Title:
CIRCULAR-ARC ONE-SIDE NUCLEAR MAGNETIC RESONANCE SENSOR
Document Type and Number:
WIPO Patent Application WO/2016/061876
Kind Code:
A1
Abstract:
The present invention relates to the technical field of nuclear magnetic resonance detection. Disclosed is a circular-arc one-side nuclear magnetic resonance sensor formed by a permanent magnet structure and a saddle-shaped radio frequency coil (5). The permanent magnet structure is formed by three tile-shaped permanent magnets (1, 3a, 3b) and two fan-shaped iron sheets (2a, 2b), the three permanent magnets having the same magnetization direction, and all being magnetized in an axial direction and used to generate a static main magnetic field B0. A crescent-shaped non-magnetic nonmetal spacer (4) is provided between the saddle-shaped radio frequency coil (5) and the permanent magnet structure; and the saddle-shaped radio frequency coil (5) is attached to an inner ring surface of the crescent-shaped spacer, and is used to generate a radio frequency magnetic field B1 in a target area orthogonal to the main magnetic field B0 and to detect an echo signal generated by a sample. The nuclear magnetic resonance sensor has a small volume and a light weight, can be attached to an outer surface of a circular-arc sample, and is particularly suitable for measuring a sample having a circular-arc periphery structure, such as a protective cover of a composite insulator, an external insulating layer of a cable and a rubber tire.
Inventors:
CHEN XIYANG (CN)
XU ZHENG (CN)
HUANG JIANHUA (CN)
YANG TING (CN)
XIA YUNFENG (CN)
LIN JIANHUA (CN)
YIN CHUANGRONG (CN)
WANG YUBIN (CN)
WANG GANBIAO (CN)
QIU QIUHUI (CN)
SHEN XIUBIN (CN)
XU ZHENG (CN)
HUANG JIANHUA (CN)
YANG TING (CN)
XIA YUNFENG (CN)
LIN JIANHUA (CN)
YIN CHUANGRONG (CN)
WANG YUBIN (CN)
WANG GANBIAO (CN)
QIU QIUHUI (CN)
SHEN XIUBIN (CN)
Application Number:
PCT/CN2014/093050
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:
G01N24/08
Domestic Patent References:
| WO2014007122A1 | 2014-01-09 |
Foreign References:
| CN102735706A | 2012-10-17 | |||
| RU2054662C1 | 1996-02-20 | |||
| CN203521094U | 2014-04-02 | |||
| CN102426897A | 2012-04-25 | |||
| CN87108118A | 1988-06-15 | |||
| CN201681685U | 2010-12-22 |
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)
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