The upgrade of nim-2 joule balance since 2017
WebAug 1, 2024 · Since 2013, a new joule balance NIM-2 has been designed, with a series of improvements to reduce the measurement uncertainty. By April 2024, NIM-2 has been … WebDec 18, 2013 · 2. The measurement principle of the joule balance In the joule balance the following coil system is used: the exciting coil is fixed and a current I ex flows through it, and a movable coil is hung on the beam of a balance and the current through it is I mo. The electromagnetic force between the exciting coil and movable coil is (∂M/∂z)I ...
The upgrade of nim-2 joule balance since 2017
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http://toc.proceedings.com/40584webtoc.pdf WebThe first determination of the Planck constant with the second generation of the joule balance, NIM-2, was completed in 2024 with an uncertainty of 2.4 × 10-7. Due to the movement of the magnet during the measurement process, the effect of the external field is a critical problem in NIM-2. At present, the electromagnet system is used in NIM …
WebSince 2024; Citations: 875: 502: h-index: 17: 13: i10-index: 24: 16: 0. 120. 60. 30. 90. ... 2024: Coils and the electromagnet used in the joule balance at the NIM. Z Zhang, Z Li, B Han, Y Lu, S Li, J Xu, G Wang ... Designing model and optimization of the permanent magnet for joule balance NIM-2. Q You, J Xu, Z Li, S Li. WebWeb of Science
WebSince 2013, a new joule balance NIM-2 has been designed, with a series of improvements to reduce the measurement uncertainty. By April 2024, NIM-2 has been constructed and can … WebJul 13, 2024 · Abstract: By May 2024, the uncertainty of NIM-2 joule balance is 2.4 × 10 -7 . The main uncertainty contribution is from the external field. To decrease it, a new permanent magnet and magnetic shielding are going to be used. Here, the construction and shimming of the permanent magnet are presented.
Webthe codata 2024 special adjustment for the revision of the si.....9 d. b. newell past and future of optical clocks toward redefinition of the second.....11 tetsuya ido evaluation of emi effects on static electricity meters ... suspended coil in joule balance nim-2 ...
WebAug 28, 2024 · The Recent Progress of the NIM-2 Joule Balance Abstract: In 2024, we have published a measurement result obtained with the NIM-2 joule balance and the relative standard uncertainty is 2.4×10 -7 . Since then, a series of approaches have been carried out to decrease the main uncertainty contributions. scott houlihan lokeyWebUpgrade for Joule Electra LA-100. maxward Posts: 1,360. December 2024 in Electronics. I have been lurking here for the wealth of information about Joule Electra products, so I finally joined. I am the second owner of the the original version of the LA-100 (S/N 041). This has dual balance controls and no remote volume. scott houle fargo ndWebJan 31, 2024 · Abstract: Since 2013, the NIM-2 joule balance apparatus has been designed and constructed at the National Institute of Metrology for the precise measurement of the Planck constant and the redefinition of the kilogram. By the end of 2016, the NIM-2 was ready for measurement in vacuum. preppy floral sleeveless blouseWebJun 1, 2015 · To get a better result, since 2013, the second generation joule balance NIM-2 has been designed with a series of new approaches to lower the main uncertainty … scott houptWebSelect search scope, currently: articles+ all catalog, articles, website, & more in one search; catalog books, media & more in the Stanford Libraries' collections; articles+ journal articles & other e-resources preppy fashion 1980WebAug 28, 2024 · The Recent Progress of the NIM-2 Joule Balance Abstract: In 2024, we have published a measurement result obtained with the NIM-2 joule balance and the relative … scott houriganWebJul 13, 2024 · The NIM-2 joule balance has been constructed since 2013 and was ready for measurement in vacuum by the end of 2016. In May of 2024, the first result obtained in vacuum with an uncertainty of 2.4×10 -7 was submitted for publishing. The main uncertainty contributions are from the external field, alignment, mass calibration and others. scott hourigan spearfish