| Zugriffsnummer | 37232 |
| Dokumenttyp | Zeitschriftenartikel |
| Peer Review | mit Peer Review |
| Sprache | Englisch |
| Titel | Calculation of an optimized design of magnetic shields with integrated demagnetization coils |
| Autor(in); Institution |
Sun, Zhiyin; School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin, CHINA
Schnabel, Allard; 8.2, Biosignale, PTB-Berlin
Burghoff, Martin; 8.2, Biosignale, PTB-Berlin
Li, L.; School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin, CHINA
|
| Quelle/Jahr | AIP Advances: 6 (2016), 1 - 9 |
| Artikelnummer | 075220 |
| Availability | [online only] |
| ISSN | 2158-3226 (ONLINE) |
| DOI | |
| URL | |
| Verlag | New York, NY: AIP |
| Zusammenfassung | Magnetic shielding made from permalloy is frequently used to provide a time-stable magnetic field environment. A low magnetic field and low field gradients inside the shield can be obtained by using demagnetization coils through the walls, encircling edges of the shield. We first introduce and test the computational models to calculate magnetic properties of large size shields with thin shielding walls. We then vary the size, location and shape of the openings for the demagnetization coils at the corners of a cubic shield. It turns out that the effect on the shielding factor and the expected influence on the residual magnetic field homogeneity in the vicinity of the center of the shield is negligible. Thus, a low-cost version for the openings can be chosen and their size could be enlarged to allow for additional cables and easier handling. A construction of a shield with beveled edges and open corners turned out to substantially improve the shielding factor. |
| Kostenfreier Zugang | Open Access Gold |
| Rechteinformation | CC BY 4.0 ; Creative Commons Attribution 4.0 License ; Original Article under a Creative Commons license CC BY 4.0 |