After having located a defect it is of great importance to know something about its size, since this is the basis for a decision concerning its importance for the practical integrity of the specimen which contains it. Its shadow, as revealed by X-ray screening could already be very useful and this is the aim of all imaging methods. By the use of sound sensors, signals are obtained to transform the sound ``picture'' into a visual image.
CITATION STYLE
Krautkrämer, J., & Krautkrämer, H. (1990). Imaging and Methods of Reconstruction. In Ultrasonic Testing of Materials (pp. 241–263). Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-662-10680-8_14
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