用于压力表计量检测的快录电子原始记录方案

文章用实例展现了通过Excel快速录入压力表电子原始记录的方法,并提供了参考格式。方案中基于量程、分度值、准确度等级归纳表的Excel原始记录表格可依据不同量程和分度值自动填入标准值,并在准确度等级确定后将整数化序列转化为所需的全部示值和结果,与最大允许误差进行比较,得出结论。以键入一串简单的数字代替手写几十组四、五位数的数字,大大提高了输入效率,缩短时间,避免手写及计算错误,并且在符合相关规定的前提下体现了电子记录的优势。     

简介欧盟"非自动衡器指令"

欧共体非自动衡器指令９０／３８４／ＥＷＧ于１９９３年１月１日生效。指令分４章１６条 ,另有６个附件。４个章节的题目是 :１．非自动衡器具的使用范围 ,投入流通 ,自由的商品流通 ;２．合格确认 ;３．欧共体合格标志和标题 ;４．最后条款。附件１的内容 :在测量技术方面 ,对非自动衡器使用的单位制、准确度分级、误差范围作了规定。在设计与结构方面 ,主要提出了一般性要求 ,如８．２款指出 ,如果电子式天平受到干扰的影响 ,则不允许出现明显的故障或者仪器本身必须具有自我识别干扰的功能 ,并且能够发出预报。在自我识别明显的故障时 ,…     

EXCEL在三表数据修约处理中的应用

在三表检定工作中 ,对检定数据的处理一直是一个较复杂的问题 ,寻找一种方便、准确、快捷的数据处理方法非常重要。 MicrosoftExcel是一种有强大数据处理功能的电子表格软件 ,已经广泛应用于财务、统计和分析等领域。Excel以其公式化的表格数据处理功能 ,可完成对输入数据的自动比较、数据运算 ,并可利用其宏命令及窗体空件等工具实现自动测试 ,对数据进行录入、修约处理、存储查询和打印证书等。本文就对如何使用 Excel处理三表检定数据加以介绍。1 　 建立数据库及数据库表格使用 Excel可以将每一种型号的仪器建立一个工作簿文件。在这…     

佳能“自动侍者S”超级照相机

佳能“自动侍者Ｓ”超级照相机史焕佳能（Ｃｎｎｏｎ）“自动侍者Ｓ”超级照相机于１９９３年秋季上市．这是佳能公司推出的又一款设计新颖、性能卓越、操作简单的３５毫米镜头快门全自动照相机。该相机装备３５～１１５毫米Ｆ３·６～８．５的３倍变焦镜头，自动调焦，３...     

利用VB开发影剧院技术管理系统

开发影剧院技术管理数据库，能对影剧院的各个技术环节实行全面、高效、信息化的科学管理，具有重要的实用价值。本文介绍了采用Access和VB6．0开发影剧院技术管理系统的设计思想、系统结构及其实现方法。该系统能够实现管理信息录入、查询、修改、打印数据和表格的功能，以及管理图片、声音、影像等多媒体功能，进而实现信息动态发布的网络化功能。     

基于LabVIEW的光面环规检定记录生成系统设计

设计了一种检定记录生成系统。在检定光面环规时,瑞士Trimos公司的LABC NANO 600测长仪将生成独立检定记录,每份检定记录中只有部分数据需要进行汇总和记录。工作人员需要提取有效数据进行汇总与记录,重复劳动量较大。本文介绍的检定记录自动生成系统采用Lab VIEW作上位机,C语言为辅助编程语言,实现了对环规报告有效数据的提取以及自动录入光面环规检定记录。实验结果表明,可以可靠地实现自动录入数据,大大提高了工作效率。     

压力自动检定系统的开发与应用

文章介绍了一种由压力校验仪、压力模块、造压器、计算机等组成的压力自动检定系统。其工作原理是造压器将产生的压力同时传输给被检表和压力模块，压力模块将所受的压力值转成电信号送入压力校验仪，压力检验仪显示相应压力值。在WIN98操作系统下，用VB6．0、WORD等编制软件可实现数据的自动采集、记录，自动生成表格，自动误差计算，实现证书的自动打印。     

速录师—用手指赶超声音的行业

历史上，音像记录、手写速记曾是保留语音信息的主要方式，而电子速录则是手写速记在电子化、机械化方面的延伸，其录入速度和准确率远远优于手写速记，工作效率大大提高，因此，速录师被称作“金手指”。我国速录服务的业务主要集中在现场会议记录、法院庭审速录、网站访谈速录、媒体采访速录、录音（像）文字整理、电视剧字幕以及书刊杂志的录入排版等方面。现在大约还有70％的市场空间未得以开发。     

中国缩微系统有限公司（IMC国际资讯大会认可会员）

传统的模拟阅读复印机，速度慢、体积庞大。后来的数字化缩微阅读、复印、扫描仪，在传统的阅读机内加装CCD扫描头，复印或扫描存档时，CCD扫描头从上到下或从左到右扫描阅读机屏幕上的影像或阅读机内反射镜反射出来的影像，过程缓慢，同时体积庞大，用于35毫米缩微片时更是如此。     

面向工程图纸离线式表格信息提取与识别方法研究

工程图纸中标题栏与明细表信息是产品数据管理(PDM)系统的重要信息来源.为自动提取这些数据,实现CAD与PDM的无缝集成,提出了离线式自动提取表格信息的方法.通过分析工程图纸中表格结构的特点,提出了系统的工作原理、体系结构和工作流程,详细介绍了各功能模块和关键技术.进行了系统开发并应用在工程项目中.     

