三等标准金属线纹尺量值计量比对  

Domestic Comparison of Standard Metallic Scales(Grade III)

作　　者：蒋远林[1] 李建双[1] 缪东晶[1] 康瑶[1] 李连福[1] JIANG Yuanlin;LI Jianshuang;MIAO Dongjing;KANG Yao;LI Lianfu(National Institute of Metrology,Beijing 100029,China)

机构地区：[1]中国计量科学研究院,北京100029

出　　处：《计量科学与技术》2024年第6期71-76,共6页Metrology Science and Technology

基　　金：国家计量比对项目(2021-B-04)。

摘　　要：三等标准金属线纹尺是线纹计量器具检定系统中的三等线纹标准,用于我国大量钢直尺等刚性工作线纹尺的量值传递。为了保障我国三等标准金属线纹尺的量值一致性,科学评估我国计量机构三等标准金属线纹尺的校准能力,中国计量科学研究院主导了全国三等标准金属线纹尺计量比对,共有7个实验室参加此次比对。介绍了比对的基本情况、技术方案和比对结果,对线纹尺检测中存在的问题进行了分析并给出技术建议。比对结果表明,各参比实验室归一化偏差均小于1,比对结果满意。Standard metallic scales(Grade III)are the third-grade line standards in the Verification Scheme of Line Measuring Instruments and are used for calibrating rigid working line scales,such as steel rulers,in China.To ensure the consistency of the measurement values of standard metallic scales(Grade III)and to scientifically evaluate the Calibration and Measurement Capabilities(CMC)of these scales in China,the National Institute of Metrology,as the pilot laboratory,organized a national measurement comparison of standard metallic scales(Grade III)(project number 2021-B-04),with seven laboratories participating.This paper introduces the basic information,technical scheme,and results of the comparison,analyzes the existing problems in the calibration of standard metallic scales(Grade III),and provides technical suggestions.The comparison results show that the normalized deviations of all participating laboratories are less than 1,indicating satisfactory comparison results.

关 键 词：计量学 三等标准金属线纹尺 测量校准能力 计量比对 不确定度 

分 类 号：TB921[一般工业技术—计量学]