acoustic dispersion

Phonons have complicated dispersion relations which generally have several acoustic and optical branches, the phonons in acoustic branches called acoustic phonons. The dispersion of acoustic phonons are linear around the center of the first Brillouin zone.

声学声子是声子的一个分支，它在第一布里渊区具有线性的色散关系，并且具有许多特性。

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An experimental study of acoustic dispersion of rock and extrapolation of the velocity

岩石声频散的实验研究及声波速度的外推

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Application of Acoustic Wave Formation Factors Formula to Wenliu Oilfield Acoustic Wave Equation with Dispersion STRATUM

声波地层因素公式在文留油田的应用

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Based on the results of dispersion experiments on cores of sand and shale, the paper analyzed the variability of acoustic dispersion for dry and water-saturated cores.

结合岩心砂泥岩频散特性实验结果分析了岩心在饱水及干燥状态下声频散的特点。

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The acoustic dispersion of rocks is investigated with experimental method samples of sandstone and shale are measured at different frequencies with ultrasonic pulse penetration method, and then the acoustic dispersions are analyzed.

对岩石声频散进行了实验研究，用不同频率的声学探头使用超声波脉冲穿透法对砂岩和泥岩样品进行了测量，并分析了两者的频散现象。

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For clean sandstone, the acoustic dispersion of compressional wave exists obviously when its porosity is more than 28%.

对纯砂岩，当孔隙度大于28%时存在明显纵波声频散。

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A Survey on the Acoustic Dispersion in Shaly Sandstone

泥质砂岩声频散性考察

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