Insertion of triangulated surfaces into a meccano tetrahedral discretization by means of mesh refinement and optimization procedures

In this paper, we present a new method for inserting several triangulated surfaces into an existing tetrahedral mesh generated by the meccano method. The result is a conformal mesh where each inserted surface is approximated by a set of faces of the final tetrahedral mesh. First, the tetrahedral mesh is refined around the inserted surfaces to capture their geometric features. Second, each immersed surface is approximated by a set of faces from the tetrahedral mesh. Third, following a novel approach, the nodes of the approximated surfaces are mapped to the corresponding immersed surface. Fourth, we untangle and smooth the mesh by optimizing a regularized shape distortion measure for tetrahedral elements in which we move all the nodes of the mesh, restricting the movement of the edge and surface nodes along the corresponding entity they belong to. The refining process allows approximating the immersed surface for any initial meccano tetrahedral mesh. Moreover, the proposed projection method avoids computational expensive geometric projections. Finally, the applied simultaneous untangling and smoothing process delivers a high‐quality mesh and ensures that the immersed surfaces are interpolated. Several examples are presented to assess the properties of the proposed method.     

The Research of Anti-Wear Properties of Organomolybdenum Compounds in the Engine Oils

A four-ball tester was used to evaluate the anti-wear performance of three kinds of organomolybdemun compounds in the engine oils, i. e., molybdenum dialkyldithiophosphate (MoDDP), molybdenum dialkyldithiocarbamate ( MoDTC), and sulphur and phosphorus freeorganomolybdeum (Molybdate). The results indicate that a low concentration of MoDDP doesn' t improve the anti-wear properties of the commercial engine oils, but a high concentration of MoDDP can obviously improve the anti-wear properties and the load-carrying capacity of the engine oils. MoDTC doesn' t improve the antiwear properties of the engine oils, but worsens the anti-wear properties of the oils. Signifi can timprove ment of frictional and wear characteristics is obtained with Molybdate added in the commercial engine oils and the formulated oils.     

Certification Institutions Expected to Update and Transfer Information on Present Standards

Standards are the basis for production enterprises to organize production, ex-factory inspection, trade (delivery) and technical exchanges, product certification, quality arbitration and supervision.……     

Flow calorimeter for enthalpy increment measurements on condensed gases

A flow calorimeter for enthalpy increment measurements on condensed gases is presented. A better knowledge of the properties of the liquefied natural gas is needed, and therefore a liquid loop has been designed for our flow calorimeter. The fluid loop in the calorimeter is designed in order to avoid the two-phase region, since two phases would give compositional disturbances in the measurements. The avoidance of the two-phase region is made possible by increasing the pressure of the test fluid after the measurement section, then heating the fluid at super-critical pressure past the critical point. Finally, the fluid is throttled to the low-pressure gas state at the inlet condition of the compressor that circulates the fluid. To perform the pressure increase, a new cryogenic pump has been designed. To evaluate the new equipment, measurements were taken on liquid ethane over the temperature range 146–256 K at pressure between 0.9 and 5.1 MPa.     

Certification Becomes Important for the I Quality; and Safety Supervision of the Chinese Liquor Sector

The end of 2007, over 200 unit products of more than 80 Chinese firms have passed the quality grade certification for liquor products. These products involve distilled spirits, beer, wine, yellow wine, fruit syrup wine and others, and cover over 80% of the national top-branded liquor products.……     

Deposition and Coating Properties on CVD Tungsten

Surface characterization and microstructure studies are performed on chemical vapor deposited (CVD) tungsten coating. There is about 2 μm thickness diffusion layer of tungsten in the molybdenum substrate. The thermal shock test shows tungsten coating has good adhesion with molybdenum substrate, but the elements of oxygen and carbon in the tungsten coating have the bad affection to the adhesion. The result of high-temperature diffusion experiment is the diffusion rate from molybdenum substrate to tungsten coating is faster.     

Refrigerators Enter a New Era of Health Preservation Frestech initiates the establishment of China's first standard for household sterilization refrigerators

On November 30, 2007, the China Association for Standardization (CAS) held a press conference at Beijing Diaoyutai State Guest House. Leaders from the China Household Electric Appliance Research Institute, the China Household Electric Appliance Association, and the China Consumers' Association attended and made speeches.……     

Analysis of marine hydrobiont lipid extracts as possible cryoprotective agents

We studied a combined effect of the cryoprotectants both of lipid and carbohydrate origin at the presence of DMSO or without it on cell viability and the RNA synthesis in the embryonic mollusc and echinoderm cell cultures obtained at different developmental stages. Cryoprotective properties of exogenous lipids correlated with their thermotropic behavior. Lipid extracts from marine hydrobiontes, which thermal transitions are characterized by relatively small part of calorimetric thermogram area lying at temperatures above 0 °C (6–18%), were found to possess a considerable cryoprotective activity. The results are discussed in relation to the prediction of the cryoprotective activity of lipid extracts for marine animal cells. In addition, it was found that marine invertebrate cells can be cryopreserved without DMSO at the presence of trehalose and lipid extracts of some marine hydrobiontes.     

Low-Temperature Properties of Silver

Pure silver is used extensively in the preparation of high-temperature superconductor wires, tapes, films, and other configurations in which the silver not only shields the superconducting material from the surrounding materials, but also provides a degree of flexibility and strain relief, as well as stabilization and low-resistance electrical contact. Silver is relatively expensive, but at this stage of superconductor development, its unique combination of properties seems to offer the only reasonable means of achieving usable lengths of conductor. In this role, the low-temperature physical (electrical, thermal, magnetic, optical) and mechanical properties of the silver all become important. Here we present a collection of properties data extracted from the cryogenic literature and, to the extent possible, selected for reliability.