國家衛生研究院 NHRI:Item 3990099045/4864
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    题名: Fabrication and characterization of microscale sensors for strain measurement in flexible polymer heart valve leaflet
    作者: Lin, YL;Su, KT;Chen, GS;Liu, JS
    贡献者: Division of Medical Engineering Research
    摘要: Flexible polymer heart valves are promising clinical prostheses for replacement of diseased or malfunctioned natural heart valves. However, the flexible polymer leaflets are prone to fatigue fracture, which hinders their practicality in clinical applications. In this study, microstrain sensor (gauge) for strain measurement is designed in the polyurethane (PU) thin film to measure the stress/strain in situ. In our design, the strain gauge is embedded in PU, which is different than the commercial strain gauge of sticking to the sample. The metal layer of strain gauge used in this study is gold. The overall size of the designed strain gauge is 1mmx1mmx0.1 mu m, and the resistance value was measured to be 200 +/- 30. The static test of strain gauge without damp proof shows that gauge sensitivity G was measured to be 4 and 1.8, when strain range is less than 1% and between 1-1.5%, respectively, while the static test of strain gauge with damp proof shows that gauge sensitivity G was measured to be 2.6 when strain range is less than 1.2%. The dynamic test of strain gauge was also applied in this study.
    日期: 2010-04
    關聯: Materials and Manufacturing Processes. 2010 Apr;25(4):243-245.
    Link to: http://dx.doi.org/10.1080/10426910903426000
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=1042-6914&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000277622500007
    Cited Times(Scopus): http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=77951997515
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