The influence of temperature on the speed of sound of cortical bone phantom: a metrological view

This paper presents an experimental study to estimate the group velocity of ultrasound longitudinal propagation in a cortical bone phantom for the temperature range of 19 °C to 37 °C, and respective measurement uncertainty estimates. The group velocity was measured using the pulse/echo method. The u...

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Bibliographic Details
Published in:Journal of physics. Conference series 2018-03, Vol.975 (1), p.12021
Main Authors: Souza, R M, Costa-Felix, R P B, Alvarenga, A V
Format: Article
Language:English
Subjects:
Group velocity
Physics
Propagation velocity
Uncertainty
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Summary:This paper presents an experimental study to estimate the group velocity of ultrasound longitudinal propagation in a cortical bone phantom for the temperature range of 19 °C to 37 °C, and respective measurement uncertainty estimates. The group velocity was measured using the pulse/echo method. The uncertainty model was proposed based on the BIPM JCGM:100 - Guide of the Expression of Uncertainty in Measurements. The velocity results show a tendency to decrease linearly as the temperature increases, considering the uncertainty estimated.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/975/1/012021