A low frequency multi mode ultrasonic Lamb wave method suitable for characterizing shear and longitudinal wave velocities, thickness and density of ultra thin elastic layers is presented.
提出了用低频多模式超声兰姆波定征方法来估计超薄弹性层的纵波声速、横波声速、厚度和密度等参数。
This method has better practicability than other Board Constrained Inversion under sharp layers and multi faults condition.
该方法在陡倾斜和多断层的复杂地质条件下，比其他宽带约束反演方法具有更好的实用性。
The small calculation effort and the satisfactory precision justify the present method as a very effective means for studying the electronic structures of multi-layers SLS.
由于本文方法只需很小的计算量且有较好的精度，对于多层应变层超晶格电子结构的研究将是有效的方法。
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