发明名称 |
LABEL FOR USE IN ACOUSTO-MAGNETIC ANTI-THEFT DEVICES |
摘要 |
A label for use in a magnetoelastic electronic article surveillance system has a strip of an amorphous alloy, forming a resonator having a resonant frequency, when activated by a magnetically semi-hard strip. The strip of amorphous alloy is fixed at one side to the magnetically semi-hard strip, and has a length of ¼ wavelength of the resonant frequency. |
申请公布号 |
EP0944885(B1) |
申请公布日期 |
2002.09.18 |
申请号 |
EP19970952717 |
申请日期 |
1997.12.11 |
申请人 |
VACUUMSCHMELZE GMBH |
发明人 |
EMMERICH, KURT;HERZER, GISELHER |
分类号 |
G08B13/24;H01F1/153;(IPC1-7):G08B13/24 |
主分类号 |
G08B13/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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