球压痕硬度基准装置研制  

Development the Primary Standard Machine of the Ball Indentation Hardness

作　　者：刘吉萍[1] 王敬涛 崔园园[1] 曾利民[3] LIU Ji-ping;WANG Jing-tao;CUI Yuan-yuan;ZENG Li-min(National Institute of Metrology,Beijing 100029,China;Laizhou Huayin Testing Instrument Co.Ltd.,Laizhou,Shandong 261400,China;Zhejiang Province Institute of Metrology,Hangzhou,Zhejiang 310018,China)

机构地区：[1]中国计量科学研究院,北京100029 [2]莱州华银试验仪器有限公司,山东莱州261400 [3]浙江省计量科学研究院,浙江杭州310018

出　　处：《计量学报》2020年第7期823-829,共7页Acta Metrologica Sinica

基　　金：中国计量科学研究院量传项目(22-ALC1303-15)。

摘　　要：依据球压痕硬度量值定义,推导出了球压痕硬度基准装置中各量值的精度要求,并根据精度要求研制了球压痕硬度基准装置。介绍了装置的结构及控制系统的设计。实验结果表明:该装置具有量值溯源方便、计量性能稳定的特点,基准装置的扩展不确定度U rel=1.0%(k=2),优于JJG2019-1995《塑料球压痕计量器具》的规定要求,可在8.45~467.2 HB范围开展量值传递工作。Derived precision requirements of relative quantities according to the value definition of Boll Indentation hardness,the new primary standard machine is developed.The machine structure and control system design are introduced.The experiment results that the machine is with characters of convenient traceability and great stability,uncertainty of the primary machine is 1.0%(k=2),better than the requirements of JJG2019-1995 Verification Scheme of Measuring Instruments for Plastic Ball Indentation Hardness,can carry out the value transmission in 8.45~467.2 HB.

关 键 词：计量学 球压痕硬度 基准装置 压痕深度测量 不确定度 

分 类 号：TB938.2[一般工业技术—计量学]