综合布线系统（十）：第十讲综合布线系统的工程验收和管理

主要介绍综合面线系统工程验收的依据和项目内容,包括测试仪表和测试方法;如何编制工程竣工技术文件和进行工程管理。最后对这一讲座内容作了简要的总结。     

可靠性试验新技术——MEOST

工业技术的飞速发展对产品的可靠性提出了越来越高的要求,引进并应用测试产品可靠性的先进技术势在必行。该文对多环境强化应力试验技术——MEOST进行了简述,包括MEOST技术的实施原则、准备工作和实施过程,分析了它的优越性。     

超声扫描技术及设备

描述了电子工业日益盛行时代的超声扫描技术.通过超声扫描使电子封装产品的无损检测有了新的突破.主要介绍了超声扫描所面临的挑战及相应的检测设备.     

相控阵天线自动测试系统设计

通过深入分析相控阵天线自动测试系统的工程需求,提出了一种适用于多状态、大数据量测试与处理的自动化测试系统实现方法。本方法采用搭建硬件测试平台,基于VB、MATLAB开发的软件实现方法,实现自动高效测试。该自动测试系统与人工测试及数据处理相比,极大提升了测试效率及数据处理速度,并已成功应用于某相控阵天线批量测试及数据处理中。     

Solitary waves for Non-Destructive Testing applications: Delayed nonlinear time reversal signal processing optimization

An original signal processing method called delayed Time Reversal-Nonlinear Elastic Wave Spectroscopy is introduced in the present paper. The method could be used to amplify signal in certain regions of the material under Non Destructive Testing. It allows to optimize and change the shape of the received focused wave in the material, either by making the focusing sharper by decreasing the side lobes or making it wider by modifying the actual focusing peak. It is also possible to use the focused signal as a delta-basis to construct a signal with arbitrary envelope or reduce the side lobes of the focused signal. These concepts are shown to work well in the simulations and the physical experiments. This signal processing method is particularly promising for nonlinear and solitary wave analysis, since it allows to create an interaction of sharp and solitary wave peaks just underneath the receiving transducer. Due to simple and accurate linear prediction of the received interaction signal, any differences of measurements and predictions could indicate the presence of nonlinearities.     

Relative sensitization efficiency of fluorescent probes/sensitizers for monitoring and acceleration of cationic photopolymerization of monomers

The performance of a series of 1-amino-2,6-dicyano-3,5-diphenylbenzene derivatives (i.e., meta-terphenyls) as fluorescent molecular probes for monitoring cationic photopolymerization of monomers by the Fluorescence Probe Technique (FPT) was studied. It was found that the m-terphenyls accelerate the cationic photopolymerization initiated with diphenyliodonium photoinitiators at the wavelength where the photoinitiator alone does not work. Consequently, application of the m-terphenyls in a dual role: (a) as fluorescent probes for monitoring the cationic polymerization progress, and (b) as long-wavelength sensitizers for diphenyliodonium photoinitiators is proposed. Next, a precise method for determination of relative sensitization efficiency of the sensitizers has been devised and applied for evaluation of the performance of the m-terphenyl sensitizers in comparison to that of a commercial sensitizer: 2,4-diethyl-9H-thioxanthen-9-one.     

EMI测试中几种测试参数选择问题的探讨

本文讨论电磁干扰自动测试系统中接收机带宽、检波器功能、步进衰减器的选择.最后提出了测试规则.     

The role of Nordtest in testing and quality assurance

 This article describes on the idea behind Nordtest, the results of its activities and how Nordtest has influenced testing and quality assurance. By financing projects in the field of technical testing Nordtest has been able to utilise the best available Nordic knowledge and resources to respond to Nordic needs and has gained acceptance in all Nordic countries. During Nordtest's 25 years of operation its projects have resulted in over 500 test methods and over 350 technical reports that are widely used both within and outside the Nordic countries. Examples of some project results are given. Important issues in testing and quality assurance are expressed in Nordtest position papers. Nordtest's active participation in the European and global co-operation in testing and quality assurance is also described.     

湿度传感器在环境试验设备中的应用

本文简要介绍了湿度传感器的工作原理及特点、湿度传感器的校准及其在环境试验设备中使用的优点及局限性；同时也介绍了干湿球温度计测湿的原理，最后作者提出了自己的一些看法。     

Model-based measurement uncertainty evaluation,with applications in testing

Basic concepts and implementations of the model-based approach to uncertainty evaluation are discussed. One implementation is that of the law of propagation of uncertainty with the use of the central limit theorem as recommended in the Guide to the expression of uncertainty in measurement (GUM). Another is the propagation of distributions, the subject of a supplemental guide to the GUM, which is at an advanced stage of development. It falls in the category of other analytical and numerical methods indicated in the GUM. Two testing applications are used to illustrate the principles: tennis-ball rebound and tensile strength.