Title:
NUCLEAR MAGNETIC RESONANCE MEASUREMENT SYSTEM FOR DETECTING DEGREE OF AGING OF COMPOSITE INSULATOR UMBRELLA SKIRT
Document Type and Number:
WIPO Patent Application WO/2018/072698
Kind Code:
A1
Abstract:
A nuclear magnetic resonance (NMR) measurement system for detecting degree of aging of a composite insulator umbrella skirt comprises an NMR sensor, a diplexer, an NMR spectrometer, a controller, an input device, an output device and a power supply. The controller is configured to, when a control command received is an activation instruction, control the NMR spectrometer to generate a radio-frequency (RF) excitation signal. The NMR sensor is configured to, after receiving the RF excitation signal, establish a static magnetic field and an RF excitation magnetic field, and to detect an NMR echo signal. The diplexer is configured to perform switching between RF excitation signal transmission and NMR signal transmission. The NMR spectrometer is configured to perform an index inversion process on the NMR echo signal to acquire a lateral relaxation time, and to acquire the degree of aging of the composite insulator umbrella skirt according to the lateral relaxation time.
Inventors:
JI YONGLIANG (CN)
WANG QIAN (CN)
HOU XINGZHE (CN)
WU GAOLIN (CN)
XU ZHENG (CN)
GONG LIN (CN)
HU XIAORUI (CN)
PENG HUADONG (CN)
WANG QIAN (CN)
HOU XINGZHE (CN)
WU GAOLIN (CN)
XU ZHENG (CN)
GONG LIN (CN)
HU XIAORUI (CN)
PENG HUADONG (CN)
Application Number:
PCT/CN2017/106597
Publication Date:
April 26, 2018
Filing Date:
October 17, 2017
Export Citation:
Assignee:
STATE GRID CHONGQING ELECTRIC POWER CO ELECTRIC POWER RES INSTITUTE (CN)
UNIV CHONGQING (CN)
STATE GRID CORP CHINA (CN)
UNIV CHONGQING (CN)
STATE GRID CORP CHINA (CN)
International Classes:
G01N24/08
Domestic Patent References:
| WO2013095172A1 | 2013-06-27 |
Foreign References:
| CN102735706A | 2012-10-17 | |||
| CN103558241A | 2014-02-05 | |||
| JP2004028868A | 2004-01-29 | |||
| US6690166B2 | 2004-02-10 |
Other References:
XU, ZHENG ET AL.: "Unilateral Nuclear Magnetic Resonance Method for Nondestructive Testing of the Aging of Composite Insulator Sheds", PROCEEDINGS OF THE CHINESE SOCIETY FOR ELECTRICAL ENGINEERING, vol. 34, no. 36, 25 December 2014 (2014-12-25), pages 6545 - 6553
Attorney, Agent or Firm:
BEYOND ATTORNEYS AT LAW (CN)
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