Standard Practice for the Measurement of the Apparent Attenuation of Longitudinal Ultrasonic Waves by Immersion Method

Importancia y uso:

5.1 The measurement of apparent attenuation in materials is useful in applications such as the comparison of heat treatments of different lots of material or the assessment of the degradation of materials due to environment.

5.2 Several different modes of wave vibration can be propagated in solids. This practice is concerned with the attenuation associated with longitudinal waves introduced into the specimen by the immersion method.

5.3 This practice allows for the comparison of the apparent attenuations of geometrically similar specimens.

5.4 For the determination of apparent attenuation, the procedures described herein are valid only for measurements in the far field of the ultrasonic beam.

Subcomité:

E07.06

Referida por:

C1332-18R23, E2533-21, E3166-20E01

Volúmen:

03.03

Número ICS:

17.140.01 (Acoustic measurements and noise abatement in general)

Palabras clave:

apparent attenuation; attenuation; immersion method; nondestructive examination; ultrasonic examination ;