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Page 6 of 11 Kim et al. Soft Sci 2024;4:12 https://dx.doi.org/10.20517/ss.2023.50
Figure 3. Examples of Coupled Mechanics in Mechano-acoustic Sensors. (A1-3) Covid sensor correlated with droplet generation during
[23]
respiratory activities using PTV . Copyright©2021, National Academy of Science; (B1-3) dual sensor focusing on the temporal
[24]
variations of the neck for cardiopulmonary applications using 3D-PTV . Copyright©2021, American Association for the Advancement
[25]
of Science; (C1-3) swallowing sensor focusing on the spatial variations of the neck for dysphasia payments using 3D DIC .
Copyright©2022, Nature Publishing Group; (D1-3) speech sensor investigating the flow physics of plosive speech using PIV [10] .
Copyright©2022, National Academy of Science. PTV: Particle tracking velocimetry; 3D: three-dimensional; DIC: digital image
correlation; PIV: particle image velocimetry.
profiles at LP and SN after a differential operation with the signals at SM, further supporting their
fundamental swallowing mechanics. The results justify the development of an elongated version of the
device that allows positioning it on the LP and SN or SN and SM for monitoring swallows across a broad
range of individuals.
