Influence of Transducer Structure on Mechanical and Chemical Effects at 20 kHz Sonication
Influence of Transducer Structure on Mechanical and Chemical Effects at 20 kHz Sonication
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20 kHz 超声处理时换能器结构对机械和化学效应的影响
DOI：
10.1143/jjap.51.07gd06
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发表时间：
2012
影响因子：
1.5
通讯作者：
and Shinobu Koda
中科院分区：
文献类型：
--
作者：
Khuyen Viet Bao Tran;Yoshiyuki Asakura;and Shinobu Koda
在这项工作中，我们研究了换能器结构对20 kHz超声处理的机械和化学效应的影响，其中通过量热法测量的耗散功率保持恒定（5 W）。通过聚环氧乙烷在水溶液中的降解速率来评价机械效应，并用碘化钾溶液测量化学效应。换能器固定在直径为50 mm的节点处的浴式装置的机械效应几乎等于喇叭式装置的机械效应。前换能器表现出最强的化学效应之间的换能器在这里调查。
In this work, we examined the influence of transducer structure on the mechanical and chemical effects of 20 kHz sonication, where the dissipated power measured by calorimetry was kept constant (5 W). The mechanical effects were evaluated from the degradation rate of poly (ethylene oxide) in aqueous solution, and the chemical effects were measured with potassium iodide solution. The mechanical effects for a bath-type apparatus with the transducers fixed at a node with a diameter of 50 mm are nearly equal to those for a horn-type apparatus. The former transducer showed the strongest chemical effects among the transducers investigated here.