engleski

ESTIMATION OF MEASUREMENT UNCERTAINTY IN ULTRASONIC THICKNESS MEASUREMENT

Recently, through several documents ranging from guidelines to standards, the strengthening of quantitative character of a result of a non-destructive testing (NDT), has been suggested and its implementation prescribed. In this article, we apply the formulated scheme on the ultrasonic thickness measurement, which is a typical, non-destructive procedure. We describe the regular experiment, formalise it, and estimate its measurement uncertainty using Monte-Carlo based simulation. Results obtained indicate significant contribution of the approach to evaluation of the testing system capability, its step-by-step improvement as well as direct tracing of consequences of any change in its characteristics.

ultrasound; measurement uncertainty; thickness measurement; Monte-Carlo simulation

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