水表耐久性试验装置是用于进行水表耐久性试验的设备，耐久性试验旨在检验水表在使用一段时间后，能否保持其性能特征。浙江省计量科学研究院于2007年研制了水表耐久性试验装置，填补了国内空白，实现了水表检测技术与国际接轨。JJF 1435-2013《水表制造计量器具许可考核必备条件》指出，企业应具备相应的部件检测设备中就包括了耐久性试验装置，且所有检测设备均应有连续有效的检定/校准证书或检测报告。耐久性试验装置如何检测成为了一个急需解决的问题。

Particle materials are widely used in different fields such as medicine，construction，chemical and environmental protection, and the parameters of particle size，shape and distribution are closely related to the physical and chemical properties of particle materials. Particle testing technology is an important means to represent the parameters of particle. In recent years, the particle testing technology of different fields and principles has made new progress and obtained closely attention from various industries. This paper summarizes the development status of particle testing technology and its the latest application process in different fields. On the basis of this, the different trend of the particle testing technology is prospected, in order to provide appropriate reference for the application of particle testing technology in different fields.

JJF 1317-2011液相色谱-质谱联用仪校准规范仅给出了信噪比的不确定度评定示例，而现有文献关于液相色谱-质谱联用仪校准时质量准确性不确定度的评定相关研究较少。其中一个难点就是理论值引入的不确定度，文章介绍了一种理论值引入的不确定度评定方法，通过举例说明该方法的适用性。

：Thispaperintroducesthemethodofestimatingthesupplementarymaterialquantityofthesilobytheheightofthelevelmeter.ThismethodhasbeenappliedintheprojectofunmannedbeltproductioninAngangSteelGroup.Itsolvestheproblemofmateriallevelmonitoringandsupervisionofhighlevelsilointheproject.Thebulkmaterialfeedingsysteminthesteelmakingplantisresponsiblefortransportingrawmaterialsfromthelowlevelsilotothehighlevelsilo.Thehighlevelsiloundertakesthetaskoftimelyreplenishingrawmaterialsforconvertersteelmaking,soastoensurethatthesupplydoesnotaffectproductioninatimelymanner.Atpresent,themonitoringofthemateriallevelinthehigh-levelsiloandwhetherthefeedingsystemisstarteddependonmanualobservation.Thebadenvironmentonthesiteseriouslyaffectsthehealthoftheoperators.Inthispaper,theradarlevelmeterisusedtosolvetheproblemofhighlevelbin,realizereal-timemateriellevelmonitoring,real-timecalculationofsupplementarymaterialquantity,realizehighandlowlevelalarmandensurenomaterialemissionduringtheloadingprocess.Thecurvefittingmethodandthevolumeformulamethodareintroducedindetailtoestimatethesupplementquantityofthesilo.Thecomparisonexperimentshowsthatthecurvefittingmethodhashigheraccuracyandcanbettersolvethepracticalproblems.Throughtheresearchontheapplicationofradarlevelmeterandtheapplicationofthemathematicalruleofreplenishmentquantity,thisprojecthaslaidasolidfoundationforthesubsequentrealizationoffull-automaticloading.

文章通过对JJF1154-2014《四轮定位仪校准规范》的详细研究及现场试验，结合目前四轮定位仪校准装置在主销模拟、定位参数零位确定、现场安装等方面的不足，介绍一种四轮定位仪校准装置采用四轮分体、组合使用的结构，由步进电机作为角度驱动器，通过高精度双轴倾角仪及绝对角度编码器实现角度闭环系统控制。文章对该装置的结构设计及校准原理进行了深入阐述，以期为四轮定位仪校准技术发展起到些许参考。

In this paper, according to the composition structure and working principle of the IC on wafer test system, based on the developed IC fF-level on wafer small capacitance standard sample, a series of 10fF~500fF on wafer small capacitance standard sample is designed and prepared, which is in the leading level in China. In this paper, while effectively reducing the influence of cables and probes, a device for setting the chip capacitance at fF-level is developed, and the calibration method and uncertainty evaluation of the chip capacitance at fF-level are studied. This method can be used in the research and development of FinFET, GGAFET devices and carbon nanotubes of integrated circuits under 14nm, and ensure the accuracy and reliability of the chip capacitance of less than 1pF in the ultra-advanced process research and development.

