The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 07, 2017
Filed:
Dec. 14, 2011
Qiuliang Wang, Beijing, CN;
Hui Wang, Beijing, CN;
Xinning HU, Beijing, CN;
Yinming Dai, Beijing, CN;
Luguang Yan, Beijing, CN;
Jianyi Xu, Beijing, CN;
Housheng Wang, Beijing, CN;
Jianhua Wang, Beijing, CN;
Qiuliang Wang, Beijing, CN;
Hui Wang, Beijing, CN;
Xinning Hu, Beijing, CN;
Yinming Dai, Beijing, CN;
Luguang Yan, Beijing, CN;
Jianyi Xu, Beijing, CN;
Housheng Wang, Beijing, CN;
Jianhua Wang, Beijing, CN;
Abstract
An open type nuclear magnetic resonance magnet system having an iron ring member. A superconducting coil and a superconducting switch form a closed-loop current circuit to generate a magnetic field. The generated magnetic field gains a magnetic flux circuit and executes magnetic field shielding through upper and lower iron yokes and a lateral iron yoke. The magnet system generates a desired magnetic field in a magnet imaging central area via the superconducting coil. To balance the extremely high electromagnetic force between the superconducting coil and the upper and lower iron yokes, an annular iron ring is mounted in a space defined by an inner perimeter wall of in a cryogenic container. The magnetic field distribution between the superconducting coil and the upper and lower iron yokes is changed via the iron ring, so that the electromagnetic interaction force therebetween is reduced.