IDENTIFICATION AND DETECTION OF DEFECT IN METAL CASING

Publications

Share / Export Citation / Email / Print / Text size:

International Journal on Smart Sensing and Intelligent Systems

Professor Subhas Chandra Mukhopadhyay

Exeley Inc. (New York)

Subject: Computational Science & Engineering, Engineering, Electrical & Electronic

GET ALERTS

eISSN: 1178-5608

DESCRIPTION

4
Reader(s)
11
Visit(s)
0
Comment(s)
0
Share(s)

VOLUME 8 , ISSUE 2 (June 2015) > List of articles

IDENTIFICATION AND DETECTION OF DEFECT IN METAL CASING

Yinchuan WU * / Baolong GUO

Keywords : alternating-current impedance, defect detecting, metal casing detecting, skin effect.

Citation Information : International Journal on Smart Sensing and Intelligent Systems. Volume 8, Issue 2, Pages 1,261-1,283, DOI: https://doi.org/10.21307/ijssis-2017-806

License : (CC BY-NC-ND 4.0)

Received Date : 06-January-2015 / Accepted: 25-April-2015 / Published Online: 01-June-2015

ARTICLE

ABSTRACT

Based on the propagation rules of electromagnetic waves in metal conductors, this paper analyzes the characteristics of electric field and magnetic field of internal conductors. Then the complex power of electromagnetic wave is calculated. The impedance calculation formula of metal conductor is derived. Moreover, in order to identify and detect defects of metal casing, an alternating current impedance measuring method for the metal casing is proposed by changing the alternating current frequency. Furthermore, a three-dimensional metal casing model is built in COMSOL. Both the electric field and magnetic field are numerically calculated for non-defective and defective casing separately. Meanwhile, the influence of casing defects on the electric field and magnetic field is analyzed. Finally, simulation and measurement results show that: casing defects can be quantitatively detected and effectively located by measuring the alternating impedance of the metal casing.

Content not available PDF Share

FIGURES & TABLES

REFERENCES

EXTRA FILES

COMMENTS