噪声传递中失配误差的再讨论及解决方案

doi:10.3969/j.issn.1000-1158.2016.05.18

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Abstract Illustrated by the case of Medium Frequency Attenuation noise measurement, a mismatch model is proposed to solve the problem of larger uncertainty of noise transfer of domestic laboratories. Based on the research of measurement uncertainty for complex quantities with unknown phase, an optimal estimation of mismatch uncertainty is described. With the more accuracy estimation of mismatch uncertainty, the effectiveness and the use strategy of the isolation attenuator are discussed. The best solution of mismatch in noise measurement is proposed at last.

Key words： metrology noise measurement quantity transfer mismatch uncertainty

Received: 22 April 2015 Published: 29 July 2016

PACS:

TB973

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	Articles by authors
	GAO Shen-xiang
	HUO Ying
	CUI Bao
	SUN Chao-bin

Cite this article:

GAO Shen-xiang,HUO Ying,CUI Bao, et al. Re-discussion and Solution for Mismatch in Noise Quantity Transfer[J]. Acta Metrologica Sinica, 2016, 37(5): 540-543.

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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2016.05.18 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2016/V37/I5/540

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