声发射信号的产生是由于在金属加工中分子的晶格发生畸变、裂纹加剧以及材料在塑性变形时释放出的一种超高频应力波脉冲信号。通过现代计算机技术观察到的声发射波形特征分为连续型和突发型。 受环境影响小,可以只对我们感兴趣的高频段进行分析。
...断裂力学,声发射信号,扫描电镜(SEM),非平衡统计,塌陷区 [gap=978]Key words fracture mechanics,acoustic emission signal,scan electron microscopy (SEM),non-balanced statistics,subsiding area ..
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声发射信号处理器 acoustic emission signal processor
声发射信号幅度 acoustic emission signal amplitude
声发射信号发生器 AE signal generator ; Acoustic emission signal generator
声发射信号持续时间 AE signal duration ; Acoustic emission signal duration
声发射信号终止点 AE signal end
声发射信号上升时间 AE signal rise time
突发型声发射信号 burst acoustic emission signal
声发射信号起始点 AE signal start
连续声发射信号定位 Location continuous AE signal
对侧刺激声作用下瞬态诱发耳声发射信号的相位研究。
Phase Variation Analysis of Transient Evoked Otoacoustic Emission Signal with or without Contralateral acoustic Stimulation.
结果表明:岩石压入硬度与声发射信号的积分rms有最好的相关关系。
It is indicated that there is the best correlation between rock indentation hardness and integrated RMS of AE events.
文章根据污秽放电伴随的超声信号,提出用声发射信号来反映绝缘子的污闪过程。
In this paper, the method which can judge the working condition of the insulator based on the acoustic emission is given (AE method).
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