电子计价秤在日常生活中被广泛使用,受利益驱动,常出现被改造软件、硬件的情况,从而实现作弊功能,损害消费者的合法权益。本文主要从软件、硬件两方面阐述所设计的电子计价秤作弊码检查装置,从而支撑行政查处和监管。

电流探头通过转移阻抗将骚扰电流转换成可方便测量的骚扰电压，准确校准转移阻抗为电磁兼容测量提供重要技术支持。本文对电流探头转移阻抗的校准进行了总结研究，应用该校准方法得到的校准结果与出厂指标基本一致，校准结果对电流探头的使用提供较为可靠的参考。

液压拉伸器作为一种高精度螺栓拧紧、拆卸工具，已经广泛应用在汽车、船舶、航空航天，能源、重型机械等各种领域中，而本文是对液压螺栓拉伸器的计量校准方法进行研究并通过各项实验进行验证。

Scraper flowmeter is a kind of dynamic measuring instrument widely used in the process of crude oil measurement and transfer. Its measurement performance, measurement accuracy, and instrument stability will directly affect the economic interests of both parties in crude oil trading. This paper sorts out the previous verifications of scraper flowmeters at a certain oil transportation terminal, draws a historical curve of verification errors based on the data, and analyzes the causes of errors that affect scraper flowmeters in terms of verification, daily operation, and routine maintenance, and conducts in-depth research on them. , Propose corresponding reasonable countermeasures to improve the measurement accuracy of the scraper flowmeter for the reasons of the error.

针对激波管校准装置中反射阶跃压力幅值溯源精度低的问题，提出一种基于模型修正的激波管反射阶跃压力幅值高精度溯源方法。根据理想气体理论，建立激波管反射阶跃压力幅值溯源的理论模型；分析入射激波速度的衰减规律，构建基于多传感器的入射激波速度多点测量方案；根据多点测量结果拟合入射激波速度的分布模型，实现入射激波速度衰减补偿，进而实现激波管反射阶跃压力溯源模型修正，提高阶跃压力幅值溯源精度。采用不同压力下的激波管实验验证反射阶跃压力幅值溯源的准确性，结果表明，本文方法的反射阶跃压力幅值溯源结果与实测结果的平均相对误差小于1%，其值大约为基于未修正模型的溯源结果平均相对误差的1/4倍。

科里奥利质量流量计广泛应用于油品贸易结算中，限于国内油流量检定装置较少，其检定通常采用水流量标准装置进行，为了研究科里奥利质量流量计在水、油介质下的计量性能异同，依托山东省计量院流量标准装置，选取DN50、DN100两个口径质量流量计进行水介质及油介质下的介质影响实验分析，分析表明在考虑不确定度等影响的因素下，两种介质对科里奥利质量流量计计量性能影响很小，体现了质量流量计介质不敏感的特性，为质量流量计的精确计量及油品贸易结算的公平公正提供技术支撑。

电磁流量计准确度等级高，重复性好，在工业应用中极为广泛，是计量技术机构日常检定最多的流量计之一。针对电磁流量计在检定过程中遇到的零点漂移、信号拾取与接地问题进行了总结与探讨，阐述了相应的解决方法，并在检定过程中验证了各方法的可行性与有效性。

介绍了基于临界流文丘里音速喷嘴法的移动式气体流量标准装置的基本构成、工作原理、不确定度评定及相关的实验应用。该类型标准装置的建成填补了国内通常作为固定式转化成移动式标准装置的空白，本装置具有整体扩展不确定度高、流量稳定性好、标准器检定周期长、动力系统小型化、可移动等特点。

An effective calibration method is proposed to carry out quantity traceability of the loss on ignition analyzer. Calibration items include weighing indication error and repeatability, temperature indication error and furnace temperature stability, loss on ignition indication error and repeatability. The test results show that the calibration method has strong operability and applicability, and can be further popularized and applied.

To solve the calibration problem of digital clock, the calibration methods and system were discussed. The calibration items of instant time offset, 1PPS time offset, frequency offset and daily time offset are given. Calibration method of instant time offset is described in detail. According to the instant time offset, the uncertainty of the instant time offset is evaluated, and the calibration software of instant time offset is written to automatically extract jump frames, calculate error and record data. The experimental results show that the expanded uncertainty of instant time offset is 1 ms (k = 2) while the resolution of standard digital clock is 1 ms.

