Title:
V-SHAPED PERMANENT MAGNET DEVICE CAPABLE OF GENERATING STATIC GRADIENT MAGNETIC FIELD
Document Type and Number:
WIPO Patent Application WO/2016/061875
Kind Code:
A1
Abstract:
Disclosed is a V-shaped permanent magnet device capable of generating a static gradient magnetic field. The V-shaped permanent magnet device comprises a V-shaped yoke, a first cylindrical permanent magnet, a second cylindrical permanent magnet, a first shimming gasket and a second shimming gasket. The first cylindrical permanent magnet and the second cylindrical permanent magnet are arranged in an axial symmetry mode, and the first shimming gasket and the second shimming gasket are arranged in an axial symmetry mode. The magnetization direction of the first cylindrical permanent magnet and the magnetization direction of the second cylindrical permanent magnet are in the axial directions of the cylinders respectively, the residual magnetism of the first cylindrical permanent magnet is the same as the residual magnetism of the second cylindrical permanent magnet, and the magnetic pole of the end, connected to the V-shaped yoke, of the first cylindrical permanent magnet is opposite to the magnetic pole of the end, connected to the V-shaped yoke, of the second cylindrical permanent magnet. A static gradient field area generated by the V-shaped permanent magnet device of the present invention is located in a V-shaped structural cavity between the two shimming gaskets, and material aging of a composite insulator on a core rod can be detected conveniently. Besides, the V-shaped permanent magnet device is simple in overall structure, small in size and convenient to carry. The V-shaped permanent magnet device can change the uniformity of the magnetic field in the static gradient field area by changing a V-shaped included angle of the V-shaped yoke and gradient angles of the shimming gaskets, and improves nuclear magnetic resonance signal quality.
Inventors:
XIA YUNFENG (CN)
XU ZHENG (CN)
CHEN XIYANG (CN)
YANG TING (CN)
HUANG JIANHUA (CN)
YIN CHUANGRONG (CN)
LIN JIANHUA (CN)
WANG GANBIAO (CN)
YE JUFEN (CN)
SHEN XIUBIN (CN)
GUAN XINWEI (CN)
XU ZHENG (CN)
CHEN XIYANG (CN)
YANG TING (CN)
HUANG JIANHUA (CN)
YIN CHUANGRONG (CN)
LIN JIANHUA (CN)
WANG GANBIAO (CN)
YE JUFEN (CN)
SHEN XIUBIN (CN)
GUAN XINWEI (CN)
Application Number:
PCT/CN2014/093048
Publication Date:
April 28, 2016
Filing Date:
December 04, 2014
Export Citation:
Assignee:
GUANGDONG POWER GRID CO LTD DONGGUAN POWER SUPPLY BUREAU (CN)
UNIV CHONGQING (CN)
UNIV CHONGQING (CN)
International Classes:
H01F7/02; H01F41/02
Foreign References:
| CN102110513A | 2011-06-29 | |||
| CN102024546A | 2011-04-20 | |||
| CN1404580A | 2003-03-19 | |||
| JP2011217913A | 2011-11-04 | |||
| JP2007097761A | 2007-04-19 |
Attorney, Agent or Firm:
TIDYTEND INTELLECTUAL PROPERTY LAW FIRM (CN)
北京同恒源知识产权代理有限公司 (CN)
北京同恒源知识产权代理有限公司 (CN)
Download PDF:
Previous Patent: METHOD FOR PREPARING TETRODOTOXIN
Next Patent: CIRCULAR-ARC ONE-SIDE NUCLEAR MAGNETIC RESONANCE SENSOR
Next Patent: CIRCULAR-ARC ONE-SIDE NUCLEAR MAGNETIC RESONANCE SENSOR