发明名称 |
BIAS CONFIGURATION FOR A MAGNETOMECHANICAL EAS MARKER |
摘要 |
A flat magnetomechanical electronic article surveillance marker is provided having a magnetostrictive resonator and a pair of bias magnets disposed on opposite sides and adjacent the resonator to bias the resonator with a magnetic field of a preselected field strength. The pair of bias magnets and the resonator are maintained substantially parallel and coplanar with each other to form a thin, flat EAS marker. During assembly of the marker, the bias magnets can be laterally adjustable to fine-tune the resonant frequency of the marker, and to compensate for material variability. Alternately, during assembly of the marker, the bias magnets can be adjustable in length to fine-tune the resonant frequency of the marker, and to compensate for material variability. |
申请公布号 |
WO0193221(A3) |
申请公布日期 |
2002.03.28 |
申请号 |
WO2001US17413 |
申请日期 |
2001.05.30 |
申请人 |
SENSORMATIC ELECTRONICS CORPORATION |
发明人 |
LIAN, MING-REN;PATTERSON, HUBERT, A.;BURGESS, LARRY, L. |
分类号 |
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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