With the vigorous development of Yunnan Pu-Er tea industry,the quality control of tea has been paid more and more attention, and the detection of heavy metals in tea is also a focus of attention. In this paper, five heavy metal component reference materials (Cr, Cu, Cd, As, Pb) in six Yunnan Pu'er teas from three places of origin were studied, combined with ten laboratories to carry out calibration， and their uncertainty was evaluated. The reference materials with good homogeneity and stability could be used for the inspection and detection of heavy metal components in the same matrix Pu-Er teas.

ByestablishingabigdataplatformforenergyconsumptionmonitoringcoveringthewholeregionofXinjiang,wecandynamicallygraspkeyinformationsuchasindustrialstructure,energyconsumptionandemissioncharacteristics,andexploretheestablishmentofmulti-dimensionalbigdataanalysismodelstoprovidetechnicaldataforXinjiang'seconomicdevelopment,energysavingandefficiencyimprovement,carbonreductionandenvironmentalprotectionpolicies,andpromotethegreenandlow-carbontransformationofXinjiang'seconomicandsocialdevelopment.

The large water flow standard facility is the core device for carrying out large pipe diameter flow meter test and ensuring the accuracy and reliability of traceability and transmission of large water flow value, and the measurement and control system is an important part of the flow standard facility. At present domestic specialized study of large water flow facility control system for less, the existing research results has far lags behind the water flow metrology technology present situation, and difficult to meet the society for large diameter flow meter automatic, intelligent and high accuracy calibration requirements. These problems in turn restrict the further popularization and application of large water flow standard facility. A control system suitable for the large water flow standard facility is designed and developed, and the performance level of the system is evaluated by flow stability and response time of flow regulation. The experimental results show that: When the pipeline flow rate is in the range of (480~7800) m3/h, the system stability Eq=0.193%<0.2%; and when the flow rate increases from 0 to 8500 m3/h, the system response time is about 110s, which indicates its performance level is relatively excellent.

This paper introduces the gas flow standard device using critical flow Venturi nozzle method，The DN600mm gas vortex flowmeter used for steam flow measurement is verified according to jjg1029-2007 《verification regulation of vortex flowmeter》,According to jjf1059.1-2012 《evaluation and expression of measurement uncertainty》, The uncertainty of the measurement result of the K coefficient at the maximum flow point (Qmax point) of the flowmeter is analyzed and evaluated,It provides reference data for the application of large-diameter vortex flowmeter in steam flow measurement.

The statistical analysis of the data of 6000 charging piles randomly selected in an administrative region shows that the annual charging volume and transaction times of charging piles are long tail distribution. 3.3% of the charging piles at the tail, and the annual charging capacity exceeds 55% of the total charging capacity; For 6.7% of the charging piles at the tail, the charging times exceed 37% of the total charging times. The importance factor of charging pile measurement considering annual charging volume and transaction times is proposed as the basis of focused random sampling.

随着计量在工业发展中越来越多，计量工作也越来越受重视，计量校准中的影响校准结果的因素也被大家更多的关注，计量校准工作中的重点难点不确定度分析也越来越被更多人重视，文章以一等金属量器检定二等金属量器为基础来进行不确定度分析，而以往这种不确定度的评定一般以容积量结果为数学模型，计量颈的分度值没有考虑到不确定度的评定中，这样会影响被检金属量器的计量分度值得正确使用。本文根据实际情况以100L二等标准金属量器计量颈液位高度为基础建立数学模型，计量颈分度值考虑进去，对校准结果进行不确定度评定，对A类、B类评定的各项不确定度分量进行全面分析，对于残留量的问题进行了详细说明和分析，为正确开展不确定度评定工作提供参考。

在碳达峰、碳中和的背景下，新能源汽车会逐步替代传统的燃油汽车，电动汽车产业发展持续向好，这也拉动上下游产业链高速发展，充电基础设施数量迅猛增长。至2022年底，潍坊市市充电基础设施保有量将达到8500个以上，而其中交流充电桩接近60％，交流充电桩的计量检定工作也越来越重要。本文从对电动汽车交流充电桩的工作误差 、付费金额误差和时钟示值误差三个方面进行不确定度的评定和分析。

