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。

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。

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.

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。

采用大吨位电子秤作为标准器的质量法流量标准装置，其量值溯源过程需要采用多个、多次加载砝码的方式对其检定。对于没有砝码自动加载系统的标准装置，因空间限制、砝码个数不足等原因造成量值溯源较为困难。本文提出了替代法的试验方法，并从替代法的数学模型出发，分析了替代法标定电子秤的误差来源。并对替代法引入的不确定度进行了评定，根据实例分析了替代法的最大替代次数要求，以保证替代物与标准砝码的质量相当。根据此方法对两台电子秤采用替代法进行了标定，实验结果满足使用要求。

Coordinate measuring machine (CMM) has been widely used in machining, automobile, electronics, aerospace and other fields due to its advantages of intelligence and high efficiency. The measurement accuracy is particularly critical, and one of the important index is the indication error. So it is necessary to strictly control each variable in the calibration, and get the accurate indication error to evaluate the comprehensive measurement accuracy of CMM. In this paper, some problems caused by temperature, probe information and attitude of measuring block in the calibration of CMM are analyzed, and the solutions are put forword. Finally, the measurement uncertainty of the indication error is evaluated, which provides reference for the calibration of CMM.

文章研究和设计了一种用于校准塑料管材耐压试验机的标准装置，其间着重分析了塑料管材耐压试验机校准规范中设定点控制误差项目的校准难点，解决了试验机的压力控制系统在校准时与真实的工作状态不符的问题，以满足校准规范中对标准器的要求。

随着计算机技术的不断发展,计算机技术已成为各行各业最常用的技术。计量检测也离不开计算机技术的支持,使用C#语言开发计量检测应用程序,不但会节省很多人力,还会大大提高了计量检测的准确度。本文结合常规的计量检测过程,介绍计量检测应用程序开发的一般流程,分享一些自己开发计量检测应用程序的经验。

工业企业是国家的重要经济基础。工业文明是一个漫长的进程。中国仅用了七十多年的时间走过了西方国家二百多年的工业化道路，虽然这个道路也是曲折的。本文力求在总结中国工业化进程经验的基础上，通过分析工业计量发展的阶段性特征和未来工业化发展的特点，探讨工业计量发展的重点和方向，以期更好地为中国高质量发展服务。

pH计检定仪由于体积小、便于携带、操作简单，可自动处理原始数据、打印检定结果等优点，已逐步取代电位差计，成为检定各种实验室pH计、实验室离子计、自动电位滴定仪等设备的主要标准器。本文对pH计检定仪pH测量不确定度进行评定；分析了pH示值稳定性是pH测量不确定度来源的主要因素；提出了零点偏移、温差电势是pH计检定仪示值稳定性的主要来源。因此，减小零点偏移、减小温差电势是减少pH示值误差的有效途径。

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.

采用光学分度头和专用的校准夹具对倾角仪示值误差进行校准时，校准夹具以及被检倾角仪的安装和理论存在误差，文章对两者的综合安装误差进行了定量误差分析，给出了安装误差数学模型以及不同安装误差时对被检倾角仪示值误差的影响量，得出在安装误差小于0.4°的情况下，对被检倾角仪示值误差的影响为0.002°，能满足校准最高分辨率为0.01°的倾角仪的要求。

The basic dimensional tolerance of unconfined compressive strength test mould for highway engineering test is not clear, and there is no technical index basis for calibration and measurement confirmation. Through the in-depth interpretation of JTG E51-2009 《 Test Rules for Stabilized Materials of Inorganic Binders in Highway Engineering 》, this paper indirectly gives the basic dimensional tolerance of unconfined compressive strength test, and gives the calibration measuring instruments and calibration methods according to the dimensional tolerance. Finally, it gives the measurement uncertainty analysis process of calibrating the basic dimensions of unconfined compressive strength test by this method, which proves the feasibility of this method.

扭簧比较仪的检查和修理，有一个固定的顺序，不能颠倒次序，其中示值变动性的合格是扭簧比较仪正常使用的首要条件。本文介绍了引起扭簧比较仪示值变动性超差的主要原因，并详细介绍了解决问题的方法。

本论文以热电企业现有的蒸汽计量器具配备为基础，通过完善蒸汽计量器具配备及能量计量的深化应用，实现对蒸汽长输管道的损耗进行科学有效地管理。

In order to solve the problems in the application of the theory about measurement uncertainty in the course of value dissemination, the connotations on both of the measurement uncertainty theory and the measurement error theory, their theoretical characteristics as well as their influences on the data expressions of the measurement results are analyzed. Combined with the common mode in the indication verifying, the necessity of using the measurement error theory to express those indication-verfied result is expounded. Based on the popularization of measurement uncertainty theory, aiming at solving the problems in the establishment of measurement standards, the preliminary strategies to resolve the problems about confliction and adaptation are discussed. The applicable conditions of the two theories in the value dissemination and the establishment of measurement standards are summarized. Finally, some suggestions are proposed.