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。

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。

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.

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

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。

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。

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。

用纯甲醇溶解灭幼脲和除虫脲纯度标准物质，并用容量瓶定容至刻度，配制浓度约为100mg/L的灭幼脲和除虫脲溶液。用液相色谱仪分析甲醇中灭幼脲和除虫脲溶液，通过研究液相色谱仪检测波长、流动相比例、柱温和流速对杂质峰和目标峰的分离度、目标物的峰面积以及面积归一化法计算出的目标物的纯度的影响，确定液相色谱仪分析灭幼脲和除虫脲溶液的最佳条件。结果表明以甲醇：水（90：10）做流动相，检测波长为257nm，，柱温为30℃，流速为1.0mL/min时，灭幼脲和除虫脲溶液在液相色谱仪上获得较佳的出峰结果。

计量检验检测机构中待检样品或标准器等种类繁杂，传统条码标签在流程管理中易丢失、可复制，导致样品混乱、丢失、不可追溯等问题。如何在检验检测流程中精细化管理，能够实时查询样品状态是计量检验检测机构需要关注的问题。本文通过在检验检测机构样品智能管理平台中应用UWB定位技术，做到精确追踪样品行动轨迹，解决实际问题，提升检验检测效率及优化检验检测服务质量，为计量检验检测机构智能化水平的推进提供了思路。

本文从准确度高、操作性强的角度介绍了面差尺不同计量特性如何选择测量标准器，通过对测量面差尺各计量特性的标准器进行不确定度计算，论证了其合理性；并具体介绍了测量各计量特性的测量方法和操作步骤，为相关行业提供参考。

非连续累计自动衡器（累计料斗秤）虽然属于自动衡器，但在称量时是静态称重，其称量精度高，并有着较高的称量速率，故在粮食码头、储备粮库、食品、饲料等行业被广泛使用。针对非连续累计自动衡器不同结构形式和称量要求，结合相关检定规程和标准，提出企业在安装设计、使用及后期维护需注意的事项，并提出解决办法。

麻醉机是临床手术实施急救的必备设备，如果其性能不可靠，可能会严重威胁患者的生命安全，目前河南省内还没有麻醉机计量技术规范。通过对麻醉机主要组成及工作原理和检测用标准器的分析介绍，依据JJF 1234-2018、GB 9706.29-2006、YY 0320-2000等相关文献，结合国内其他省市麻醉机计量技术规范，同时考虑麻醉机检测的实际要求，本文确定6个项目作为检测项目，建立麻醉机性能检测方法。通过对四台不同型号的麻醉机进行验证实验，验证结果符合检测要求。建立的麻醉机性能检测方法科学合理，能够较为全面的评判一台麻醉机的性能，提高麻醉机的可靠性和安全性，减少其临床使用风险。

本文研制了一套可以对过滤器完整性测试仪进行校准的装置，装置参照JB/T20200-2021《过滤器完整性测试仪》制药机械行业标准中的技术要求进行设计。装置主要包括：微量调节阀、数字压力计、皂膜流量计、连接管路、接头等设备。装置可对过滤器完整性测试仪的流量和压力参数进行校准，装置管路采用的是承压软管，在不高于1MPa的工作压力下，装置的整体气密性良好，性能稳定。软管之间的连接以及软管与仪器的连接采用的是快插三通和快插接头，装置携带到现场后可以实现快速组装，校准工作完成后，将装置拆解放入收纳箱，收纳后的装置体积小，重量轻，方便携带。

机动车尾气污染已严重危害到人们的身体健康，也被证实是大气环境污染的主要来源。尾气检测一直是机动车监管的重点方向，现存在多种检测技术能够对机动车尾气组分进行检测。根据工作方式的不同，本文将机动车尾气组分检测技术分为接触式和非接触式两大类分别进行归纳综述，系统分析了各自技术特点和应用场景，最后对检测技术的发展方向进行了展望，以期为机动车尾气组分检测相关技术人员提供参考。

为了解全国检验检测机构对铜合金中化学成分检测的技术能力，对几种测定方法进行比较。采用单因素方差分析法（F检验法）对能力验证样品进行了均匀性检验，根据GB/T 28043-2019/ISO 13528：2015《利用实验室间比对进行能力验证的统计方法》给出每个参加者测试结果的z比分数，所有参加实验室提交的结果采用了传统统计技术处理，Grubbs方法剔除异常值之后，计算指定值（平均值）和标准偏差。共涉及1种样品、5个检测项目、73个检测数据的统计和评价，共获得70个满意结果（占95.89%）、3个有问题结果（占4.11%）、0个不满意结果（占0%）。全部结果满意的实验室有13家，占参加实验室总数的81.25%。

