High-performance bench-top cylindrical magnetic shield with magnetic shaking enhancement

Kenji Nagashima, Ichiro Sasada, Kunihisa Tashiro

Research output: Contribution to journalConference article

5 Citations (Scopus)

Abstract

A high-performance bench-top cylindrical magnetic shield made of amorphous ribbons is presented. It has double active shells made of Metglas 2705M amorphous ribbon to which magnetic shaking enhancement is applied. Passive shells made of Metglas 2714A amorphous ribbons were installed to reduce leakage field of magnetic shaking. With total weight 1.3 kg of the amorphous ribbons, sufficiently large shielding performance was measured against 10-μT, 10-Hz uniform magnetic field. The value of axial shielding factor (ASF) was 700 and transverse shielding factor (TSF) was more than 20 000. The residual dc fields were less than 20 nT in axial direction and 5 nT in radial direction under the worst condition, where the shield axis is oriented along the horizontal component (∼ 32 μT) of the Earth's magnetic field.

Original languageEnglish
Pages (from-to)3335-3337
Number of pages3
JournalIEEE Transactions on Magnetics
Volume38
Issue number5 I
DOIs
Publication statusPublished - Sep 2002
Event2002 International Magnetics Conference (Intermag 2002) - Amsterdam, Netherlands
Duration: Apr 28 2002May 2 2002

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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