故障信号

分析了声发射技术应用于离心泵故障诊断的可行性，并采用特征参量法对离心泵的故障信号进行了分析，并选取三个特征参量作为离心泵故障诊断的标准。

The applied feasibility of the AE ( acoustic emission ) technology in the field of fault diagnosis on centrifugal pump is analyzed . The method of characteristic parameter is employed to analyze the fault signaling of centrifugal pump and three characteristic parameters are selected as standard of fault diagnosis .

BP噪声抵消网络在发动机故障信号的应用

Application of Back Propagation Network for Self-adapting Noise Elimination in the Fault Singal of Engine

Kalman滤波在机械故障信号预处理中的应用

The Application of Kalman Filter on the Processing of Mechanical Fault Signals

应用小波包结合FFT方法检测转子断条故障信号

Method of Wavelet Packets and FFT to Detect the Broken Bars Fault Signal of Motor

在介绍小波变换信号奇异性检测原理的基础上，对电力电子系统奇异性故障信号使用Matlab进行仿真。

The signal singularity is analyzed by Matlab emulation of application in fault diagnosis of the electrical and electronic system based on wavelet transformation .

基于WinSock的电机故障信号采集与远程传输

The electromotor signal collection and transmission system based on WinSock technology

概率盒和D-S结构体在机械故障信号信息融合中的应用展望

Prospect of Probability Box and D-S Structure 's Application in Mechanical Fault Information Fusion

智能功率模块IPM故障信号的处理方法

Processing of Fault Signals for Intelligent Power Modules

基于Morlet小波的滚动轴承故障信号奇异性分析

Analysis on Singularity of Fault Signals of Rolling Bearing Based on Morlet Wavelet

Morlet小波对于压缩机故障信号的研究

Study on Fault Signal of Compressor with Morlet Wavelet

采用基于Stein无偏似然估计自适应阈值选择原理的实用消噪方法对故障信号进行预处理，在改善信噪比的同时，又提高了对突变信息的分辨率。

The stein self-adapting threshold denoising method is used to the signal pretreatment , thus the SNR and resolution are improved .

powerfail：只在init收到电源故障信号时执行命令。

Powerfail : Only execute the command if init receives a power fail signal .

首先，引入一个参考模型，形成广义残差系统，以此广义残差信号对扰动信号及其故障信号L2的增益来体现其对扰动的鲁棒性和对故障的灵敏性；

The reference model is introduced to formulate the generalized residual , and the robustness of residual to unknown inputs and the sensitivity to fault signal are reflected by an L_2-gain .

通过仿真试验和实际故障信号，比较短时傅立叶变换、小波变换、Wigner-Ville分布对非平稳信号的敏感性。

It was studied in practice of Short Time Fourier Transform ( STFT ), Wavelet Transform and Wigner-Ville distributing which is keenness to non-stationary signal .

文中还从器件参数选用、看门狗电路、数据存储安全、IO冗余设计及校验、上电输出控制、装置故障信号等多方面作了充分的考虑。

The paper also considers selection of components , watchdog circuits , data safety , redundancy design , checkout of I / O , control on power up and system fault .

为了消除或衰减加在机械故障信号上的有色高斯噪声，更好地对信号功率谱进行估计，提出了基于高阶统计量方法的ARMA模型功率谱估计方法。

In order to eliminate or attenuate the additive Gaussian colored noise in machine fault signals and obtain better power spectrum estimations , a method by using ARMA model based on higher-order cumulant for the data series is presented in the paper .

首先，采用经典的计算机模拟电路仿真软件&PSpice对电路进行仿真分析，利用PSpice的蒙特卡洛分析法分析得到容差之内的正常信号和容差之外的软故障信号，以此作为处理分析的对象。

Firstly , emulate the circuits with PSpice , which is a classical computer emulating software for the circuits . Analyze the normal signal and the soft trouble signal through the Mont Carlo method and make them the objects to be processed .

本文介绍了以TMS320VC5402为核心的系统的研制过程，主要包括：故障信号拾取和采集模块、信号分析处理模块、数据通信模块等三个模块的硬件电路设计和软件编程。

All processes of the development of the system , which is consists of three main modules : signal-gathering module , signal-processing module and data-communication module . We described the hardware-designing and software in this paper .

对DMX系列磁场断路器现场出现FMK分闸故障信号和合闸线圈烧毁的现象进行分析，提出改进方法。

Analyze the cause that the DMX series of magnetic field breaker sent the failure signal of tripping and the closing coil was burnt out . The improving way is put forward .

利用Kohonen网络聚类的特点，把汽轮机振动故障信号频谱中的相关频段上不同频率谱的谱峰能量值作为故障信号的训练样本输入到Kohonen网络，并由网络进行聚类，产生聚类中心点。

With the feature of clustering in Kohonen Network , input the energy amplitudes of various of harmonic spectrums about signals of oscillation breakdowns in steam triblet to Kohonen Network as the training sample of breakdowns signals , and cluster by Kohonen Network , generating the clustering central points .

根据短时傅里叶变换的滤波器组实现原理，研究了不同窗函数实现的50Hz带通滤波器，分析比较了它们用于提取电力系统高压输电线路故障信号基频分量的能力。

According to the principle of filter banks of short time Fourier transform , various 50 Hz band pass filters modulated with different windows are studied , and their performances in extracting fundamental components among corrupted fault signals in HV transmission lines are compared .

基于小波包的机械故障信号消噪处理

De-noising of Sign in Machinery Fault Diagnosis Based on Wavelet Packet

低速滚动轴承故障信号捕捉与分离研究

Study on fault signal acquisition and separation for low-speed rolling bearing

基于动态小波变换的电力系统故障信号分析

Failure signal analysis in power systems based on dynamic wavelet transform

感应电动机故障信号处理方法的研究及软件实现

Study on Failure Signal Processing of Induction Motor and Software Realization

周期平稳类机械故障信号分析方法研究

Research on the Analysis Method of Cyclostationary Fault Signal of Machinery

大型电动机内部故障信号检测与保护

The Interior Faults Signal Detection and Protection of Large Induction Motors

基于希尔伯特-黄变换周期平稳类微弱故障信号检测

Detection of weak fault signal about cyclostationary by Hilbert-Huang transform

基于故障信号同步的配网差动保护技术

Differential Protection of Distribution Network Based on Fault Signal Synchronization

坦克发动机常见故障信号特征与诊断

Signal Characteristic and Diagnosis of Common Faults of Tank Engines