| 用激光外差干涉仪探测金属表面超声振动的实验设计 |
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| 引用本文： | 丁红胜,童莉葛,潘礼庆,王少铁.用激光外差干涉仪探测金属表面超声振动的实验设计[J].物理实验,2004,24(2):16-19. |
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| 作者姓名： | 丁红胜 童莉葛 潘礼庆 王少铁 |
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| 作者单位： | 1. 北京科技大学,应用科学学院,物理系,北京,100083
2. 北京科技大学,机械工程学院,北京,100083 |
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| 摘 要： | 将激光外差法测量的科研成果转化为物理专业实验，设计了易于调节的激光外差干涉系统，实现了外差信号的接收，用压电超声装置代替激光超声装置，使实验系统小型化。
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| 关 键 词： | 激光外差干涉仪 超声振动 非接触检测 压电超声装置 布拉格器件 探测器 声光调制 |
| 文章编号： | 1005-4642(2004)02-0016-04 |
| 修稿时间： | 2003年7月14日 |
Experimental design for detecting ultrasonic vibration on the surface of metal with heterodyne interferometer |
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| DING Hong-sheng ,TONG Li-ge ,PAN Li-qing ,Wang Shao-tie.Experimental design for detecting ultrasonic vibration on the surface of metal with heterodyne interferometer[J].Physics Experimentation,2004,24(2):16-19. |
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| Authors: | DING Hong-sheng TONG Li-ge PAN Li-qing Wang Shao-tie |
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| Institution: | DING Hong-sheng 1,TONG Li-ge 2,PAN Li-qing 1,Wang Shao-tie 1 |
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| Abstract: | A laser heterodyne interferometer is designed, in which the optical path is easy to be adjusted. Using this heterodyne interferometer the heterodyne signal is received successfully. In order to miniaturize the experiment system, high power laser is not used to excite ultrasonic in the sample, however the system can be used to carry the non-contact detection of the ultrasonic vibration on the surface of the sample excited by piezoelectricity device. |
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| Keywords: | heterodyne interferometer ultrasonic vibration non-contact detection |
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