声发射

含水岩石破裂前的声发射b值变化

The change of b-value of acoustic emission before ruptures of water-bearing rocks

基于多Agent的岩体声发射信号检测定位系统应用研究

Research and Application of Rock Acoustic Emission Signals Monitoring and Localization System Based on Multi-Agent Technology

不同结构岩石标本声发射b值和频谱的时间扫描及其物理意义

Temporal scanning of b-value and spectrum of AE activity for samples with different textures and their physical implications

G型加载途径下岩石的声发射及超声波衰减特性

Characteristics of Acoustic Emission and Attenuation of ultrasonic Waves in Rocks during the Stress Paths of Case G

金属裂纹声发射信号FIR滤波设计的滤波器参数设置方法

The Filter Parameters Set Method of FIR Filter Design for Metal Crack Acoustic Emission Signal

Gabor小波时频分析在声发射信号处理中的应用

Application of gabor wavelet time-frequency analysis in signal processing of acoustic emission

一种用ICA去除瞬态诱发耳声发射伪迹的新方法

A new method for eliminating artifact in transient evoked otoacoustic emissions using ICA

信号采集处理模块采集声发射信号，对其进行调理、AD转换成计算机可以处理的数字信号。

Signal collection handling modular collection AE signal , optimizing it , the AD Converter changing AE signal to the digital signal .

基于Lamb波频散特性的声发射源平面定位新方法

New Methods of Planar Location of Acoustic Emission Source Based on the Dispersive Characteristics of Lamb Wave

运用声发射技术检测DF4型机车通风机轴承故障

Adopting acoustic emission technique to detect the failure of bearing of DF_4 locomotive ventilator

光纤Fabry-Perot干涉式声发射传感器的研究

Study of Acoustic Emission Sensor with Optical Fiber Fabry-Perot Interference

用声发射监测A3钢板状试样的拉伸过程。

The tensile testing of A3 steel plate samples was monitored with acoustic emission .

目的研究不同原因内耳损伤下畸变产物耳声发射（distortionproductotoacousticemissions，DPOAE）改变的特点。

Objective To investigate the manifestations of distortion product otoacoustic emissions ( DPOAE ) under different causes of inner ear damage .

在CT尺度裂纹演化和破坏阶段，由于岩石损伤高度局部化，声发射率参数不能精确反映岩石破坏的细观机制。

At the process of CT crack and rapture evolution , the acoustic emission can not precisely reflect the meso-mechanism of rock deformation and rapture because of localization of damage .

岩石声发射的Kaiser效应及其在地应力场测试中的应用

Application of Kaiser effect of acoustic emission in monitoring ground stress

岩石声发射Kaiser效应的数值模拟试验研究

Numerical test on Kaiser effect in rock failure process

随后又对信号利用FFT变换出信号的频谱图，得出了在不同信号的特征频谱，由此推断声发射信号的峰值频率及特征频率。

Thirdly , concluded the different feature spectrum , and inferred the peak frequency of AE signals and characteristic frequency using FFT transform .

目的：探讨分泌性中耳炎（SOM）在鼓膜置管前后畸变产物耳声发射（DPOAE）的变化。

Objective : To discuss the effects of tympanotomy tube insertion on distortion product acoustic emissions .

最后将Hilbert-huang变换与独立分量分析相结合用于声发射信号的特征提取。

Finally , combining Hilbert-huang transformation and independent component analyzed acoustic emission signals for characteristic extraction .

综合应用声发射（AE）和电机电压电流信号法监控刀具破损，可提高刀具破损检出率。

In this paper , AE signal and motor voltage and electric current signal are used to detect cutting tool failure .

木材损伤断裂过程的声发射特性与Felicity效应

Acoustic Emission Characteristics of Damage and Fracture Process of Wood and Felicity Effect

通过铁缺乏对畸变产物耳声发射影响的研究，探讨DPOAE的临床应用。

To evaluate clinical application of DPOAE through the study of the effect of IDDPOAE .

观察了晶粒取向3%Si－Fe在横向磁化场及横向拉应力作用下，磁畴结构和磁声发射强度的变化。

Changes are observed of oriented 3 % Si-Fe in the magnetic domain structure and intensity of magnetic sound transmission under the influence of the transverse magnetic field and transverse drawing stress .

通过对FRP复合材料损伤状态下的声发射特性研究，为复合材料性能评价提供实验依据。

The study of acoustic emission characteristics under the damage status of FRP composite material can provide theoretical basis for the performance evaluation of composite materials .

将声发射Kaiser效应测量结果与水压致裂法的测量结果进行对比，二者具有很好的一致性。

Comparing the result of AE Kaiser effect tests with hydrofracturing shows that they are consistent fundamentally .

相对较大的声发射，每个时期每个区域均有发生，但C区即最后发生地相对集中，该处岩桥区断裂后试样崩溃。

In each stage , relatively large AE events occurred in each zone , but they concentrated relatively in zone C where they finally occur , and the sample ruptured finally when rock bridges in zone C broke down .

第一组实验探究塑性成形中的摩擦声发射信号是否存在Kaiser效应。

One experiment explored whether the Kaiser effect would exist in the friction of the plastic deformation course .

岩体声发射监测技术已广泛应用于采场稳定性研究中，文中提出了能进行科学预报的灰色GM（1.1）模型。

The monitoring technique of rock mass acoustic emission is of wide use in the stope stability . A grey model GM ( 1.1 ) for scientific forecasting was presented in this paper .

方法在实验动物被处死前，检测其畸变产物耳声发射（DPOAE）幅值变化。

Methods The amplitudes of distortion product otoacoustic emission ( DPOAE ) were measured before all the animals were killed .

测定21例（42耳）慢性肾功能衰竭（CRF）患者的畸变产物耳声发射（DPOAE）。

Distortion product otoacoustic emissions ( DPOAE ) and pure tone audiometry were tested in 21 patients with chronic renal failure ( CRF ) .