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- vibrating signal inspection 振动信号检测
- In the online detection and fault diagnosis for mechanical equipment, vibrating signal analysis is an important means. 在机械设备的在线检测和故障诊断中,振动信号分析是十分重要的手段。
- In the area with loose surface, the coupling problem between the vibroseis and the surface is the main factor for vibrating signal distortion. 摘要在疏松地表地区，可控震源及其与地表的耦合问题是引起振动信号畸变的主要因素。
- Finally,combining the characteristics of the vibrating signal of fan,research is carried out on the application of holo-spectrum in vibrating trouble diagnosis of fan. 最后结合风机振动信号的特点，对全息谱在风机振动故障诊断中的应用进行了研究。
- The eigenvector of the vibrating signal is rebuild by technology of wavelet package,It is valuable and effective to detect the ride quality of locomotive bogie. 提出利用小波包技术构造机车振动信息的特征向量,对检测机车的走行品质有一定的应用价值和现实意义。
- For the vibrating signal of the hydraulic turbine in unsteady-stage conditions, this method can decompose it in a limited time and frequency range, and keep the information completely. 该方法能够有效将水轮机非稳态工况下的振动信号很好地分解在有限的时间-尺度范围内而保持信号的信息完整；
- The power spectrum analysis technique and cepstrum analysis technique have been adopted separately to analysis the vibrating signal of the three typical faults of rolling bearing based on experiments. 本文结合实验对滚动轴承三种典型故障(内圈裂纹、外圈裂纹、滚动体裂纹)的振动信号进行了研究分析,分别应用了功率谱分析和倒频谱分析技术。
- Then, Local Wave method is introduced in consideration of the non-stationarity characteristic of the vibrating signals from NC machines. 针对数控机床机械系统的非线性和振动信号的非平稳特性,引入局域波分析方法。
- Abstract: The basic theory of wavelet analysis that applied to vibrational signal analysis is presented. 文摘:介绍用于振动信号分析的小波分析基本理论。
- The deconvolution between cylinder pressure signal and head bolt vibration signal was analyzed. 摘要研究了发动机气缸压力信号与表面振动响应信号之间的反卷积关系；
- The piecewise self-affine fractal model was explored for data coding and reconstruction of vibration signal. 提出了用于对振动信号进行编码及重构的分段自仿射模型。
- The lifting wavelet transform is used to construct wavelet to de-noise the vibration signal of turbo generator units. 针对电厂汽轮发电机组振动信号的噪声抑制问题,采用提升小波变换的方法构造小波。
- This model can realize the nonlinear mapping of vibration signal measured under the condition of a reciprocating pump. 使用小波包分析的特征提取功能以及神经网络的非线性映射功能能够较好地完成从振动信号到往复泵故障的分类。
- The basic theory of wavelet analysis that applied to vibrational signal analysis is presented. 介绍用于振动信号分析的小波分析基本理论。
- In order to effectively abate the noise of geared pump vibration signal, matching pursuit is introduced for de-noising. 摘要为了更有效地消除齿轮泵振动信号的噪声，引入匹配追踪消噪方法。
- In order to effectively abate the noise of geared pump vibration signal,matching pursuit is introduced for de-noising. 为了更有效地消除齿轮泵振动信号的噪声,引入匹配追踪消噪方法。
- A red light is usually a signal of danger. 红灯通常是危险的信号。
- The denoise of vibration signal in engine rotor system is proposed, which is based on signal blind separation. 本文根据信号分离理论研究了发动机转子系统振动信号的降噪问题。
- The main drive source and dissemination way of engine vibration baa been confirmed through analyzing the basic characteristics of engine vibration signal. 摘要通过对发动机振动信号基本特性的分析，确定了发动机振动的主要激励源和传播途径。
- Third, prove the original advantage of wavelet transform through the signal instance that while dealing with the vibration signal of the gear wheel. 第三，通过信号实例说明小波变换在处理齿轮振动信号时的独到优点。
