冲击加速度国际关键比对与参考值确定

doi:10.3969/j.issn.1000-1158.2024.01.09

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Abstract The National Institute of Metrology, as pilot laboratory for the first international key comparison for shock acceleration(CCAUV.V-K4) is proposed. Technical protocol is illustrated by combination of dynamic characteristics of shock acceleration measuring chain and spectral contents of shock excitation. Three different approaches are used to calculate the reference value of comparison, including recommended method by international comparison and two methods based on Bayesian inference. It is argued that Bayesian approach with different statistical model is compatible with the practice of metrology, with different prior distribution and MCMC method to obtain the posterior distribution. The equivalence and divergence of three methods are illustrated through comparison of results obtained.

Key words： metrology shock acceleration key comparison CCAUV.V-K4 reference value Bayesian inference

Received: 26 September 2022 Published: 22 January 2024

PACS:

TB936

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	Articles by authors
	HU Hongbo
	BAI Jie
	SUN Qiao

Cite this article:

HU Hongbo,BAI Jie,SUN Qiao. International Key Comparison of Shock Acceleration and Determination of the Reference Value[J]. Acta Metrologica Sinica, 2024, 45(1): 57-63.

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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2024.01.09 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2024/V45/I1/57

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