Park, Cheoleon Kim, Hojoon Cha, Youngsu 2024-01-19T17:02:34Z 2024-01-19T17:02:34Z 2021-09-02 2020-08 2076-3417 https://pubs.kist.re.kr/handle/201004/118348 In this paper, we introduce a piezoelectric sensor curled on a thread core in a helical structure. In particular, a polyvinylidene fluoride film was curled and fixed on a thread core. A series of experiments were designed to deliver flexural loading to the piezoelectric sensor, to study its sensing characteristics. The experimental results show that the sensing output of the sensor is in phase with the applied flexural loading. In addition, the output voltage of the textile-based piezoelectric sensor was measured according to various flexural loadings. The flexural bending angle applied to the piezoelectric sensor is expected to be a power function of the voltage output. In addition, we demonstrate a smart textile by weaving the piezoelectric sensor. English MDPI SMART NANOGENERATOR Piezoelectric Sensor with a Helical Structure on the Thread Core Article 10.3390/app10155073 1 APPLIED SCIENCES-BASEL, v.10, no.15 APPLIED SCIENCES-BASEL 10 15 scie scopus 000559108000001 2-s2.0-85088819018 Chemistry, Multidisciplinary Engineering, Multidisciplinary Materials Science, Multidisciplinary Physics, Applied Chemistry Engineering Materials Science Physics Article SMART NANOGENERATOR helical structure sensor piezoelectric material smart textile