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  • Temperature self compensation for dynamic sensitivity in 3D-printed piezoresistive sensors [Elektronski vir]
    Krivic, Gašper, 1998- ...
    Temperature variations induce nonlinear changes in the dynamic sensitivity of 3D-printed piezoresistive sensors, thereby limiting their deployment in thermally variable environments. Conventional ... temperature- compensation approaches rely on dedicated temperature sensors or extensive calibration matrices, which increase system complexity and reduce measurement reliability. This research investigates the hypothesis that temperature-induced changes in dynamic sensitivity in 3D- printed thermoplastic extrusion technology piezoresistive sensors are directly proportional to the changes in electrical resistance. The hypothesis was tested against twenty-four single-process 3D-printed accelerometers operating from 5 ◦C to 35 ◦C in three humidity conditions. Strong linear correlations (𝑅2 > 0.98) between the relative resistance and the dynamic sensitivity changes were found. The resistance-based temperature self-compensation method does not require additional sensors. It enables accurate sensitivity prediction with errors below 5 % in normal humidity and 12 % in extreme humidity environments. This approach eliminates the need for temperature sensors while maintaining measurement accuracy, enabling the deployment of thermoplastic 3D-printed piezoresistive sensors in smart structures operating across varying environmental conditions.
    Vir: International journal of mechanical sciences [Elektronski vir]. - ISSN 1879-2162 (Vol. 309, [article no.] 111075, 2025, 11 str.)
    Vrsta gradiva - e-članek ; neleposlovje za odrasle
    Leto - 2025
    Jezik - angleški
    COBISS.SI-ID - 259970051

    Povezava(-e):

    https://www.sciencedirect.com/science/article/pii/S0020740325011543?via%3Dihub
    Repozitorij Univerze v Ljubljani – RUL
    DOI

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