| 负梯度深海中的反转点会聚区 |
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| 引用本文： | 张仁和, 孙庚辰, 雷良颖, 周坚力. 负梯度深海中的反转点会聚区[J]. 声学学报, 1981, 6(3): 198-200. DOI: 10.15949/j.cnki.0371-0025.1981.03.011 |
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| 作者姓名： | 张仁和 孙庚辰 雷良颖 周坚力 |
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| 作者单位： | 中国科学院声学研究所(张仁和，孙庚辰，雷良颖)，中国科学院声学研究所(周坚力) |
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| 摘 要： | 文献[1]给出的水下声道中反转点会聚区的理论较好地解释了深海声道的实验结果[2],并指出表面声道中亦存在反转点会聚区,后者已为模拟实验所证实。根据反转点会聚区理论,我们预计在负梯度情况下从海底反射的声波也可能形成反转点会聚区;为此我们在深海条件下进行了实验,实验结果证实了理论预计。
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| 收稿时间： | 1980-04-18 |
TURNING-POINT CONVERGENCE-ZONES IN THE DEEP SEA WITH NEGATIVE VELOCITY GRADIENT |
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| ZHANG Ren-he, SUN Geng-chen, LEI Liang-ying, ZHOU Jian-li. TURNING-POINT CONVERGENCE-ZONES IN THE DEEP SEA WITH NEGATIVE VELOCITY GRADIENT[J]. ACTA ACUSTICA, 1981, 6(3): 198-200. DOI: 10.15949/j.cnki.0371-0025.1981.03.011 |
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| Authors: | ZHANG Ren-he SUN Geng-chen LEI Liang-ying ZHOU Jian-li |
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| Abstract: | An experimental result in the deep sea is presented. The experiment has shown that, under the condition of negative velocity gradient, the turning-point convergence-zones can be form: d by the sound reflected from the sea bottom. For a source-and receiver-depth at 100 in and a frequency at 200 Hz, the gains of the first three convergence-zones are of the order of 13 to 14 dB. Calculated gains and positions are consistent with experimental results. |
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