本文提出了用主成分分析法(PCA)进行空调系统传感器故障检测与诊断的基本思想。
This thesis presents principal component analysis (PCA) approach for sensor fault detection, identification and reconstruction in HVAC system.
本文提出了故障检测与分离的广义一致性算子法的一般形式。
This paper presents a general form of the generalized parity-operators approach to failure detection and isolation.
飞机舵机系统的机械故障可用解析余度法检测。
Aircraft actuator system failure can be detected by analytic redundancy analysis.
对目前配网采用信号注入法检测单相接地故障的原理进行比较分析。
The principles of using signal injection method to detect single-phase earth fault of distribution network at present are compared and analyzed.
联机工作情况下对半导体随机存贮器的故障检测和诊断与一般的图案敏化法有显著的不同。
The method of testing semiconductor RAM in processes on-line condition is highly different from conventional pattern sensitive method.
应用频谱法对航空直流起动发电机发电状态进行故障检测与诊断。
This paper discusses the fault detection and diagnosis of Aero-Starter-Generator.
结果表明主成分分析法具有很好的故障检测和故障诊断能力。
The results show that the PCA method has good performance in fault detection and diagnosis.
分析了基于卡尔曼滤波器的残差检验法对传感器缓变故障检测的不敏感性原因。
The reason that the residual test method based on Kalman filter is insensitive to sensor soft fault detection is analyzed.
实验表明，小波滤波法能提高小故障的检测能力，而且与指数权重滑动平均滤波法相比更具有故障检测的及时性。
Experiments show that wavelet filtering can enhance the small fault detection capacity and detect more timely compared with exponentially weighted moving average (EWMA) filter.
在对设备进行状态监测时，常采用传感器固定阈值检测法实现对设备的故障监测。
The method of sensor threshold is often adopted to realize the equipment fault monitoring.
在逻辑门电路测试技术中，可以在泛序测试法基础上建立故障诊断树，用于完成单电路故障的检测与定位诊断。
In the technologys of logic circuit test, we can use diagnosis tree to finish the test of logic element fault.
着重介绍振动检测法的原理、方法及其在螺杆泵故障诊断中的应用。
This paper introduces mainly the principle, measures and application of vibrating test, especially in diagnosis of bolt-pump fault.
为对变压器铁心发生的多点接地故障进行准确定位提出了高频法和行波法两种检测方法，并对它们进行了较为详细的分析和比较。
To solve the problem of locating the multipoint earthing of the transformer core, two novel methods, named as high-frequency method and travelling-wave method, are analyzed and compared in detail.
试验结果表明，将AE诊断法用于检测铁路货车滚动轴承故障具有一定的可行性。
The testing result shows that it has certain feasibility to inspect the troubles in railway freight car rolling bearings with the AE diagnostic method.
从残差中提取故障信息，实现推力器故障的检测与分离。提出采用模糊诊断方法分析残差信号，克服了阈值判断法误报率高的弱点。
Fault information was obtained by analyzing residuals with fuzzy residual evaluation, which overcome a high rate of misinformation associated with the threshold evaluation method.
利用微型继电器接点切换检测法等方法研制了镉镍蓄电池故障检测仪，对直流系统实施在线检测。
Making use of micro-relay contacts transfer detection, technique we developed a cadmium-nickel storage batter fault detector.
目前，汽轮发电机转子绕组匝间短路故障的检测方法有很多，其中探测线圈法是有效且常用的一种。
At present there are many methods to detect the inter-turn shorted-circuit fault of turbo-generator rotor windings. The air-gap detection coil monitoring method is effective and used widely.
通过对滚动轴承具有外圈缺陷、内圈缺陷的情况下振动信号的分析 ，说明时间 -小波能量谱自相关分析法不仅能检测到滚动轴承故障的存在 ，而且能有效地识别滚动轴承的故障模式。
By analyzing vibration signal of roller bearing with out_race fault or inner_race fault, it is confirmed that the faults can be detected and fault patterns can be ide…
通过对滚动轴承具有外圈缺陷、内圈缺陷的情况下振动信号的分析 ，说明时间 -小波能量谱自相关分析法不仅能检测到滚动轴承故障的存在 ，而且能有效地识别滚动轴承的故障模式。
By analyzing vibration signal of roller bearing with out_race fault or inner_race fault, it is confirmed that the faults can be detected and fault patterns can be ide…
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