摘要
电子秤的现场计量中,由于现场情况的特殊性,无法满足JJG539-2015《数字指示称检定规程》所规定一些检定条件。为了更好的达到量值传递要求,做好某发动机的计量保障工作。结合现场的实际情况,研究了一套针对此类电子秤的计量方案。分别完成安全性、置零准确度及除皮准确度、称量、除皮后称量、重复性等项目的计量方法设计。对此方法引入测量的不确定度做出分析评定,结果表明此计量方案可以解决此电子秤的现场计量检定难题,符合某发动机流量计量保障任务要求。
In the field of electronic measurement ,some verification cannot meet the required conditions of JJG539-2015＆lt; digital-indicating scale verification rules＆gt; at the scene of the special environment .In order to better meet the require-ments of dissemination ,completes a engine of metrological security work .Combined with the actual situation of the scene ,studies a set of metering scheme aiming at this kind of electronic scale .There are security ,accuracy of the zero , in addition to the skin of accuracy ,weighing accuracy and repeatability measurement method of the project such as design included in the plan .This method is introduced into measurement uncertainty evaluation .The results show that the measurement scheme can solve the field calibration of electronic balance problems ,as to meet the requirements of a en-gine flow metering security tasks .
出处
《国外电子测量技术》
2017年第10期92-96,共5页
Foreign Electronic Measurement Technology
基金
陕西省科技攻关项目(2016GY-157)资助
关键词
电子秤
现场计量
不确定度
砝码
替代法
electronic scale
field measurement
uncertainty
jordan farmar
alternative method
