Interference Effect in a Multifrequency Ultrasonic Pulse Echo and Its Application to Flaw Characterization
作者:
Laszlo Adler,
H. L. Whaley,
期刊:
The Journal of the Acoustical Society of America
(AIP Available online 1972)
卷期:
Volume 51,
issue 3B
页码: 881-887
ISSN:0001-4966
年代: 1972
DOI:10.1121/1.1912935
出版商: Acoustical Society of America
数据来源: AIP
摘要:
The dependence of spectral variations within a reflected broad‐band ultrasonic pulse on the size and orientation of the reflector was determined experimentally. An analytical model is developed on the assumption that interference of the waves received from the edges of the reflecting surface is responsible for the variations of the received frequency spectra. It explains the experimental results very well. The feasibility of determining the size and orientation of hidden flaws in metals by this method is demonstrated.
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