DocumentCode :
38181
Title :
Comparison of Magnetic Field Distribution Models for a Magnetic Proximity Detection System
Author :
Li, Jie ; Jobes, Christopher C. ; Carr, Jacob L.
Author_Institution :
National Institute for Occupational Safety and Health, Pittsburgh Research Center , Pittsburgh, PA, USA
Volume :
49
Issue :
3
fYear :
2013
fDate :
May-June 2013
Firstpage :
1171
Lastpage :
1176
Abstract :
Magnetic proximity detection technology is rapidly advancing as a promising method of protecting underground mine workers from striking and pinning hazards associated with mobile mining machines. A magnetic proximity detection system requires a magnetic distribution model to estimate the proximity of the sensor to the generators. This paper presents a comparative analysis of magnetic flux density distribution models in three different field distribution design patterns. The accuracy of these models is determined with a laboratory magnetic proximity detection system. These field distribution design patterns are spherical, ellipsoidal, and sphere-cosine, respectively. The analyses show that the sphere-cosine model is the most accurate model for the proximity system followed by the ellipsoidal and spherical models.
Keywords :
Accuracy; Generators; Magnetic fields; Magnetic flux density; Mathematical model; Shape; Collision avoidance; electromagnetic modeling; error analysis; ferrite device; magnetic fields; magnetic flux density; magnetic sensors; mining equipment; optimization;
fLanguage :
English
Journal_Title :
Industry Applications, IEEE Transactions on
Publisher :
ieee
ISSN :
0093-9994
Type :
jour
DOI :
10.1109/TIA.2013.2244546
Filename :
6425458
Link To Document :
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