发明名称 |
METHODS, SYSTEMS AND DEVICES FOR DETECTING AND LOCATING FERROMAGNETIC OBJECTS |
摘要 |
Methods for detecting and locating ferromagnetic objects in a security screening system. One method includes a step of acquiring magnetic data that includes magnetic field gradients detected during a period of time. Another step includes representing the magnetic data as a function of the period of time. Another step includes converting the magnetic data to being represented as a function of frequency. Another method includes a step of sensing a magnetic field for a period of time. Another step includes detecting a gradient within the magnetic field during the period of time. Another step includes identifying a peak value of the gradient detected during the period of time. Another step includes identifying a portion of time within the period of time that represents when the peak value occurs. Another step includes configuring the portion of time over the period of time to represent a ratio.
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申请公布号 |
US2008084301(A1) |
申请公布日期 |
2008.04.10 |
申请号 |
US20060539678 |
申请日期 |
2006.10.09 |
申请人 |
ROYBAL LYLE GENE;KOTTER DALE KENT;ROHRBAUGH DAVID THOMAS;SPENCER DAVID FRAZER |
发明人 |
ROYBAL LYLE GENE;KOTTER DALE KENT;ROHRBAUGH DAVID THOMAS;SPENCER DAVID FRAZER |
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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