叠加式力标准机检定幸存者偏差初探  

An Initial Exploration of Survivorship Bias in Verification of Build-up Force Standard Machines

作　　者：张伟[1] 张智敏[1] 李楠[1] ZHANG Wei;ZHANG Zhimin;LI Nan(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》2021年第5期89-92,共4页Metrology Science and Technology

基　　金：国家重点研发计划资助(2017YFF0206302)。

摘　　要：介绍了叠加式力标准机(以下简称叠加机)的原理和特点。结合检测实际,分析和阐述了叠加机检定工况和使用工况。首次提出了检定幸存者偏差的概念,阐述了叠加机检定幸存者偏差的实验方法,并对部分偏差因素进行了对照实验。新概念的提出有助于探索叠加机检定与使用中的盲区,有助于解释部分叠加机应用中发现的现象和问题,对正确检测、生产、使用和评价叠加机具有积极意义。The paper introduces the characteristics and verification of build-up force standard machines(BMs).Differences between verification and actual working conditions for BMs were analyzed.To deal with the inconsistency under different conditions,a new concept,Verification Survivorship Bias(VSB),was proposed for the first time.An experimental method for BM VSB was developed.The new concept can be used to explore BM characteristics and explain some problems discovered.This work can shed light on manufacturing,verification,use,and evaluation of BMs.

关 键 词：叠加式力标准机 检定工况 使用工况 幸存者偏差 对照实验 轴向力 寄生分量 

分 类 号：TB93[一般工业技术—计量学]