Abstract：When the medium is water and temperature step is about 60°C (from room temperature to 85°C),according tothe different structure of platinum resistance temperature sensor,the thermal response time is tested under the condition of different material of protective tube,internal heat conduction,size of sensing element,velocity of flow and depth of insertion,etc.Through the analysis of test data,the factors and influence degree of response time are found.The response time is closely related to the structure and the material of the RTD temperature sensor in heat transfer. The diameter of the protective tube and the thermal conductivity of the filling material have the greatest influence on the response time of the sensors.

数据采集系统大规模使用于飞机结构强度试验中，常规的手动单通道式的计量校准器效率太低。本文提出了一种基于串并联电路结构的多通道全自动应变量校准器的设计思想，进行了电路设计与误差分析，针对性的设计了自动控制方案和软件实施方案，并分析了校准器的稳定性。

砝码是复现质量单位的实物量具。质量单位通过不同准确度等级的砝码传递到秤、天平等衡器，直接关系到质量单位量值传递的准确性和可靠性。在计量检定、校准机构作为计量标准使用，需定期进行检定保证砝码的量值可溯源至国家基准，准确度等级满足使用的要求。砝码检定过程中必需执行JJG99-2006《砝码检定规程》，检定砝码对实验环境的要求较高，受到实验人员进入实验室的影响，实验环境的温度、相对湿度的稳定性不易控制。而且检定工作繁琐，检定结果易受到检定人员因素的影响。本单位目前建立有E1等级砝码组标准装置，准确度等级仅次于国家质量副基准，在对砝码执行检定过程中发现检定结果受实验室环境不易控制，对检定结果引入较大的不确定度，特别是对检定准确度要求最高的毫克组砝码的影响更为明显。而且检定工作量较大，检定人员长期在低温环境下工作造成身体损害。为此本单位自主研发了一款能够自动控制恒温、恒湿环境、自动加载、自动生成检定记录的全自动砝码检定系统，该系统颠覆了以往砝码需在专业恒温、恒湿实验室检定的模式，解放了检定人员，而且能够适用于不同形状、大小的毫克组砝码的自动检定。

本文针对新疆风电盐湖西风电场的计量检测难题，以多场景全季候监测需求为导向，开展产学研用工作。研究风力发电中的关键共性计量参数（温度、风速场）监测问题。结合先进热敏传感器和无线传输技术，实现微型化测温装置在风电场的推广应用。将激光雷达与智能控制策略相结合，提升风电机组对风场的感知能力，满足风机全季节的安全运行。最终获得风电场规律，为风电场运行提供环境（温度、风速）实时监测，为运维及风险管理提供数据支撑和技术指导。

Atpresentnormalizingfurnaceswithwideandheavyslab,generallyadoptsdetectionsystemfortemperaturehomogeneitywithwatertankforthermalinsulation.Therearemuchmoreshortcomingsforwatertankforthermalinsulation,suchasenormoussize,complicatedwayofwaterinjection,andwatermistcausedbyevaporationofwatervapor,allofwhichhavesomeinfluenceonarmorplateandfurnacetemperaturemeasurement.Moreover,watertankforthermalinsulationhasstrictrequirementsontheweldofwatertank.Oncetheweldcracks,thewaterinthewatertankvolatilizesrapidlyathightemperature,resultinginthermalinsulationfailure.Thedirectresultisthattherecorderintheheatinsulationboxisburntout.Thepurposeofthisprojectistorealizetemperaturemeasurementwithoutwatertankforheatinsulationtoaddressthisissue.

On the basis of the existing ROS trolley, the collection device is designed with SolidWorks and made with a 3D printer; Using Python language and OpenCV computer vision library to program to obtain the position of the object, and using ultrasonic sensor to measure the distance, a campus cigarette end picking robot device is designed. This paper introduces the overall structure and function of the device, and describes the hardware composition of the system manipulator, ROS trolley, control system and collection device in detail; The programming idea and experiment process of the whole system are given. The final debugging results show that the movement state of the finished product model of the device is consistent with the debugging expectation, and the

随着企业生产能力的提高和质量控制的提升，对测量设备量值溯源准的确性和及时性要求日趋严格。自动化、信息化、智能化已经成为检定/校准发展的趋势，量值及时、准确、可溯源传递是产品质量优异的最根本保障。在此背景下建设校准实验室信息系统，不断提高检定/校准过程的效率和质量,显得尤为重要。

The structure of vehicles exhaust emissions sampling and analysis system is complex. The standard stipulates that propane injection is used as the verification method of the total accuracy of the system. This paper introduces the principles and operation steps of two propane injection methods, and discusses the analysis methods of operation problems and error sources that are easy to occur in the total accuracy verification.

