文化的传承是本,创新是魂.坚定文化自信,推动文化繁荣兴盛,才能为持续增强经济社会发展创新力提供强大的精神动力.20余年来,山东省计量科学研究院(以下简称"山东省计量院")在市场监管总局"度万物量天地衡公平"的计量文化框架下,持续加强计量文化和科普工作创新,力促文化科普双融合、双推进.
研制一种可应用于全自动测油仪的新型自动萃取装置.采用立式磁力搅拌萃取方式,选择40 mm×8 mm的磁子,转速为1500 r/min,优化进/出液口位置.将自动萃取装置安装至测油仪中进行试验,方法检出限为0.006 mg/L,测定结果的相对标准偏差为0.87%~1.22%(n=11),样品加标回收率为95.8%~98.4%.该装置分析速度快,结果准确、可靠,可为环境分析质量提供有效保障.
研制新型全自动红外测油仪.通过对进样系统、萃取系统、吸附过滤系统和检测系统自动化和集成化设计,实现了对水中油分的全自动检测.仪器的测量范围为0~200 mg/L.自动进样器取样体积误差在1%以内,仪器示值误差在样品浓度不大于10 mg/L时为0.1 mg/L,样品浓度大于10 mg/L时为0.9%,仪器重复性为0.2%(n=6),零点漂移为-0.1 mg/L,示值漂移为0.6%,最小检出浓度为0.1 mg/L,两种水样测量结果的相对标准偏差分别为1.28%和0.91%(n=11),加标回收率分别为96.8%和96.1%,检出限为0.006 mg/L.该仪器测量准确,性能稳定,能够降低工作强度,提高工作效率,减少有机物危害,为环境监测提供有效保障.
铜环权(战国) 秤锤即是“权”,俗称为“秤砣”,夏朝时已经出现秤锤.秤锤按照形状的差异可分为环形权、鼻纽权、砝码、银锭等.环形权是外形呈圆环状的秤锤,体积和质量都较小,与小型的等臂天平配套使用.春秋战国时期出土的环形权实物中,每件环形权之间的倍数关系明确,以后各朝代出现的环形权均呈现出这种较规整的倍数增减规律.
新一轮改革拉开了崭新的序幕,国家质检总局提出“探索质检改革路,实现质量强国梦”的总体思路,要求全系统大力推进体制改革和机制创新,着力做好包括事业单位分类改革在内的各项改革工作.在质监系统分级管理、检验检测认证机构整合和事业单位分类改革等一系列改革措施的影响下,计量工作作为一项重要的基础性工作,计量技术机构改革必然对今后计量事业的开拓及发展创新产生较为深刻的影响.
0引言<br> 计量文化作为大质检文化的一个重要组成部分,在计量事业发展过程中凝聚形成并随之不断升华,是计量核心价值和精神理念的提炼,是计量工作凝心聚力、创造和谐的重要载体,是计量系统核心竞争力的重要体现,更是促进计量事业长足、科学发展的动力和保障。计量事业培育和催生了计量文化,计量文化对计量工作起着重要的指导和推动作用,计量文化只有付诸计量实践,才能实现提升计量工作的目标,才能真正转化为计量事业发展的软实力。
弧焊电源检测装置的量值准确与可靠程度直接关系到弧焊电源的产品质量,更关系到焊接的质量.对弧焊电源检测装置的工作原理及需要进行质量控制的各项功能进行探讨,基于大量试验得出了对弧焊电源检测装置进行校准的切实可行的校准方法,从而保证了弧焊电源检测装置的准确度,提高了其可靠性及可操作性.
介绍了基于LAN的耐电压测试仪在线检测系统的设计.其中耐电压测试仪校验仪以16位微处理器为核心,以14位ADC进行模数转换,DSP读取数字量进行计算和处理,最后通过显示电路显示测量结果.软件系统采用方便快捷的C++Builder语言编写,从而实现集过程在线检测、检测数据自动处理与报告自动生成于一体的自动检定系统.
In the era of information,the comparison data of measuring instruments is still transferred by telephone and expressed delivery,simultaneously summarized or calculated by using tools like Excel or Word,which needs to be changed urgendy.The article which introduces a design of transformer metrological verification ability comparison system based on ASP.NET,following the relevant regulations of national standard,aims to informationize the transformer comparison organization,procedure management and control,more over to automate data summarization and analysis of transformer comparison by adopting ASP.NET technology.The research provides a new mode for the comparison of measuring instruments.
<正>数字高压表由高压分压器、二次仪表(低压数字表)和连接电缆构成。目前,各地计量技术机构和送样单位往往只认为校准数字高压表就是对高压分压器和二次仪表分别校准,但我们通过大量试验发现,把数字高压
This article introduces testing methods of measurement of insulation resistance tester judging by existing status of it in China.Based on the principle of the measurement and its metrological characteristics,the article discusses the preparation,items and methods of calibration and requests for standard device,as well as similarities and differences of calibration items and method between single-point high voltage value resistor and multipoint high voltage value resistor, forms a systematic and scientific calibration scheme.It has a positive significance for improving reliability and operability of insulation resistance tester measurement.
This article introduces a new scheme of the automatic verification system of D.C.shunt.On the basis of research upon the principle of current comparator and its metrological characteristics,co-workers adopt current comparator technology and present commutation means to effectively reduce the thermoelectric power,then improved accuracy gready.The system adopts modular design,accomplishing instrument control and data collection through GPIB card,which could rapidly finish data collection,error calculation,round-off error,data display,data storage and arrangement of original records and certificate.This new scheme helps to increase the efficiency of verification, meanwhile to reduce cost and energy consumption.
火花试验机的量值准确与可靠程度直接关系到电线电缆的产品质量。通过对火花试验机需要进行质量控制的各项功能的探讨,并基于大量试验数据得出了对火花试验机进行校准的切实可行的方法,从而保证了火花试验机的准确度、稳定性及灵敏度,提高了其可靠性及可操作性。