Title :
The balance system of Joule balance in NIM
Author :
Li, C. ; He, Q. ; Zhang, Z. ; Li, Z. ; Han, B.
Author_Institution :
Dept. of Precision Instrum. & Mechanology, Tshinghua Univ., Beijing, China
Abstract :
To accurately measure the magnetic energy difference at different positions, the Joule balance is designed to work under a high stability and sensitivity environment. This paper presents the detailed design of balance system, the vibration characteristics of the balance foundation and the deformation of balance beam. The experimental results show that the maximum displacement of foundation is detected in the vicinity area of 3.15 Hz. According to the simulation results, the most variation of stresses and deformation of the balance beam is approximately 4.755 × 105 N/m2 and 9.633 um respectively.
Keywords :
balances; deformation; magnetic field measurement; vibration measurement; Joule balance; NIM; balance beam deformation; balance foundation; balance system; magnetic energy difference measurement; vibration characteristic; Atomic measurements; Coils; Energy measurement; Laboratories; Magnetic levitation; Magnetic materials; Magnetic sensors; Permeability; Structural beams; Vibrations;
Conference_Titel :
Precision Electromagnetic Measurements (CPEM), 2010 Conference on
Conference_Location :
Daejeon
Print_ISBN :
978-1-4244-6795-2
DOI :
10.1109/CPEM.2010.5544772