电子秤在现今社会上的使用已经很普及，超市、农贸市场、批发市场等以质量作为贸易结算；企业用于调配原料、净含量包装；家庭烹饪调配食材等都会应用到。以前的研究都会以制造是否有相关许可或者仪器的计量特性对电子秤的使用作为评判准则，本文主要是研究以使用者的角度来分析使用电子秤的合理性。

：With the deep and wide application of big data technology in various industries, this paper puts forward the idea of using big data technology to build a natural gas data center based on three stations under the control of a center. Use of big data, virtualization technology, data model analysis and other technical means, the previous technical data and experience, through the definition of the standard and integration, to maximize the use of different data resources can, to explore the measurement standard device and measuring equipment of whole life cycle management, based on the results of the analysis make an accurate management optimization decision-making, The ability to optimize the management level using modern technology means is of reference significance for customers in the use and maintenance of flowmeters.

针对手持式数字多用表校准参数多、易出错、操作耗时的计量问题，研究了基于PYTHON视觉识别算法的手持式数字多用表自动校准技术，介绍了自动校准技术的实现路线，研制了适用于大部分手持式数字多用表的高兼容性简易夹具，并对手持式数字多用表自动校准应用中遇到的示值刷新、刮痕、光源设计等部分实际问题进行了探讨。实验结果表明，基于视觉识别的手持式数字多用表自动校准技术可以较好地代替人工校准操作，对节省人力付出有较明显的作用。

In this paper, the thermal diffusivity of graphite, stainless steel, copper and corundum was tested in the range of (400～800) ℃ by using the vertical thermal diffusivity measurement device based on the laser flash method. The thermal diffusivity stability and repeatability of the material samples were evaluated. The thermal diffusivity test results were studied and analyzed. Suggestions on the selection of thermal diffusivity standard samples were put forward.

充电设施已被列为强制检定计划，但依据现行规程进行现场检定存在较大难度，主要原因为检定其工作误差耗时过长。本文提出一种全新的充电设施工作误差在线检定方法，分析了该方法的实现流程和效果。

Charge amplifier is a kind of preamplifier whose output voltage is proportional to the input charge. Due to the complexity of its verification process, manual verification method is often used at present, resulting in many uncertain factors in the verification results. Therefore, it is particularly important to optimize the verification process of charge amplifier and realize the automatic control of the verification process. In this paper, an automatic verification method based on charge amplifier is provided and its implementation process is described in detail.

With the increasingly fierce competition in the industry, supply chain management has become an inevitable trend to control costs and improve competitiveness. Through the investigation of TIC, this paper analyzes the management mode and optimization suggestions of supply chain in TIC. According to ISO17025, this paper puts forward the optimization and thinking of supply chain management in TIC.

本单位针紫外线加速耐候试验机的温度、湿度、紫外线中心波长和紫外线辐照度四个参数，设计出紫外线加速耐候试验机检定装置。该装置将采用STM32单片机为下位机核心，采集温度、湿度、紫外线中心波长和紫外辐照度四种共12个传感器模块的数据后，通过USR-WIFI232模块进行无线数据传输以及各模块地址分配。将采集的数据发送到上位机labVIEW2018软件开发平台，实现参数的多点实时在线显示、数据存储、生成表格等功能。最终装置实现紫外线波长测量范围为：（200~450）nm，精度±0.5nm；紫外辐照度测量范围为：（0.1~10.0）W/㎡，精度±5%；温度测量范围为：（10~90）℃，精度±0.2℃；湿度测量范围为：（30%~99%）RH，精度±2%RH；温度波动度达到：±0.5℃的技术指标，满足紫外线加速耐候试验机校准规范的要求。