| 采用光学频移的激光测速系统 |
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| 引用本文： | 沈熊,廖湖声.采用光学频移的激光测速系统[J].中国激光,1982,9(10):645-650. |
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| 作者姓名： | 沈熊 廖湖声 |
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| 作者单位： | 清华大学工程力学系
(沈熊)，清华大学工程力学系(廖湖声) |
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| 摘 要： | 讨论了频移的原理及其功能;介绍一种应用声光调制器作为频移器件的激光测速系统,并成功地用来测量二维阶跃扩张管道中的高湍流度回流流动。
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| 收稿时间： | 1981/12/22 |
Laser-Doppler velocimeter using the technique of optical frequency shift |
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| Abstract: | The principles and functions of frequency shift are discussed. A LDV system using an acousto-optic modulator as its optical frequency shift device is presented. The measurements of the highly turbulent recirculating flow in a two-dimensional duct with a single step expansion were successfully performed by employing the LDV system. |
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