| 超声波声速测量新方法 |
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| 引用本文： | 魏国瑞,潘沛,张建国,李隆. 超声波声速测量新方法[J]. 西安建筑科技大学学报(自然科学版), 2004, 36(3): 375-378 |
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| 作者姓名： | 魏国瑞 潘沛 张建国 李隆 |
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| 作者单位： | 西安建筑科技大学理学院,陕西,西安,710055 |
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| 基金项目： | 西安建筑科技大学 2 0 0 4年度实验技术研究基金项目 ( 0 40 1) |
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| 摘 要： | 双踪示波法是测量声速的一种新方法．它利用示波器的双踪功能．以发射信号的波形为参考对象，与接收信号波形直接进行比较．当连续单向移动接收换能器时，可观察到发射信号的波形与接收信号波形发生多次重合现象．连续两次重合图象所对应的位置值之差就是我们所要测量的波长值．双踪示波法不仅适用于测量声波在空气中的传播速度．同样也可以用于测量声波在液体中的传播速度．
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| 关 键 词： | 超声波 声速 双踪示波法 |
| 文章编号： | 1006-7930(2004)03-0375-04 |
| 修稿时间： | 2004-03-18 |
A new method for accurate measurement of the velocity of supersoinic wave |
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| WEI Guo-rui,PAN Pei,ZHANG Jian-guo,LI Long. A new method for accurate measurement of the velocity of supersoinic wave[J]. Journal of Xi'an University of Architecture & Technology, 2004, 36(3): 375-378 |
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| Authors: | WEI Guo-rui PAN Pei ZHANG Jian-guo LI Long |
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| Abstract: | Twin-complex oscillometry is a new method,which can for measuring supersonic velocity. Where the twin-complex function of oscillograph is used. With the sent signal wave chosen as the reference object, it can be compared directly with the receptive signal by twin-complex oscillograph. The phenomenon that the receptive signal wave is surperposed with the transmitted signal wave when the receptive equipment is moved continuously along a single direction. The position dispersion of two continuous wave superposition is the wave-length of the sonic velocity. Twin-complex oscillometry can not only be applied to supersonic velocity in the air, but also it can be used for supersonic velocity measurement in all kinds of liquids. |
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| Keywords: | supersonic wave sonic velocity the twin-complex oscillometry |
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