发明授权
- 专利标题： Magnetic marker having switching section for use in electronic article surveillance systems
- 专利标题（中）： 具有用于电子物品监视系统的切换部分的磁标记
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申请号： US909340申请日： 1986-09-19
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公开(公告)号： US4710754A公开(公告)日： 1987-12-01
- 发明人: Samuel Montean
- 申请人： Samuel Montean
- 申请人地址： MN St. Paul
- 专利权人： Minnesota Mining and Manufacturing Company
- 当前专利权人： Minnesota Mining and Manufacturing Company
- 当前专利权人地址： MN St. Paul
- 主分类号： G08B13/24
- IPC分类号： G08B13/24 ; G08B13/18
摘要：
A magnetic marker for use with electronic article surveillance systems in which a very high order harmonic response is obtained with postage-stamp sized pieces of high permeability material shaped to have a narrow switching section within which flux is concentrated by larger sections on each end of the switching section, the concentrated flux being sufficient to result in a high harmonic response.
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