Presentation 2014-02-21
Effect of self-magnetic field on current flowing through true contact area
Terutaka Tamai, Shigeru Sawada, Yasuhiro Hattori,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) As size of true contact are in contact interface is very small comparing apparent area, the current which flow the true contact area is constricted. Contact resistance caused by this constriction of current is called as constriction resistance. The constriction resistance has been obtained by solving Laplace equation which gives space potential. However, it is not sufficient to determine the constriction resistance only by using potential distribution in space. This is one sidedness, interaction between the current and self-magnetic field should be taken account in consideration. Therefore, here, effect of self-magnetic field on constriction resistance was studied on both for one true contact area and two true contact areas with very close distance. Namely, effect of Lorentz force on constriction op current was deduced. As results, effect of Lorentz force is not effective for lower level current, on the other hand, for higher current, current effect is not ignored
Keyword(in Japanese) (See Japanese page)
Keyword(in English) electric contact / contact resistance / constriction resistance / current constriction / Lorentz force
Paper # R2013-87,EMD2013-143
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Conference Information
Committee EMD
Conference Date 2014/2/14(1days)
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Registration To Electromechanical Devices (EMD)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Effect of self-magnetic field on current flowing through true contact area
Sub Title (in English)
Keyword(1) electric contact
Keyword(2) contact resistance
Keyword(3) constriction resistance
Keyword(4) current constriction
Keyword(5) Lorentz force
1st Author's Name Terutaka Tamai
1st Author's Affiliation Elcontec consulting Inc.()
2nd Author's Name Shigeru Sawada
2nd Author's Affiliation AutoNetworks Technologies, Ltd.
3rd Author's Name Yasuhiro Hattori
3rd Author's Affiliation AutoNetworks Technologies, Ltd.
Date 2014-02-21
Paper # R2013-87,EMD2013-143
Volume (vol) vol.113
Number (no) 438
Page pp.pp.-
#Pages 6
Date of Issue