Seldis Thomas
European Commission, Joint Research Centre, Institute for Energy, P.O. Box 2, 1755 ZG Petten, The Netherlands.
Ultrasonics. 2010 Jan;50(1):9-12. doi: 10.1016/j.ultras.2009.07.001. Epub 2009 Jul 10.
The absolute ultrasonic wave attenuation is an important input parameter for mathematical models, which play an increasingly important role in non-destructive testing. The measurement of the absolute ultrasonic wave attenuation however is a difficult task. When conventional measurement techniques are applied, corrections to the raw data are required to account for apparent losses. In this study, a modified experimental approach is proposed to determine the absolute ultrasonic attenuation without any further corrections of the raw data.
绝对超声波衰减是数学模型的一个重要输入参数，这些模型在无损检测中发挥着越来越重要的作用。然而，绝对超声波衰减的测量是一项艰巨的任务。当应用传统测量技术时，需要对原始数据进行校正以考虑表观损耗。在本研究中，提出了一种改进的实验方法来确定绝对超声衰减，而无需对原始数据进行任何进一步校正。
