Abstract
Ultrasonic wave attenuation (α) measurement by pulse-echo method exhibits pronounced dependence on experimental conditions. It is shown to be an inherent characteristic of the method itself. Estimation of α from the component wave amplitudes in the frequency scale gives more accurate and consistent value. This technique, viz., the Fourier spectrum pulse-echo (FSPE) is demonstrated to determine the ultrasonic velocity (v) and attenuation constant (α) in ultrapure de-ionized water at room temperature (25 °C) at 1 and 2 MHz wave frequency.
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Acknowledgement
The author is grateful to Sankari Chakraborty and Papia Mondal for their assistance and technical help in conducting the experiment.
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Pal, B. Fourier Spectrum Pulse-Echo for Acoustic Characterization. J Nondestruct Eval 37, 77 (2018). https://doi.org/10.1007/s10921-018-0533-x
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DOI: https://doi.org/10.1007/s10921-018-0533-x