2) = S • cos (angle)
Subtract the depth (2) from twice the wall thickness to obtain the actual depth.
actual depth (1) = 2w - depth (2)
FLAW
WELD
W
Ø
1
2
Содержание Sonic 1200S/HR
Страница 1: ...PN 7720044 PN 7720066 March 2006 Sonic 1200S HR Ultrasonic Flaw Detector User s Manual...
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Страница 15: ...Preparation for Operation 7 1 2 2 Sonic 1200HR Packages...
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Страница 110: ...102 Chapter 5 Figure 5 37 IIW Type 1 Block Echoes Figure 5 38 IIW Type 2 Block Echoes...
Страница 119: ...Applications 111 f Calibration is now done see Figure 5 50 Figure 5 48 Figure 5 49...
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