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1. 发明申请

WO2012174745A1 APPARATUS USED FOR DETECTING METAL, METAL DETECTION APPARATUS AND METHOD, AND VEHICLE DETECTOR 审中-公开
标题翻译：用于检测金属，金属检测装置和方法的装置和车辆检测器
公开(公告)号：WO2012174745A1
公开(公告)日：2012-12-27
申请号：PCT/CN2011/076308
申请日：2011-06-24
申请人： SIEMENS AKTIENGESELLSCHAFT , Xu, Leiming , Liu, Haibao , Qiu, Wei
发明人： Xu, Leiming , Liu, Haibao , Qiu, Wei
IPC分类号： G08G1/042 , G01V3/11
CPC分类号： G01V3/104
摘要： An apparatus used for detecting metal includes a signal sending circuit (102) and a signal receiving circuit (103). The signal sending circuit (102) includes first group of LC parallel circuits (L1, C1) and second group of LC parallel circuits (L2, C2). The first group of LC parallel circuits (L1, C1) can be connected with a signal source (101), receive first group of square wave signals from the signal source (101) and generate a first magnetic field; the second group of LC parallel circuits (L2, C2) can be connected with the signal source (101), receive second group of square wave signals from the signal source (101) and generate a second magnetic field; the first and second groups of square wave signals have inverse phases, and square wave signals in each group have the same phase. The signal receiving circuit (103) includes at least one receiving coil (L3), which can be connected with the signal source (101), generates and feeds inductive current to the signal source (101).
摘要翻译：用于检测金属的装置包括信号发送电路（102）和信号接收电路（103）。信号发送电路（102）包括第一组LC并联电路（L1，C1）和第二组LC并联电路（L2，C2）。第一组LC并联电路（L1，C1）可以与信号源（101）连接，从信号源（101）接收第一组方波信号并产生第一磁场; 第二组LC并联电路（L2，C2）可以与信号源（101）连接，从信号源（101）接收第二组方波信号并产生第二磁场; 第一组和第二组方波信号具有反相，每组中的方波信号具有相同的相位。信号接收电路（103）包括可与信号源（101）连接的至少一个接收线圈（L3），产生并馈送到信号源（101）的感应电流。

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