Abstract
Permalloy is used in a magnetically shielded room to inhibit the penetration of external magnetic field, etc. The flux density in permalloy used in the shielded room is of the order of a few mT or lower. In order to examine the performance of such a shielded room, the dc magnetic properties at low flux density is necessary. In this paper, we developed a measurement method of dc (5 mHz) magnetic properties of permalloy under such a low flux density. It is shown that the dc magnetic properties could be measured more than 4 mT by paying the attention to the degaussing of specimen and applying the correction of drift and offset of measurement system.
| Original language | English |
|---|---|
| Article number | 6332951 |
| Pages (from-to) | 3614-3617 |
| Number of pages | 4 |
| Journal | IEEE Transactions on Magnetics |
| Volume | 48 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 2012 Oct 29 |
Keywords
- DC magnetic property
- Low flux density
- Permalloy
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering
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Mimura, M., Takahashi, N., Nakano, M., Ujigawa, S., Shinnoh, T., & Miyagi, D. (2012). Examination of precise measurement of DC magnetic properties of permalloy under low flux density more than a few mT. IEEE Transactions on Magnetics, 48(11), 3614-3617. [6332951]. https://doi.org/10.1109/TMAG.2012.2199471