A determination of the Planck constant by the generalized joule balance method with a permanent-magnet system at NIM

Metrologia ◽  
2016 ◽  
Vol 53 (1) ◽  
pp. 86-97 ◽  
Author(s):  
Jinxin Xu ◽  
Zhonghua Zhang ◽  
Zhengkun Li ◽  
Yang Bai ◽  
Gang Wang ◽  
...  
Keyword(s):  
Permanent Magnet ◽  
Balance Method ◽  
Planck Constant ◽  
Magnet System

Analysis of structure factors affecting suspension force of permanent magnet system with variable magnetic flux path control

2020 ◽  
Vol 64 (1-4) ◽  
pp. 1495-1504
Author(s):  
Fangchao Xu ◽  
Yongquan Guo ◽  
Ran Zhou ◽  
Junjie Jin ◽  
Chuan Zhao ◽  
...  
Keyword(s):  
Magnetic Flux ◽  
Permanent Magnet ◽  
System Structure ◽  
Magnet System ◽  
Load Torque ◽  
Factors Affecting ◽  
Annular Gap ◽  
Path Control ◽  
Structure Factors ◽  
Flux Path

To solve the problem of reduction of suspension force of permanent magnet system with variable magnetic flux path control, according to the structure of the system, suspension principle of the permanent magnet system with variable magnetic flux path control and the generation principle of the load torque, the influence of the mechanical structure of the system on the suspension force is analyzed by changing part of parameters of the system structure. The results show that the existence of magnetic isolation plate is the main reason for the decrease of suspension force, the permanent magnet ring can be thickened to 11.91 mm, the annular gap can be reduced to 1 mm, thickness of the “F” shaped magnetizer can be increased to 9 mm to increase the suspension force.

A determination of the Planck constant using the LNE Kibble balance in air

Metrologia ◽  
2017 ◽  
Vol 54 (4) ◽  
pp. 468-480 ◽  
Author(s):  
M Thomas ◽  
D Ziane ◽  
P Pinot ◽  
R Karcher ◽  
A Imanaliev ◽  
...  
Keyword(s):  
Planck Constant

Theoretical study and optimization design of high-power optical isolator permanent magnet system

2015 ◽  
Vol 27 (1) ◽  
pp. 11001
Author(s):  
胡姝玲 Hu Shuling ◽  
赵东伟 Zhao Dongwei ◽  
王欢欢 Wang Huanhuan ◽  
肖泽宇 Xiao Zeyu ◽  
牛燕雄 Niu Yanxiong
Keyword(s):  
Permanent Magnet ◽  
High Power ◽  
Optimization Design ◽  
Theoretical Study ◽  
Magnet System ◽  
Optical Isolator

Determination of the Planck constant at the national institute of Standards and Technology

2014 ◽  
Author(s):  
S. Schlamminger ◽  
D. Haddad ◽  
F. Seifert ◽  
L.S. Chao ◽  
D.B. Newell ◽  
...  
Keyword(s):  
Planck Constant

Permanent Magnet System for PET Cyclotron

2008 ◽  
Vol 18 (2) ◽  
pp. 965-968 ◽  
Author(s):  
E. Antokhin ◽  
M. Kumada ◽  
Y. Iwashita ◽  
S. Wakasa ◽  
S. Matsumoto ◽  
...  
Keyword(s):  
Permanent Magnet ◽  
Magnet System
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