Dependence of the Impact Response of Polyvinylidene Fluoride Sensors on Their Supporting Materials' Elasticity
Identifieur interne : 001C87 ( Main/Merge ); précédent : 001C86; suivant : 001C88Dependence of the Impact Response of Polyvinylidene Fluoride Sensors on Their Supporting Materials' Elasticity
Auteurs : Yunfang Jia ; Xinjuan Chen ; Qingshan Ni ; Longhua Li ; Cheng JuSource :
- Sensors (Basel, Switzerland) [ 1424-8220 ] ; 2013.
Abstract
Polyvinylidene fluoride (PVDF) is popular sensing material because of its unique piezoelectric characteristics. In this work an impact sensor was prepared from a sandwiched structure PVDF film, and the related detection circuits were presented. The dependence of the PVDF sensors' response on the elasticity of the supporting materials was examined and discussed. Here two response indexes were discussed, which were the peak-to-peak voltage (Vpp) and the recovery time. Firstly, falling impact experiments were executed on desk-supported PVDF sensors (100 μm PVDF film) using free falls of different weights from different heights. Then the same shock experiments were repeated on the same sensor, but changing the backstops to a sponge and rubber, respectively. On the desk, the values of Vpp were bigger than when the other two backstops were used; but the changes of the impact energy could not be reflected by the PVDF sensor when it was supported by a hard material. It was found that the biggest sensitivity of the voltage response (about 96.62 V/J) was obtained by the sponge-supported sensor; for the same sensor, when it was supported by rubber, the slope was 82.26 V/J. Moreover, the recovery time for the desk-supported sensor was almost constant, varying from 0.15 to 0.18 s, while for the same sensor supported by sponge or rubber, its recovery time changed with the shifting of the impact energy in the range of 0.02∼0.36 s, but no pattern could be found in the recovery-time characteristics.
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DOI: 10.3390/s130708669
PubMed: 23881132
PubMed Central: 3758616
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Dependence of the Impact Response of Polyvinylidene Fluoride Sensors on Their Supporting Materials' Elasticity</title><author><name sortKey="Jia, Yunfang" sort="Jia, Yunfang" uniqKey="Jia Y" first="Yunfang" last="Jia">Yunfang Jia</name></author><author><name sortKey="Chen, Xinjuan" sort="Chen, Xinjuan" uniqKey="Chen X" first="Xinjuan" last="Chen">Xinjuan Chen</name></author><author><name sortKey="Ni, Qingshan" sort="Ni, Qingshan" uniqKey="Ni Q" first="Qingshan" last="Ni">Qingshan Ni</name></author><author><name sortKey="Li, Longhua" sort="Li, Longhua" uniqKey="Li L" first="Longhua" last="Li">Longhua Li</name></author><author><name sortKey="Ju, Cheng" sort="Ju, Cheng" uniqKey="Ju C" first="Cheng" last="Ju">Cheng Ju</name></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">23881132</idno><idno type="pmc">3758616</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3758616</idno><idno type="RBID">PMC:3758616</idno><idno type="doi">10.3390/s130708669</idno><date when="2013">2013</date><idno type="wicri:Area/Pmc/Corpus">002471</idno><idno type="wicri:Area/Pmc/Curation">002471</idno><idno type="wicri:Area/Pmc/Checkpoint">001329</idno><idno type="wicri:Area/Ncbi/Merge">002818</idno><idno type="wicri:Area/Ncbi/Curation">002818</idno><idno type="wicri:Area/Ncbi/Checkpoint">002818</idno><idno type="wicri:Area/Main/Merge">001C87</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Dependence of the Impact Response of Polyvinylidene Fluoride Sensors on Their Supporting Materials' Elasticity</title><author><name sortKey="Jia, Yunfang" sort="Jia, Yunfang" uniqKey="Jia Y" first="Yunfang" last="Jia">Yunfang Jia</name></author><author><name sortKey="Chen, Xinjuan" sort="Chen, Xinjuan" uniqKey="Chen X" first="Xinjuan" last="Chen">Xinjuan Chen</name></author><author><name sortKey="Ni, Qingshan" sort="Ni, Qingshan" uniqKey="Ni Q" first="Qingshan" last="Ni">Qingshan Ni</name></author><author><name sortKey="Li, Longhua" sort="Li, Longhua" uniqKey="Li L" first="Longhua" last="Li">Longhua Li</name></author><author><name sortKey="Ju, Cheng" sort="Ju, Cheng" uniqKey="Ju C" first="Cheng" last="Ju">Cheng Ju</name></author></analytic><series><title level="j">Sensors (Basel, Switzerland)</title><idno type="eISSN">1424-8220</idno><imprint><date when="2013">2013</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p>Polyvinylidene fluoride (PVDF) is popular sensing material because of its unique piezoelectric characteristics. In this work an impact sensor was prepared from a sandwiched structure PVDF film, and the related detection circuits were presented. The dependence of the PVDF sensors' response on the elasticity of the supporting materials was examined and discussed. Here two response indexes were discussed, which were the peak-to-peak voltage (V<sub>pp</sub>) and the recovery time. Firstly, falling impact experiments were executed on desk-supported PVDF sensors (100 μm PVDF film) using free falls of different weights from different heights. Then the same shock experiments were repeated on the same sensor, but changing the backstops to a sponge and rubber, respectively. On the desk, the values of V<sub>pp</sub> were bigger than when the other two backstops were used; but the changes of the impact energy could not be reflected by the PVDF sensor when it was supported by a hard material. It was found that the biggest sensitivity of the voltage response (about 96.62 V/J) was obtained by the sponge-supported sensor; for the same sensor, when it was supported by rubber, the slope was 82.26 V/J. Moreover, the recovery time for the desk-supported sensor was almost constant, varying from 0.15 to 0.18 s, while for the same sensor supported by sponge or rubber, its recovery time changed with the shifting of the impact energy in the range of 0.02∼0.36 s, but no pattern could be found in the recovery-time characteristics.</p></div></front><back><div1 type="bibliography"><listBibl><biblStruct><analytic><author><name sortKey="Kawai, H" uniqKey="Kawai H">H. Kawai</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Lima, J A P" uniqKey="Lima J">J.A.P. Lima</name></author><author><name sortKey="Marin, E" uniqKey="Marin E">E. 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