| 超声换能器表面的振动状态 |
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| 引用本文： | 胡险峰.超声换能器表面的振动状态[J].物理实验,2006,26(6):3-7,11. |
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| 作者姓名： | 胡险峰 |
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| 作者单位： | 四川大学,物理学院,四川,成都,610064 |
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| 摘 要： | 从超声波在波密介质和波疏介质之间的传播以及诱发共振发射超声波的角度,讨论了空气中超声声速测量实验所用超声换能器的表面振动状态.理论分析及实验测量结果表明:超声换能器表面振动状态与其结构有关,超声接收器表面位移振幅一般不为零.
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| 关 键 词： | 超声换能器 声速 应力 |
| 文章编号： | 1005-4642（2006）06-0003-05 |
| 收稿时间： | 2006-01-13 |
| 修稿时间： | 2006-01-132006-03-02 |
Vibrations of surface of ultrasonic transducer |
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| HU Xian-feng.Vibrations of surface of ultrasonic transducer[J].Physics Experimentation,2006,26(6):3-7,11. |
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| Authors: | HU Xian-feng |
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| Institution: | Physics College, Sichuan University, Chengdu 610064, China |
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| Abstract: | By studying the ultrasonic propagations between dense medium and sparse medium, as well as ultrasonic irradiation induced by resonance, the surface vibration states of ultrasonic transducer used in the experiment of ultrasonic speed measurement are discussed. The theoretical analysis and the experimental results indicate that the vibration states depend on the structure of ultrasonic transducer, and the displacement amplitude of the surface of ultrasonic transducer is not zero in general. |
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| Keywords: | ultrasonic transducer sound speed stress |
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