Leakage magnetic field variation induced by inner surface grooves during loading in geomagnetic environment

Issue title: Selected papers from the International Symposium on Applied Electromagnetics and Mechanics - ISEM 2019

Guest editors: Jinhao Qiu, Ke Xiong and Hongli Ji

Article type: Research Article

Authors: Hu, Bin^a; | Li, Tao Yun^a | Shen, GongTian^a | Wan, Benli^a

Affiliations: [a] China Special Equipment Inspection & Research Institute, Beijing, China

Correspondence: [*] Corresponding author: Bin Hu, China Special Equipment Inspection & Research Institute, 100029, Beijing, China. Tel.: +86 10 59068300; Fax: +86 10 59068323; E-mail: hubin@csei.org.cn

Abstract: The leakage magnetic field which induced by the inner surface groove during loading had been measured from the outer surface in geomagnetic environment. Compared the variation of the leakage magnetic field along the load with the location and development of the groove, it was found that two phenomena are relate to the magnetic field aberration. The relation can be described by the pink-pink value and the gradient of the magnetic field aberration. This result can be used to evaluate and monitor the inner defect by the magnetic field aberration characters.

Keywords: Leakage magnetic field, variation, inner surface groove, loading, geomagnetic environment

DOI: 10.3233/JAE-209474

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 64, no. 1-4, pp. 1531-1538, 2020