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Universal Metric for Assessing the Magnitude of the Uncertainty in the Measurement of Fundamental Physical Constants
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作者 Boris Menin 《Journal of Applied Mathematics and Physics》 2017年第2期365-385,共21页
In this paper, we aim to verify the numerical magnitude of the relative uncertainty in the measurement of fundamental physical constants. For this purpose, we use a metric called comparative uncertainty with which an ... In this paper, we aim to verify the numerical magnitude of the relative uncertainty in the measurement of fundamental physical constants. For this purpose, we use a metric called comparative uncertainty with which an a priori mismatch between the selected model and the observed physical object is checked. The comparative uncertainty is caused by the finite number of dimensional variables of the applied model. We show a comparison of the achieved values of the relative and comparative uncertainties of the gravitational constant, Planck’s constant, Boltzmann’s constant, and fine structure constant, according to data published in the scientific literature over the last 7 - 15 years. The results generally agree well with CODATA recommendations. We show that the comparative uncertainty as a universal metric can be used for the identification of recommended target values of the relative uncertainty in the field experiments. 展开更多
关键词 fundamental physical constants Information THEORY Mathematical Modeling SIMILARITY THEORY uncertainty
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Simplest Method for Calculating the Lowest Achievable Uncertainty of Model at Measurements of Fundamental Physical Constants
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作者 Boris Menin 《Journal of Applied Mathematics and Physics》 2017年第11期2162-2171,共10页
The CODATA procedure for calculating the recommended relative uncertainty of the measured fundamental physical constants is complex and is based on the use of powerful computers and modern mathematical statistical met... The CODATA procedure for calculating the recommended relative uncertainty of the measured fundamental physical constants is complex and is based on the use of powerful computers and modern mathematical statistical methods. In addition, the expert’s opinion caused by accumulated knowledge, life experience and intuition of researchers is applied at each stage of the calculations. In this article, the author continues to advocate a theoretically grounded information method as the most effective tool for testing and achieving the minimum possible relative uncertainty for any measurements of experimental physics and engineering. The introduced fundamental limit characterizing discrepancy between a model and the observed object cannot be overcome by any improvement of instruments, methods of measurement and the model’s computerization. Examples are given. 展开更多
关键词 fundamental physical constants Information THEORY Mathematical Modeling SIMILARITY THEORY uncertainty
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Relationship between the Fundamental Constants of Physics Obtained from the Uncertainty Principle for Energy and Time 被引量:1
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作者 Stanislaw Olszewski 《Journal of Modern Physics》 2015年第5期622-626,共5页
An attempt is done to calculate the value of the elementary electron charge from its relation to the Planck constant and the speed of light. This relation is obtained, in the first step, from the Pauli analysis of the... An attempt is done to calculate the value of the elementary electron charge from its relation to the Planck constant and the speed of light. This relation is obtained, in the first step, from the Pauli analysis of the strength of the electric field associated with an elementary emission process of energy. In the next step, the uncertainty principle is applied to both the emission time and energy. The theoretical result for e is roughly close to the experimental value of the electron charge. 展开更多
关键词 fundamental constants of Physics uncertainty Principle for Energy and Time
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探讨大学物理实验教学中物理常量的使用和测量结果的表示 被引量:3
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作者 韩国华 王云才 《大学物理》 北大核心 2010年第12期45-48,共4页
指出并探讨当前大学物理实验教学尚存部分内容陈旧落后、与科学技术发展脱节以及是否采用国际、国家通用标准等问题.通过介绍基本物理常量的研究进展,建议在教学中采用国际科学技术数据委员会2006年推荐的基本物理常量;根据国内外学术... 指出并探讨当前大学物理实验教学尚存部分内容陈旧落后、与科学技术发展脱节以及是否采用国际、国家通用标准等问题.通过介绍基本物理常量的研究进展,建议在教学中采用国际科学技术数据委员会2006年推荐的基本物理常量;根据国内外学术惯例及国家标准,提出测量结果不确定度的表示方法;为避免有效数字缺乏统一的定义或引起误解,建议在实验教学中用修约间隔规定后的修约值来代替有效位数的概念,同时要引入修约间隔的概念;最后,给出了微小标准差的可忽略准则. 展开更多
关键词 基本物理常量 不确定度 有效位数 微小标准差
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三项实验新技术对基本物理常数的影响
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作者 卢森锴 《广西民族大学学报(自然科学版)》 CAS 2011年第3期63-67,92,共6页
阐述光梳技术、彭宁阱技术和瓦特天平三项实验新技术对基本物理常数的影响越来越重要;实验技术的新成果为提高物理常数的精度提供了条件;高精度的物理测量为新的科学发现奠定了基础,进一步体现了基本物理常数与科学技术的发展起着相互... 阐述光梳技术、彭宁阱技术和瓦特天平三项实验新技术对基本物理常数的影响越来越重要;实验技术的新成果为提高物理常数的精度提供了条件;高精度的物理测量为新的科学发现奠定了基础,进一步体现了基本物理常数与科学技术的发展起着相互促进的作用. 展开更多
关键词 光梳技术 彭宁阱技术 瓦特天平 不确定度 物理化学常数
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三届基本物理常数CODATA平差综述 被引量:3
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作者 卢森锴 郭奕玲 沈慧君 《物理》 CAS 北大核心 2008年第7期508-516,共9页
评述了最近三届基本物理常数CODATA(1998,2002,2006)推荐值,阐述了各阶段所依据的主要实验及理论上的新进展,介绍了三个实验新技术对物理常数发展的特殊作用.
关键词 基本物理常数 平差 不确定度 光梳技术 瓦特天平 彭宁阱
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基本物理常数最新推荐值评述 被引量:3
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作者 沈乃 《物理》 CAS 北大核心 2001年第4期203-209,共7页
简明地评述了由国际科学技术数据委员会 (CODATA) 1998年推荐的基本物理常数中得到的一些结论 .按CODATA两次推荐的数值 ,对 1998年和 1986年的常数值及相应的不确定度进行了比较 .
关键词 基本物理常数 不确定度 推荐值 CODATA 国际科学技术数据委员会 物理学 计量学
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