Abstract
Techniques are described for measurements of the radiation pattern of elastic waves scattered by a complex bulk defect. The problems addressed are sample preparation, system calibration, data acquisition, and data processing. The results are given in terms of two specific defects: a circular crack extending from a spherical void and a dual spherical void. The diameter of the crack and the separation between the two voids are approximately the same, i. e. , 1200 mu m. The results show well-defined features in the time-domain, the real and imaginary part of the Fourier spectrum and in the impulse response function which can readily be used to distinguish between these two types of defects.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 842-846 |
| Number of pages | 5 |
| Journal | Ultrasonics Symposium Proceedings |
| Volume | 2 |
| State | Published - Jan 1 1980 |
| Event | Unknown conference - Boston, Mass Duration: Nov 5 1980 → Nov 7 1980 |
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All Science Journal Classification (ASJC) codes
- Engineering(all)
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MEASUREMENT TECHNIQUES IN ELASTIC WAVE SCATTERING EXPERIMENTS. / Ahlberg, L. A.; Tittmann, Bernhard R.
In: Ultrasonics Symposium Proceedings, Vol. 2, 01.01.1980, p. 842-846.Research output: Contribution to journal › Conference article
TY - JOUR
T1 - MEASUREMENT TECHNIQUES IN ELASTIC WAVE SCATTERING EXPERIMENTS.
AU - Ahlberg, L. A.
AU - Tittmann, Bernhard R.
PY - 1980/1/1
Y1 - 1980/1/1
N2 - Techniques are described for measurements of the radiation pattern of elastic waves scattered by a complex bulk defect. The problems addressed are sample preparation, system calibration, data acquisition, and data processing. The results are given in terms of two specific defects: a circular crack extending from a spherical void and a dual spherical void. The diameter of the crack and the separation between the two voids are approximately the same, i. e. , 1200 mu m. The results show well-defined features in the time-domain, the real and imaginary part of the Fourier spectrum and in the impulse response function which can readily be used to distinguish between these two types of defects.
AB - Techniques are described for measurements of the radiation pattern of elastic waves scattered by a complex bulk defect. The problems addressed are sample preparation, system calibration, data acquisition, and data processing. The results are given in terms of two specific defects: a circular crack extending from a spherical void and a dual spherical void. The diameter of the crack and the separation between the two voids are approximately the same, i. e. , 1200 mu m. The results show well-defined features in the time-domain, the real and imaginary part of the Fourier spectrum and in the impulse response function which can readily be used to distinguish between these two types of defects.
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M3 - Conference article
AN - SCOPUS:0019243651
VL - 2
SP - 842
EP - 846
JO - Ultrasonics Symposium Proceedings
JF - Ultrasonics Symposium Proceedings
SN - 0090-5607
ER -