查询词典 accuracy of measurement

The all measurement and inspection equipment is almost supplied including the verniers 、 depth meters 、 inside and outside diameter micrometers 、 tachometers 、 line hammers and welding angle meters etc measurement instrument and various special measurement tools 、 test fitting 、 pressure-test equipment such as ultrasonic thickness gauge 、 painting thickness gauge 、 XXG-3005 type industrial detector etc.

公司计量检测设备基本齐全，配有游标尺、深度尺、内外径千分尺、转速表、线锤、焊角规、温度计、露点仪等计量器具和造船必须的各种专用测量器具、试验装置、试压设备如超声波测厚仪、涂层测厚仪、 XXG-3005型工业探伤机等。

In order to reduce the measurement error of heat transfer in water and air side for finned-tube heat-exchanger as little as possible, and design a heat-exchanger test-board measurement system economically, based on the principle of test-board system error analyses and design, the equation of measurement error of heat transfer in air side and water side about orifice meter for the finned-tube heat-....

本研究在探讨影响政府机关导入资讯安全管理系统的因素，并设计及发展资讯安全管理系统的绩效衡量架构。研究方法采用文献回顾及专家问卷法进行资料搜集，并应用层级分析法进行评估指标及题项权重分析。研究发现导入资讯安全管理系统之影响因素中，以「获得上级授权程度、建立整体成员。。。。

First, based on the measurements of absorption cross-section, the absorption characters of the main polluted gases in flue gas were deeply studied, and found that SO_2、 NO、 NO_2、 NH_3 had a character of approximate periods absorption at some wave band, which is a good chance of a new measurement introduced. Secondly, the factors about absorption cross-section of the gases measured, which affect on the measurement precision of DOAS, is studied deeply. The influence of pressure and temperature on absorption cross-section was given special research, and the compensated measures were given to the gases based on the character of the gases. Thirdly, in practical measurement, it must have been satisfied that the monochromator was consisted with the reference spectrum, which was based on absorption cross-section. In order to satisfy the consistency, the technique of reversion in the image was introduced, the reversions of spectrums were realized with wiener filter and noise elimination based on wavelet transform.

首先从吸收截面的测量入手，对烟气中主要的污染气体SO_2、NO、NO_2、NH_3的吸收特性进行详细研究，发现这些气体在局部区域具有准周期吸收特征，这为引入新的测量方法提供了契机；其次，对决定DOAS测量精度的被测气体吸收截面的诸多问题进行了深入研究，重点研究了压力、温度对被测气体吸收截面的影响，并针对被测气体的特征提出了相应的修正措施；再次，在实际测量中，要求所使用的光谱仪必须与以吸收截面为基础的参考光谱相匹配，为了满足匹配这一条件，文中将图像复原技术引入到光谱复原，使用维纳滤波和小波消噪实现了光谱的复原，将复原后的光谱与所使用光谱仪的仪器函数卷积，即可实现；最后，在对DOAS测量原理详细分析的基础上，对传统的最小二乘—差分吸收光谱法进行了详细的阐述，通过实验证实两点：1。

Orthogonally linearly-polarized lasers and its new applications in precision measurement are presented, including: 1 orthogonally linearly-polarized lasers, 2 principle for laser nanometer ruler (displacement sensor based on the competition between two polarized lights of the frequency splitting lasers), 3 principle for phase retardation measurement using frequency splitting technology, 4 principle for phase retardation measurement based on laser feedback effects.

介绍了正交线偏振激光器及其在精密测量中的新应用，包括：1 正交偏振双频激光器，2 纳米激光测尺(基于频率分裂的激光器两偏振光竞争位移传感器)测量原理，3 直接利用波片形成频率分裂的波片位相延迟测量原理，4 激光回馈波片位相延迟测量原理。

The six groups within Enraf are: Enraf Terminal Automation (precision measurement systems and software for tank storage companies), Enraf Calibron Systems (small volume provers and liquid density meters), Enraf Contrec Ltd.(fuel Management Systems used by the petrochemical industry at bulk tank storage sites), Enraf Fluid Technology (custom-engineered explosion-proof precision blending and additive metering equipment), Enraf Marine Systems (level measurement systems for marine applications) and Enraf Tanksystem SA (mobile precision level measurement systems used on board ships).

