CLC number: TM5; TM15
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Received: 2007-09-20
Revision Accepted: 2007-12-14
Crosschecked: 0000-00-00
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Guo-fu ZHAI, Qi-ya WANG, Wan-bin REN. Research on electromagnetic relay’s dynamic characteristics disturbed by uniform static magnetic field[J]. Journal of Zhejiang University Science A, 2008, 9(4): 577-582.
@article{title="Research on electromagnetic relay’s dynamic characteristics disturbed by uniform static magnetic field",
author="Guo-fu ZHAI, Qi-ya WANG, Wan-bin REN",
journal="Journal of Zhejiang University Science A",
volume="9",
number="4",
pages="577-582",
year="2008",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A0720004"
}
%0 Journal Article
%T Research on electromagnetic relay’s dynamic characteristics disturbed by uniform static magnetic field
%A Guo-fu ZHAI
%A Qi-ya WANG
%A Wan-bin REN
%J Journal of Zhejiang University SCIENCE A
%V 9
%N 4
%P 577-582
%@ 1673-565X
%D 2008
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A0720004
TY - JOUR
T1 - Research on electromagnetic relay’s dynamic characteristics disturbed by uniform static magnetic field
A1 - Guo-fu ZHAI
A1 - Qi-ya WANG
A1 - Wan-bin REN
J0 - Journal of Zhejiang University Science A
VL - 9
IS - 4
SP - 577
EP - 582
%@ 1673-565X
Y1 - 2008
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A0720004
Abstract: electromagnetic relay is a widely used apparatus which usually works in a magnetic disturbance environment. To evaluate its electromagnetic compatibility (EMC) in a static magnetic field, dynamic characteristics of a clapper relay in a uniform static magnetic field situation based on the finite element method (FEM) is studied. Influences of the magnetic field on dynamic parameters (delay time, pick-up time, end pressure, and final velocity) as well as a situation in which the relay cannot function normally are analyzed. Simulation reveals that the external magnetic field which weakens the relay’s air-gap field has a greater influence on the relay’s dynamic parameters than the one strengthening the field. The validity of the simulation is verified by measured results of coil current and armature displacement.
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