在综合了回声法和频谱振幅比法优点的基础上，提出等效声阻抗法。
Based on synthesizing advantages of the pulse echo and spectral ration techniques, a new method, the equivalent acoustic impedance technique is proposed.
回顾了实验室中超声波测量Q值的四种常用方法：上升时间法、回声法、频谱振比法和波形反演法。
The four common ultrasonic methods for measuring Q value in the laboratory, rise time, pulse echo, spectral ration and waveform inversion techniques are reviewed.
怀特利表示：“我们的目标是理解经过N多年的进化后的蝙蝠的回声定位法的过程，以便能把类似的信号或技术用在我们的工程系统上。”
Whiteley said: 'We aim to understand the echolocation process that bats have evolved over millennia and employ similar signals and techniques in engineering systems.
应用推荐