故障检测

Design for Testability; test selection ; boolean logic ; fault detection ; fault isolation

测试性设计；测试选择；布尔逻辑；故障检测；故障隔离

At present, the locomotive detection equipment is devoid, consociate locomotive model and application condition of auto detection technique on the locomotive detection field, develop the locomotive electric circuit intelligent detector which is suited for most locomotives.

在目前我国机车故障检测设备比较少的情况下，结合我国机车的型号和自动检测技术在机车检测领域中的实际应用状况，研制了适合大多数机车型号的电线路智能检测仪。

To detect cooling water system,a method based on wavelet forecast for sensor fault diagnosis is proposed.

以船舶冷却水系统传感器故障检测问题为目标，提出了基于小波神经网络预测器的传感器故障诊断方法。

I}o address the highly dynamic characteristics of system nodes, a self-tuning heartbeat fault detection algorithm, which can combine heartbeat strategy with unbiased grey prediction model, was designed to improve the fault detection duality of system according to the application needs and network environment changes.

它结合心跳策略和无偏灰色预测模型，根据应用需求和网络环境的变化动态地改变检测的质量，在保持一定检测时间的前提下，提高了故障检测的精度。

Liquid propellant rocket engine ; Fault detection ; Fault diagnosis ; Monitoring system

液体推进剂火箭发动机；故障检测；故障诊断；监控系统

Liquid rocket propulsion ; Fault detection ; Fault diagnosis ; Review

液体火箭推进；故障检测；故障诊断；述评

Impacts of varying stress on unit in low temperature, reason and harm of losing oil and slugging, and reaction to slugging for different types of compressors are analyzed. The fault cause is understood. Exact improving measures for unit and methods of faults detection are given, which solve the problem of compressor running fault in some degree.

分析了低温环境下交变应力对机组的影响、失油和液击产生的原因和危害及不同类型压缩机对液击的反应，了解了故障产生的根源，给出了改进热泵机组的具体措施及现有机组的故障检测方法，认为这样可以在很大程度上解决压缩机运行故障问题。

In this method,fault detection is based on functional test for circuit boards, and fault isolation is based on the com- parison of actual response and expected response on correlative nodes,Besides, the aproach of building diag- nostic database and hardware composition of test system is introduced,According to this method,a practical test system has been made successfully.it can isolate 80% faults to nodes.

在该方法中，故障检测是基于对电路板的功能测试，故障隔离是基于相关节点的实际响应和预期响应的比较，此外还介绍了诊断数据库的建立方法以及测试系统的硬件组成。根据这一方法已研制成功一个实用测试系统，它能把80％故障隔离到节点。

Based on the analysis of characteristics of two classes of technical process fault and defects of two familiar fault detection and diagnosis methods , this paper introduced an early fault detection and diagnosis method for technical process.

在分析了生产过程两类故障的特点和常规故障诊断方法的缺陷的基础上，提出了生产过程早期故障检测与诊断方法。

ABSTRACT :Based on the analysis of characteristics of two classes of technical process fault and defects of two familiar fault detection and diagnosis methods , this paper introduced an early fault detection and diagnosis method for technical process.

在分析了生产过程两类故障的特点和常规故障诊断方法的缺陷的基础上，提出了生产过程早期故障检测与诊断方法。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。