| 刘岩.输入电功率在大范围内变动时声致发光与电功率之间的关系[J].,1995,14(1):39-41,18 |
| 输入电功率在大范围内变动时声致发光与电功率之间的关系 |
| The rolation botween sonoluminescence and electrical power at a wide range of the input power |
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| 中文摘要: |
| 采用频率为1．1MHz，声辐射面积为3cm~2的换能器，在输入电功率0－120W范围内研究了被空气自然饱和的纯水中声致发光强度和输入电功率在大范围内变化时的关系．结果表明，声致发光在输入电功率为70-90W之间，不再随输入电功率的增加而增加，呈现出饱和现象．在饱和值的出现前，发光强度随输入电功率的增加呈不规则的阶状增加；在饱和值结束后，随输入电功率的增加，发光强度迅速减小．本文对实验结果进行了些定性的讨论． |
| 英文摘要: |
| Ultrasonic transducer with frequency 1.1 MHz was used to induce sonoluminescence (SL) from air saturated water at the input electric power in the range of 0-120W. We found the SL intensity change with input electric power, a peak appear at the input power between 70-90 W. In forward position of the peak, SL intensity change as several steps with input electric power increased, in the end of the peak, SL intensity dec redse sharply with increasing input electric power. |
| DOI：10.11684/j.issn.1000-310X.1995.01.010 |
| 中文关键词: 超声波 声致发光强度 输入电功率 |
| 英文关键词: Ultrasound Sonoluminescence intensity input electric power |
| 基金项目:南京大学近代声学国家重点实验室资助 |
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