发明授权
- 专利标题： Wireless tamper detection sensor and sensing system
- 专利标题（中）： 无线篡改检测传感器和传感系统
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申请号： US11864012申请日： 2007-09-28
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公开(公告)号： US08042739B2公开(公告)日： 2011-10-25
- 发明人: Stanley E. Woodard , Bryant D. Taylor
- 申请人： Stanley E. Woodard , Bryant D. Taylor
- 申请人地址： US DC Washington
- 专利权人： The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
- 当前专利权人： The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
- 当前专利权人地址： US DC Washington
- 代理商 Robin W. Edwards
- 主分类号： G06K19/00
- IPC分类号： G06K19/00
摘要：
A wireless tamper detection sensor is defined by a perforated electrical conductor. The conductor is shaped to form a geometric pattern between first and second ends thereof such that the conductor defines an open-circuit that can store and transfer electrical and magnetic energy. The conductor resonates in the presence of a time-varying magnetic field to generate a harmonic response. The harmonic response changes when the conductor experiences a change in its geometric pattern due to severing of the conductor along at least a portion of the perforations. A magnetic field response recorder is used to wirelessly transmit the time-varying magnetic field and wirelessly detecting the conductor's harmonic response.
公开/授权文献
- US20090302111A1 Wireless tamper detection sensor and sensing system 公开/授权日：2009-12-10