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Erschienen in:
1996 | OriginalPaper | Buchkapitel
Surface Elastic Wave Measurements for Determination of Steel Hardness Gradients
verfasst von : G. A. Gordon, B. R. Tittmann
Erschienen in: Review of Progress in Quantitative Nondestructive Evaluation
Verlag: Springer US
Enthalten in: Professional Book Archive
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Many researchers have used Rayleigh wave dispersion measurements to examine surface and subsurface material properties, in the ultrasonic frequency range below 50 MHz, using contact transducers in a pitch-catch mode configuration, e.g. [1–4]. Unfortunately there are many potential sources of error which can lead to poor measurement reproducibility and low accuracy. This poor reproducibility, and the often stringent requirement for measurement accuracy, have been obstacles to the more wide spread use of Rayleigh wave dispersion and time of flight measurements in industrial settings [3].