| 超声功率谱高低频延伸实验研究 |
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| 引用本文： | 罗长勋,马玉英,丁大成,闵一健,罗炜.超声功率谱高低频延伸实验研究[J].陕西师范大学学报,1995(4). |
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| 作者姓名： | 罗长勋 马玉英 丁大成 闵一健 罗炜 |
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| 作者单位： | 陕西师范大学物理学系，陕西师范大学应用声学研究所 |
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| 摘 要： | 测试了超声换能器在外加谐频条件下的声波辐射；发现较高频与较低频延伸之间的频率是相互关联的；经过综合归纳，得到超声频率方程，并用其它类型超声换能器作检验，证明该方程是正确的．
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| 关 键 词： | 本征频率 复合频率 声子 复合声子 |
Experiment of higher and lower frequency stretching in ultrasonic power spectrum |
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| Luo Changxun, Ma Yuying, Ding Dacheng,Min Yijan, Luo Wei.Experiment of higher and lower frequency stretching in ultrasonic power spectrum[J].Journal of Shaanxi Normal University: Nat Sci Ed,1995(4). |
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| Authors: | Luo Changxun Ma Yuying Ding Dacheng Min Yijan Luo Wei |
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| Abstract: | Through analysing test and measurment data of sonic wave radiation in the condition of adding harmonic vibration frequency at ultrasonic transducer. It is discovered that frequencies between higher and lower frequency stretching are of reciprocity. Using synthetic and inductive methods,the equation of ultrasonic frequency is obtained and the other kinds of ultransonic transductor are used in the experiment many times, the results of which all suit to the equation. |
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| Keywords: | eigenfrequency complex frequency phonon complex phonon |
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