故障测试

The basic theory of the algorithm for test pattern generation using satisfiability is explored, including represent method of SAT-ATPG, search algorithm and analyses of achievement techniques. We describe how to represent circuits and fault detection problem as Conjunctive Normal Form . We improve an effient search algorithm suited to ATPG based on basic satisfiability algorithm.

本文研究了组合逻辑电路测试向量自动生成的可满足性方法，主要进行了可满足性的测试生成原理、实现算法、性能提高和测试向量的最大压缩等方面的研究，改进了一种有效的测试生成搜索算法SAT-ATPG，提出了隐含多路敏化的故障效应单路定向传播方法SOPCA、控制输入跟踪算法CIT和测试衍生算法TD，取得了较显著的效果。

Features Internet Updateable (with purchase of CP9137)- Trilingual Display Screen - Displays freeze frame data (snapshot of the operating conditions at the time of the fault)- Review data off-vehicle - Battery Powered - Reads and erases Diagnostic Trouble Codes and turns off check engine light - Retrieves all Generic OBD II trouble codes (P0), their definitions and pending codes - Enables user to quickly and easily link to their vehicle - Large easy-to-read LCD screen provides the Diagnostic Trouble Codes and their descriptions - Extremely user friendly menu provides:- Monitor Status and I/M Readiness to determine if vehicle is ready for an emissions test.

特点互联网更新（购买cp9137 ）-三种语言显示屏幕-显示器冻结帧数据（快照的操作条件，在时间的断层）-审查数据越野车-电池供电-内容和泯灭诊断故障码和关闭检查发动机轻-返回所有的通用的o bd二故障码（ p 0），其定义和解释，有待码-使用户能够迅速，轻松地链接到自己的汽车-大型易于阅读的液晶显示屏幕提供诊断故障码及其说明-非常方便用户菜单规定：-监察地位和我/米准备，以确定如果汽车已经准备好了排放测试。

Breakdown disposes finish, After this will send to K'ao machine by special test engineer test machine whether stability, Breakdown whether has already got complete obviation.

故障处理完毕，接下来会送到拷机处由专门的测试工程师测试机器是否稳定、故障是否已得到彻底排除。

In this flow a tradeoff of multiple test methods is adopted, which includes structural test, functional test and parametric test. Using the test mode of"stop as finding the fault"and based on the position of the first failure, we can label the faulty chips into different bins.

该流程综合采用结构测试、功能测试、参数测试等测试方法，采取"发现故障即停止"的测试方式，根据芯片首次失效的位置对失效芯片进行Bin的分类，有效增强了分析的针对性，缩短了测试时间。

This paper presents the methods of testing and analysis and preventability of several typical faults ,and the importance of primary resistance measurement,chromatogram analysis and dielectric loss test in overheat,damping and department charge of capacitive current transformer.

提出了对这几种典型故障进行试验、分析、预防及解决的方法，以及一次直流电阻测试、色谱分析、介损测试在电容型电流互感器的过热、受潮、局部放电等故障分析中的重要性。

Based on the dependencies between failure sources and available tests at different mode,combined with the prior probability of failure sources,the cost of tests and of mode changing,a mathematic model on this problem is constructed.

基于不同模式下测试与故障之间的依赖关系，结合系统故障的先验概率、可用测试的成本以及不同模式的转换费用，构造了该问题的数学描述模型。

This device consists of three elements, a high voltage generator, a signal sampling element and a panel operation element.

通过对模拟故障和现场实际故障的多次测试表明，基于直流电阻法所研制的电力电缆护层故障测试仪在功能和技术指标上均达到了设计要求。

With fault signals of vibration tested in practice, this paper takes frequency-domain half-power bandwidth Gauss wavelets of continuity, index wavelets decomposition and equivalent bandwidth equivalent sampling discrete bi-orthogonal wavelets decomposition as basis, presents scaling correlated analysis correspondingly toward wave making vibration signals, and accurately realizes to decompose different stress wave speeds, and provides a method of analysis and calculation for accurated location and recognition of the polygenetic faults.

根据上述故障力学模型，我们提出并设计了相应的测试系统，对实测的故障振动信号，以频域半功率带宽连续高斯小波、指数小波分解和等带宽等采样离散双正交小波分解为基础，提出了相应的对波致振动信号的尺度相关分析，准确地实现了分离不同的应力波速，为多源故障的精确定位识别提供了分析和计算方法。

Measured structural noise and air-borne noise of the model under different condition, as well as picked up and analyze the vibration signal.

6对实验样机进行了不同工况下的结构噪声和空气噪声动态测试，同时进行了该实验样机的故障振动测试，采集了减速器的振动信号，并对故障信号进行了分析。

In order to realize, the integrated testing of dynamic parameters, real-time and in-system inspection, and diagnoses of fault of engine, at the same time considering the universal and specific performance, a new-fashion real-time testing system design for the integrated parameters of engineer is proposed based on the technology of parallel procession of multi-DSP and virtual instrument.

为了实现发动机动态参数的综合测试、实时在线检测和故障诊断，综合考虑其通用性和专用性，提出了一种基于多DSP并行处理和虚拟仪器技术的新型发动机综合参数实时测试系统设计，重点阐述了系统的硬件结构和软件框架设计，并对系统实时、远程故障诊断进行了探讨。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。