The BP neural network is used to fit data, through which quantitative analysis of defect signal can be obtained.
采用了BP神经网络对数据进行拟合，能够实现对裂纹信号的定量识别。
The linear and quantitative nondestructive test of the grain defect is realized by using time-frequency domain character of the ultrasonic defect signal.
利用超声缺陷信号的时频域特征，较好地实现了该类型药柱的线性定量无损检测。
The time frequency difference between grain noise and defect signal provide a possibility for enhancement of signal-to-noise ratio (SNR) in ultrasonic testing.
晶粒噪声和缺陷信号的时频特征的差异，为提高超声检测的信噪比提供了可能。
The selection of the testing parameters and the relations among them are analyzed and discussed. The methods of recognition, location and evaluation of the defect signal are proposed.
文中对检测参数的选取以及参数间的关系进行了分析和讨论，提出了对缺陷信号识别、缺陷定位和半定量计算的方法。
Being aim at pressure filter of TZJ96-3 type and GPJ96Z/3-C type, feed gate and proximity swith of collecting and controling its signal to be in position occurs as defect.
针对TZJ96-3和GPJ96Z/3-C型号的加压过滤机，排料闸板与采集并控制其开关到位信号的接近开关，在安装方式上存在设计缺陷。
In this method, the feedforward signal is obtained through establishing a reference model, so that the defect of traditional method can be avoided.
此方案以建立一个参考模型来得到前馈信号，从而避免了传统方案的缺点。
The morphology filter is used for the defect diagnosis of rolling bearings, extracting the impulsive signal from the initial vibration signal and demodulating the signals.
将形态滤波应用到滚动轴承缺陷诊断中，通过形态滤波将滚动轴承原始振动信号的脉冲信号提取出来，从而达到解调的效果。
In this method, exert a plurality of first test signals to the test wires, to check whether the first signal defect is produced.
在所述方法中，向所述测试线施加多个第一测试信号，以检查是否产生了第一信号缺陷。
The ultrasonic defect echo of a austenite stainless steel with coarse grainswas acqiuired and processed using a developed computerized ultrasonic signal analysissystem.
采用计算机化超声信号分析系统，对奥氏体不锈钢粗晶材料缺陷的超声回波信号进行采集和加工。
Experiments analysis show that the roller bearings vibration signal with normal, inner rings defect and outer rings defect are identified effectively.
试验和理论分析表明，利用该方法可以有效地将正常轴承和内滚道伤轴承、外滚道伤轴承的振动信号进行分离。
It can implement FPA data sample, data rearrange, nonuniformity correction, image enhancement, defect pixel automatic searching and compensation, video signal synthesizing and displaying, etc.
可以实时完成焦平面信号的数据采集、数据重排、非均匀性校正、图像增强、疵点自动查找和补偿以及视频合成显示等一系列功能。
The experimental results verify the relationship between the defect geometry parameters and the signal characteristics.
实验结果验证了缺陷特征与信号特征的关系。
When the first signal defect is produced, make the signal-exerting solder pad mutually short-circuit.
在产生第一信号缺陷时，使所述信号施加焊盘相互电短接。
When the first signal defect is produced, make the signal-exerting solder pad mutually short-circuit.
在产生第一信号缺陷时，使所述信号施加焊盘相互电短接。
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