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    • 2. 发明授权
    • Baggage management gate
    • 行李管理门
    • US08018321B2
    • 2011-09-13
    • US12073784
    • 2008-03-10
    • Shoji YamaguchiYasunori KodaKunihiro TakahashiMario FuseHiroyoshi InoueTsukasa Matsuda
    • Shoji YamaguchiYasunori KodaKunihiro TakahashiMario FuseHiroyoshi InoueTsukasa Matsuda
    • B60R25/00G05B19/00G08B13/14H04B7/00
    • G01R33/04G01R33/02
    • A baggage management gate including an exciting coil, a detecting coil and signal processing unit. The exciting coil forms an alternating magnetic field in a passage to an area from which manages objects to be carried in or carried out. The detecting coil detects a variation in the alternating magnetic field when magnetization of a magnetic material showing a large Barkhausen effect is reversed in the alternating magnetic field. The signal processing unit determines as to whether the magnetization reversal occurs in the alternating magnetic field due to the large Barkhausen effect or not, based on a signal detected by the detecting coil. The signal processing unit includes amplifier that amplifies the signal detected by the detecting coil with plural different amplification factors and output the amplified signals with each of the plural different amplification factors.
    • 包括励磁线圈,检测线圈和信号处理单元的行李管理门。 励磁线圈在通过管道运送或执行物体的区域中形成交变磁场。 当在交变磁场中表现出大的巴克豪森效应的磁性材料的磁化反转时,检测线圈检测交变磁场的变化。 信号处理单元基于由检测线圈检测到的信号,确定由于大的巴克豪森效应而导致的交变磁场中的磁化反转是否发生。 信号处理单元包括放大器,其放大由多个不同放大系数由检测线圈检测的信号,并以多个不同放大系数中的每一个输出放大的信号。
    • 3. 发明申请
    • Baggage management gate
    • 行李管理门
    • US20090072969A1
    • 2009-03-19
    • US12073784
    • 2008-03-10
    • Shoji YamaguchiYasunori KodaKunihiro TakahashiMario FuseHiroyoshi InoueTsukasa Matsuda
    • Shoji YamaguchiYasunori KodaKunihiro TakahashiMario FuseHiroyoshi InoueTsukasa Matsuda
    • G08B21/00
    • G01R33/04G01R33/02
    • A baggage management gate including an exciting coil, a detecting coil and signal processing unit. The exciting coil forms an alternating magnetic field in a passage to an area from which manages objects to be carried in or carried out. The detecting coil detects a variation in the alternating magnetic field when magnetization of a magnetic material showing a large Barkhausen effect is reversed in the alternating magnetic field. The signal processing unit determines as to whether the magnetization reversal occurs in the alternating magnetic field due to the large Barkhausen effect or not, based on a signal detected by the detecting coil. The signal processing unit includes amplifier that amplifies the signal detected by the detecting coil with plural different amplification factors and output the amplified signals with each of the plural different amplification factors.
    • 包括励磁线圈,检测线圈和信号处理单元的行李管理门。 励磁线圈在通过管道运送或执行物体的区域中形成交变磁场。 当在交变磁场中表现出大的巴克豪森效应的磁性材料的磁化反转时,检测线圈检测交变磁场的变化。 信号处理单元基于由检测线圈检测到的信号,确定由于大的巴克豪森效应而导致的交变磁场中的磁化反转是否发生。 信号处理单元包括放大器,其放大由多个不同放大系数由检测线圈检测的信号,并以多个不同放大系数中的每一个输出放大的信号。
    • 10. 发明授权
    • Recording medium detecting system
    • 记录介质检测系统
    • US07301324B2
    • 2007-11-27
    • US11477566
    • 2006-06-30
    • Shoji YamaguchiYasunori KodaKunihiro TakahashiMario FuseTsukasa Matsuda
    • Shoji YamaguchiYasunori KodaKunihiro TakahashiMario FuseTsukasa Matsuda
    • G01R19/00
    • G11B5/00804
    • A recording medium detecting system includes a magnetic field-generating unit that generates an alternating magnetic field in a predetermined particular region, a detecting unit provided close to the particular region, that detects a change in magnetic flux density not smaller than a predetermined magnetic-flux-density difference B2, and a recording medium, containing multiple magnetic wires made of a magnetic material and formed in a wire shape having a predetermined length, that causes a large Barkhausen effect when the alternating magnetic field is applied. A magnetic-flux-density difference B1 detected by the detecting unit at an installation position thereof when the recording medium is placed in the particular region is not smaller than the magnetic-flux-density difference B2.
    • 记录介质检测系统包括:在预定的特定区域中产生交变磁场的磁场产生单元,靠近特定区域设置的检测单元,其检测不小于预定磁通量的磁通密度变化 密度差B 2,以及包含由磁性材料制成并形成具有预定长度的线状的多个磁线的记录介质,当施加交变磁场时会导致较大的巴克豪森效应。 当记录介质放置在特定区域中时,由检测单元在其安装位置检测到的磁通密度差B 1不小于磁通密度差B 2。