机车车轮的在线故障检测对提高行车的安全性有重要的意义。
The on-line fault detection of locomotive wheel plays an important role in improving the safety of locomotive.
提出了一种具有建模不确定性的非线性系统在线故障检测方法。
A kind of on-line fault detection scheme in nonlinear systems with modeling uncertainty is presented.
该方法可应用到设备内部自测试中,并可完成周期信号的在线故障检测。
This method can be applied to the built in self test of equipment and accomplish on line fault detection of period signals.
采用了基于频谱分析理论的故障诊断技术对大型减速器进行了在线故障检测。
Applying the malfunction diagnosis technique based on the spectrum analysis theory, the paper makes online malfunction detection for the big-scale reducer.
通过研究网络流量异常检测,提出一种新的基于自适应自回归(aar)模型的在线故障检测算法。
A novel online fault detection algorithm based on adaptive auto-regressive (AAR) model is proposed focusing on the anomaly detection of network traffic.
公司历年记录的分析数据和目前的在线即时数据提供了进行比较计算的基础,使系统能够依据其算法检测到供水管网可能要出现的故障。
The firm analyses historical and online data to provide a basis for comparison, enabling its algorithms to detect things that are about to go wrong.
而且可对液压油进行定量的污染分析和评价,做到在线检测和故障预防。
And may to the hydraulic oil pollution of quantitative analysis and evaluation, do online testing and failure prevention.
为更及时准确地发现变压器故障,缩短检测周期,逐步实现变压器的状态检修,变压器油色谱的在线监测应用而生,并逐步得到推广应用。
In order to detect faults timely, decrease the testing period and reach the status maintenance, on-line monitoring of transformer oil chromatogram has been developed and spread gradually.
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 online detection and fault diagnosis for mechanical equipment, vibrating signal analysis is an important means.
采用电场分布测量的方法可对这类故障进行在线检测。
The fault can be on-line detected by measurement the electric field distribution along the composite insulator.
加上功能测试,这个过程中检测到的故障率要比单独进行在线测试故障发现率大。
And, when coupled with functional testing, the fault coverage for the entire process is as good as or better than in-circuit testing alone.
但由于工作环境恶劣,或者电机频繁起动等原因,转子导条经常会发生开焊和断裂等故障,因此有必要对电机进行转子断条在线检测。
But mechanical faults such as breakage of rotor bars often happen owing to various stresses. Therefore online detection on induction motors is necessary.
通过监测可测点工作电压利用所构建的故障阈值函数与故障判据来实现容差电路的故障在线检测。
By monitoring accessible node voltages, fault on-line detection is performed based on the proposed fault threshold function and fault criterion.
讨论了研究开发喷雾干燥塔喷管故障在线检测系统的市场潜力。
The market potential about researching on and making the system of on-line inspecting on spray drier's spray tube fault is discussed in this paper.
但是目前已有的大部分故障检测方法均假定网络诱导时延为常数或可以在线获取。
However, almost all the existing fault detection methods for NCS suppose that the network-induced delay is constant or can be gained online.
研究鼠笼型异步电动机转子断条故障和偏心故障的在线检测方法。
A method to detect squirrel cage induction motors with broken rotor bars and static eccentricity is presented.
本文所设计的XLPE电缆绝缘故障在线测量系统,遵循模块化、层次化,具有良好的可扩展性和小电流检测的参考作用。
The XLPE cable insulation fault on line monitoring system designed in this paper abides by modularization, hierarchical, having great scalability and small current measure reference function.
文章采用红外测温的方法对电主轴进行在线检测,建立温度模型,对电主轴温升及其故障进行预测和报警。
The objective of this research is to model and forecast the temperature of motorized spindle by on-line infrared thermometer.
然后在线路首端注入电流,通过探测器检验几个分支上是否有电流流过,检测到电流的即为故障点所在的分支。
After injecting current into the head of line, the detector can check whether these branches flow current, the fault branch is that the current has flowed.
该系统具有故障在线检测、故障自诊断和语音声光报警功能。可在线监测多达数十个点的过程或设备的运行状态。
The system has following functions: on-line fault detecting, fault self-diagnosing, light and speech sounds alarming, etc. It can detect as many as several dozen states of a process or an equipment.
局部放电在线检测可以及时反映电力设备绝缘老化情况,是状态监测和故障诊断的重要手段。
Partial discharge (PD) on-line detection can timely reflect the degradation degree of power apparatus, thus becoming a useful technique for condition monitoring and failure diagnosis.
配电线路单相接地故障的检测和定位是一个难题,要在线路上定位故障点更是困难。
Detecting and locating the single phase grounding fault of power distribution system is difficult, to locate fault in the circuitry is more difficult.
基于小波变换的分析方法,提出了基于定子三相电流之间相位对称度检测的定子绕组匝间短路故障在线检测新方法。
Based on wavelet transform, a novel on-line detection method is presented, which is based on the detection of symmetry degree among the stator three-phase line currents phases.
采用嵌入式单片机作为在线监控系统的核心芯片,设计了基于波峰检测的高速数据压缩的数据采集模块,捕获突发的故障波形。
The module with an embedded CPU has a data acquiring board based on detecting waveform peaks and high speed data compression for capturing the signal of the outburst failure.
实际使用证明该模型具有良好的收敛性和稳定性,完全能满足对气体传感器故障在线检测的需要。
Since the model is provided with good convergency and stability, it can meet the needs of the on2line detection of a gas sensor.
系统辨识是基于免疫RBF神经网络,用于故障检测的残差是通过对系统的模型输出与系统的实际输出的在线比较得到的。
The system identification is based on immune strategy RBFNN, and the residuals are generated by on-line comparing the system model outputs with the actual system outputs.
系统辨识基于免疫r BF神经网络,用于故障检测的残差是通过对系统的模型输出与系统的实际输出进行在线比较得到的。
The system identification was based on immune strategy RBFNN, and the residuals were generated by on-line comparing the system model outputs with the actual system ones.
设计的观测器不仅能实现故障检测,而且应用神经网络设计的故障估计器能在线估计系统中的故障向量。
The nonlinear observer can not only detect fault, but also realize the fault diagnosis. It is proved that the scheme has good robustness against modeling error and uncertainty.
最后,本文利用集成的硬件资源开发了VI曲线测试软件,该软件可实现对故障电路板在线检测,快速检测到电路板上的故障元器件。
In the end, software of VI curve test is developed after utilizing compositive hardware resource, which can be able to test diagnosis board in circuit and detect the fault units rapidly on the board.
最后,本文利用集成的硬件资源开发了VI曲线测试软件,该软件可实现对故障电路板在线检测,快速检测到电路板上的故障元器件。
In the end, software of VI curve test is developed after utilizing compositive hardware resource, which can be able to test diagnosis board in circuit and detect the fault units rapidly on the board.
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