國家衛生研究院 NHRI:Item 3990099045/6324
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    题名: Effect of inter-rod coupling on 1-3 piezocomposite high-power ultrasonic transducers
    作者: Lin, Y;Chen, GS;Liu, HC;Lin, YC
    贡献者: Division of Medical Engineering Research
    摘要: Efficiency is a critical performance for a high-power ultrasonic transducer composed of 1-3 piezocomposites and geometric parameters of the composites can influence the efficiency of the transducer. The effect of inter-rod responses in the composite matrix on the efficiency was experimentally investigated in this study. For analyses, four PZT4-epoxy composite ultrasonic transducers with various volume fractions and inter-rod spacing were fabricated in-house. The experimental results demonstrated that the inter-rod coupling of the 0.1-mm spacing could significantly degrade the efficiency of the composite probe at about 1.0 MHz resonance since the 0.1-mm spacing between PZT4 rods was so small as to cause a high interference. At the same volume fraction, the transducer engineer should take the inter-rod coupling into account for the design of the high-power ultrasonic transducer.
    日期: 2012-03
    關聯: Advanced Materials Research. 2012 Mar;476-478:2105-2108.
    Link to: http://dx.doi.org/10.4028/www.scientific.net/AMR.476-478.2105
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000312277301073
    Cited Times(Scopus): http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84863364219
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