Browse > Article
http://dx.doi.org/10.4283/JKMS.2016.26.5.154

Study on Magnetic Property for Test Coil and Permanent Magnet  

Park, Yun Bum (Korea Atomic Energy Research Institute)
Kim, Jong Wook (Korea Atomic Energy Research Institute)
Lee, Jae Seon (Korea Atomic Energy Research Institute)
Abstract
A CRDM (Control Rod Drive Mechanism) is an electromagnetic device which drives a control rod assembly linearly to regulate the reactivity of a nuclear core. An RPIS (Rod Position Indication System) is used as a position indicator for a control rod assembly of a CRDM of SMART, and an RPIS consists of permanent magnets and reed switches. SMART is designed for the maximum coolant temperature of $350^{\circ}C$, and the permanent magnets are installed inside of the reactor. The reed switches and electrical circuit are installed outside of the reactor on the other hand. Test coil for a reed switch is test equipment for quality verification of a reed switch, and a test coil consists of a coil and core. In this study, magnetic property of test coil and permanent magnet on a reed switch is compared by using finite element electromagnetic simulation.
Keywords
rod position indication system; test coil; permanent magnet; magnetic property; reed switch;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 J. S. Lee, H. G. Jun, and Y. J. Youn, IEEE Trans. Magn. 50, 8001004 (2014).
2 J. S. Lee, K. K. Kim, and J. W. Kim, KSME 15CA-FR03P-44, 326 (2015).
3 J. S. Lee, S. S. Cho, and J. W. Kim, J. Magn. 20, 439 (2015).   DOI
4 Maxwell v17 User's guide, ANSYS Inc. (2016).
5 http://www.alnico-info.com/temperature_ratings.aspx.
6 Standex Meder Electronics, Reed technology, pp. 8-9.
7 http://www.dextermag.com/resource-center/faq-hall-effect-reedswitch-sensors.