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Compressional wave probe Shear wave probe
Relative sensitivity of probes
Factors affecting the determination
2 other sections not shown
ACOUSTIC IMPEDANCE amplitude angle of incidence attenuation backing strip base beam axis beam profile beam spread block A2 calibration blocks centre line compressional wave probe cross-section dead zone determined direction distance-amplitude double-traverse echo height echo signal edge effective beam energy equipment flaw detection flaw location slide flaw size estimation frequency full skip graticule haIf skip interface IOW block isobar itseIf measured ment mode change obtained parent material particle displacement penetration bead plane plotted probe angle probe crystal probe index probe position probe shoe procedure propagation pulse Radiation pattern range Rayleigh wave reference block reference echo reflection reflector resolution scale scan screen Section sensitivity level setting shear wave probe shown in Fig skip position Snell's Law sound field Sound intensity sound pressure Specular reflection Surface normal SURFACE WAVE target hole technique testblock tester thickness tion traverse ultrasonic beam ultrasonic waves velocity wavelength weld joint workpiece zero