滚动轴承接触角智能测量仪

基于角接触球轴承运动学关系,本文给出了接触角测量原理,介绍了单片机轴承接触角测量仪的结构及软、硬件设计方法。该测量仪的研制为角接触球轴承的生产、选配和使用提供了重要的检测手段。     

Implementing ATML in Distributed ATS for SG-Ⅲ Prototype

With the forthcoming large-scale scientific experimental systems, we are looking for ways to construct an open, distributed architecture within the new and the existing automatic test systems. The new standard of Automatic Test Markup Language meets our demand for data exchange for this architecture through defining the test routines and resultant data in the XML format. This paper introduces the concept of ATML（Automatic Test Markup Language） and related standards, and the significance of these new standards for a distributed automatic test system. It also describes the implementation of ATML through the integration of this technology among the existing and new test systems.     

Rater reliability and concurrent validity of the Keyboard Personal Computer Style instrument (K-PeCS)

This paper describes the inter-rater and intra-rater reliability, and the concurrent validity of an observational instrument, the Keyboard Personal Computer Style instrument (K-PeCS), which assesses stereotypical postures and movements associated with computer keyboard use. Three trained raters independently rated the video clips of 45 computer keyboard users to ascertain inter-rater reliability, and then re-rated a sub-sample of 15 video clips to ascertain intra-rater reliability. Concurrent validity was assessed by comparing the ratings obtained using the K-PeCS to scores developed from a 3D motion analysis system. The overall K-PeCS had excellent reliability [inter-rater: intra-class correlation coefficients (ICC)=.90; intra-rater: ICC=.92]. Most individual items on the K-PeCS had from good to excellent reliability, although six items fell below ICC=.75. Those K-PeCS items that were assessed for concurrent validity compared favorably to the motion analysis data for all but two items. These results suggest that most items on the K-PeCS can be used to reliably document computer keyboarding style.     

Kallina循环技术发电站中仪控岛的设计

针对卡琳娜(Kallina)循环发电站循环工质的独有特性,配套设计的控制解决方案由分布式控制系统(DCS)、SIL3认证的安全仪表系统(SIS)紧急停机系统以及现场仪表组成。通过合理的热控仪表选型及监控信号安全隔离设计,实现了对Kallina循环发电站控制设备的运行状态,以及对机组发电运行工况的所有参数和数据的准确采集和监控。综合利用先进的智能控制技术[3],对Kallina循环发电站的关键工艺参数进行准确调节,严谨编制机组保护跳机联锁控制逻辑、开机自动控制及并网后的自动调节程序,保证了Kallina循环发电站生产运行的安全性能,有效地提高了热能转换以及发电效率。Kallina循环发电站的成功投运及并网发电,验证了为其配套设计的仪控岛是一套安全、可靠、自动化程度高的智慧控制系统。     

仪用压缩空气SAR001MD涡轮流量计故障分析及处理

反应堆厂房入口仪用压缩空气流量计SAR001MD作为核电站重要监测仪表之一,流量数据的准确性关系到机组的安全运行。一旦出现故障必须予以高度重视,及时解决。某核电站CPR1000机组,在1号机组状态首次即将进入临界阶段时,出现SAR001MD流量计大幅度波动现象,导致安全壳泄漏率监测系统不可用,机组状态停滞。     

活塞综合检测仪的研制

介绍了活塞综合检测仪的功能、组成、检测过程、测量原理与方法和主要技术性能指标。该仪器是国内研制的第一台智能型活塞综合检测仪。实际应用表明,这是一台高精度、高稳定性和高效率的检测仪器。     

基于虚拟仪器技术的电力远动信道监控系统

为了保证远动信道的可靠运行,设计了基于虚拟仪器技术的多路电力远动信道监控系统。介绍了系统的硬件组成和特点;详细分析了远动信道主要参数的测量方法。分析了 LabVIEW 与 C 语言以及数据库的接口技术。虚拟仪器技术的采用,使监控系统不仅可以实现对信道参数的实时测量,而且还可以显示通道的时域波形、信号的频谱图,具有形象、直观等优点。     

基于LabVIEW的虚拟滤波器的设计

随着电子测试技术的不断发展,测试技术正向自动化、智能化、数字化和网络化的方向发展。其中数字滤波器作为测试技术的重要工具而被广泛使用在各个领域。本文设计的滤波器以LabVIEW软件为背景,设计一个能对采集数据波形进行相关处理,并实现相应的参数测量。虚拟滤波器主要包括五个模块：模拟信号的产生、波形的处理、信号的测量、波形的存储与回放、滤波后的波形保存。数据处理模块主要实现数字滤波和加窗函数处理两大功能,可以选择不同的滤波器和窗函数以适应不同的情况,参数的不同设置能够使信号频率不断变化。它是一种测试仪器和系统的概念相结合的软件,结合了测试技术和相应的专业知识。本文介绍了在LabVIEW实现虚拟滤波器测试信号的方法。     

新型电磁式电压互感器

介绍了一种新型电磁式电压互感器,阐述了电磁式和电容式电压互感器技术特性的区别.