磁感应强度基准技术评述

doi:10.3969/j.issn.1000-1158.2019.04.25

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Abstract To reviews the uncertainty and the application about currently used base standards about magnetic flux density (MFD), which include the artifactitious standard based on calculated coil, the quantum standard based on the principle of nuclear magnetic resonance (NMR), and the fundamental physical constant standard based on gyromagnetic ratio of proton. The field of quantum precise measurement is developing rapidly in recent years, and some new advances are bring out like the atomic magnetic resonance (AMR) quantum standard which can achieve higher accuracy than NMR standards, and the superconducting NMR technology which can expand the lower bound of NMR standards. To particularly reviews the technologies about the current quantum stands of MFD, and briefly introduces some new techniques that expected to expand the new frontiers of magnetic metrology.

Key words： metrology MFD base standard quantum standard NMR AMR

Received: 24 April 2018 Published: 10 June 2019

PACS:

TB972

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	Articles by authors
	FU Ji-qing
	ZHANG Wei
	HE Qing

Cite this article:

FU Ji-qing,ZHANG Wei,HE Qing. Review of the Technologies of the Magnetic Flux Density Base Standard[J]. Acta Metrologica Sinica, 2019, 40(4): 700-703.

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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2019.04.25 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2019/V40/I4/700

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