本文首先介绍了测速仪的应用场景及检测方法。为解决测量领域中高速测量存在的实际问题，设计研制一套面向多功能测速仪的实验室模拟测速校准装置，该装置主要由上位机触摸屏、PLC、驱动器、伺服电机，传送带、传动轮等构成，通过提供稳定且持续的线速度对不同速度的测速仪进行实验室条件下模拟校准。该方法可有效地解决由于现场环境的影响对测速仪检测造成的干扰，该方法在有效保证测速仪计量特性准确的同时，可提高检测效率，保证检测安全，最后通过实验数据验证了该方法的可行性及准确性。

In the field of industrial control, rotary pulse output encoders can detect parameters such as speed, position, angle, and distance of mechanical motion through the number of pulses output by rotation. In this paper, based on the analysis of the structure, principle, and output characteristics of the encoder, it introduces the principle and structure, calibration method, and experimental data of the rotary pulse output encoder, in order to address the problem of quantity traceability.

Abstract: In order to meet the measurement business requirements such as measurement basic research, measurement application, measurement capability construction, measurement supervision and management, realize the informatization and integration of measurement data, and promote the construction of a measurement value traceability system, this paper designs a distributed storage system based on a distributed storage system. A set of measurement data graph storage system. The measurement data graph storage system architecture based on distributed storage adopts the "4+1" view model and introduces the micro-service architecture, which not only comprehensively describes and examines the entire measurement data graph storage system architecture, but also greatly improves the scalability of the system. . At the same time, the metering data graph storage system solves the problem of unified management and service of metering data among distributed heterogeneous storage technologies through metering data storage model and metering data synchronization service, and lays a foundation for metering data application services.

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。

摘要：高压验电仪是一种能够检测物体是否带电的仪器，能够对高压设备或输配电线路进行检测，从而确定高压设备或输配电线路是否有电存在，进而保证电力维修人员的生命安全。作业时，电力维修人员手持验电仪主机，并将验电仪金属探头与待测物体接触，若验电仪检测到待测物体带电时，则报警器发出警报，以提醒电力维修人员作出相应的安全措施，从而保证其人身安全。目前国内尚无相关的国家检定规程或者校准规范，给验电仪的溯源带来了诸多困难，鉴于此本文提出了一种实用的验电仪校准方法，原理清晰，操作方便，实用性强。

This paper verified TRQ-2004-02 natural gas flow measurement standard orifice plate design and management software, located the faults in standard orifice plate metering system that customer queried ,using the software designed and calculated diameter of the new standard orifice plate, compared the difference of the old and new standard orifice plate metering system, amended the wrong metering data, eliminated the metering objection.

Abstract：This paper introduces the principle, usage and calibration of step gauge. Analyze the limitation of the contact calibrate for step gauge. Now, a new Automatic Aiming Technique for Non-contact Calibration for Step Gauge is described. Combining optoelectronic microscope, laser interferometer and two speed positioning system，non-contact calibration system for step gauge is developed．It can provide non-contact calibration for step gauge with high accuracy. This paper will play a positive role in promoting the development of the Calibration for Step Gauge.

在工业生产中,差压变送器的优劣直接影响着整条生产链的安全运行。各级计量检定部门在日常检定中,由于缺乏合适的检定装置,常常忽略差压变送器的静压影响。本文提出并研制出一种工业差压控制设备检测装置^[1],主要用于在常压以及静压状态下,对差压变送器进行检测,填补了静压影响检测的空白。

This paper briefly introduces several test indexes for ultrasonic flowmeter , and preliminarily interprets the relationship between the sound velocity deviation in GB/T 30500-2014 "ultrasonic gas flow meter performance online audit-method using speed of sound checking" and the verification. The flowmeters that have been in use for six consecutive years (statutory longest inspection period) qualified, unqualified flow pattern, unqualified signal quality of flowmeters and unqualified sound velocity deviation are selected to track the results of their subsequent real-flow verification (additional sound velocity verification if necessary), and analyze the various evaluation indexes and flowmeters that are being inspected in use. The relationship between measurement performance and the possible reasons for unqualified indicators are further analyzed, and suggestions for investigation are given as far as possible. It is expected that the analysis of test results in use can provide reference for the field use of ultrasonic flowmeters.

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

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.

气体分割器是采用毛细管原理的气体稀释装置，使用时无需通电，应用于测量高浓度可燃气体检测仪时，能够有效降低实际操作中的风险。气体分割器在稀释低浓度可燃气体时，稀释后的气体浓度可通过分割比例直接计算，但稀释高浓度可燃气体时，需要使用皂膜流量计实测标准气体和稀释气体的流量，通过流量比例系数计算稀释后气体的浓度。通过试验结果可以看出，气体分割器具有较高的分割准确度，稀释误差小，在测量高浓度可燃气体检测仪方面具有显著优势。