Enraf控股的六个集团为： Enraf 终端自动化（用于油罐存储公司的精密测量系统和软件）、 Enraf Calibron系统（小量校准仪和液体密度仪）、Enraf Contrec公司（用于石化工业大量油罐存储场的燃料管理系统）、Enraf 射流技术（工程定制防爆精密混合和添加计量设备）、Enraf 航海系统（航海应用的水平面测量系统）以及Enraf Tanksystem SA（用于船上的移动精密水平面测量系统）。

Since the station construction, the substation always persisted serves wholeheartedly, persisted provides the high-quality service for the user , carries out the national measurement law, the laws and regulations, improves the personnel quality, technical ability and the management level unceasingly, has completed the track scale measurement examination task well, developed for the national economic construction and the enterprise has made the contribution. In 2005 the substation accepted Country Quality surveillance Examination Quarantine Bureau to 《 Legal Measurement Verfication Inspection of examining regulation Standard 》—JJF1069—2003, Establish the system quality control, guarantee vaiue of quantity hierarchy reliable and accurate, guaranch turn round better.

建站以来，分站始终坚持竭诚服务、确保量值的质量方针，坚持为用户提供优质服务的宗旨，贯彻执行国家计量法律、法规，不断提高人员素质、技术能力和管理水平，较好地完成了轨道衡计量检定任务，为国家经济建设和企业发展作出了贡献。2005年分站接受国家质量监督检验检疫总局按照JJF1069—2003《法定计量检定机构考核规范》考核，建立了质量管理体系，保证了检定量值准确可靠，分站工作运转正常。

Firstly, we discussed measurement technology of ferroelectric hysteresis and field induced strain on theory of ferroelectrics, results of measurement and design of simultaneous measurement system in detail.

首先，本文从理论前提、结果分析和系统设计三个方面，对电滞回线和电致应变的测量技术进行了深入而全面的讨论。

The standardized, modular, integrated, networked nature must be the latest development trend of todays testing and measurement system. In traditional measurement system, the architectures are overcomplicated, the functionalities are not opened, and the resources are not shared. Virtual instrumentation and networked measurement provide the best solutions to these problems above.

测试系统正朝着标准化、模块化、集成化和网络化的方向发展，传统测试系统中存在结构复杂、功能不开放、数据不能共享的问题，虚拟仪器和网络化测试概念的提出为解决这些问题提供了可能性。

In this paper, the factor of affecting tracking precision of TV photoelectric theodolites is analysed in the theory. The standard uncertainty about the present measurement method of the key component is analysed. The higher precision measurement method and dynamic measurement method about each key component are brought forward.

本论文主要针对影响电视光电经纬仪跟踪精度的因素进行理论分析，并对各关键单元目前的检测方法进行不确定度分析，提出各关键单元的更高精度的检测方法及动态精度测试方法。

Experimental accuracy and repetition of FBG temperature sensitivity and compensation were discussed.have selected several materials which has bigger coefficient of expansion to do packaging components, have made many temperature experiments, there have not flaws, such as aging, crackle, absciss layer, packaging materials have good temperature sensitivity and compatibility with optical fiber;have designed the simple and practical packaging components, have performed a serials of experiments about accuracy and repetition of FBG wave-length, have obtained the first step conclusion;have analyzed the result and made comparison between the result of different experiment, have summarized the best packaging effect and several rules to reduce mistskes.

本文所做的主要工作包括以下几个内容：一、选取了常见的热膨胀系数大的材料制作封装元件，经过多次一80℃到80℃反复测试，封装元件没有出现老化开裂、封装裂纹、空洞、离层等缺陷，封装材料具有良好的温敏稳定性及复用性，与光纤相容性较好；二、对光纤光栅进行简单、实用的封装处理，就封装效果的优劣性、波长测量的准确度、重复性和封装时产生的波长损失等方面进行了一系列的实验，得出了初步的结论；三、对温敏和温度补偿式封装的实验数据进行了详细的分析和对比，从数字上对温变过程中光纤光栅中心波长的改变及温变曲线进行了定量的分析，在大量实验数据分析结果的基础上，总结出哪种材料封装效果更好，以及如何有效的减小实验误差。

He ignored his father's injunction that he be silent.

他不理睬父亲要他沉默的命令。

Subsequent access to any data that was written to disk results in additional cache misses.

当用户再次访问被写入磁盘的数据块时，又将发生缓存失效。