The acoustic emission energy signals become stronger with the increase of loading rate.

加载速率越大，声发射能量最大值也越大。

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Modal acoustic emission (MAE) that USES the energy produced by the growing crack for detection without scanning has shown its conspicuous advantage.

模态声发射由于无需扫查工件而利用裂纹生长产生的能量来实现检测，从而显示了极大的优越性。

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There are a lot of research on the acoustic characteristics of the acoustic emission transducer and its array for the emission energy is concentrated in some specific direction.

在水声方面，为了得到用较小的发射功率探测到更远得距离的目标，使发射能量集中在某些特定方向，人们对水声发射换能器及其基阵的声特性进行了很多研究。

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