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    Device and method for determining a state of an electromechanical relay contact, and a system including such a device
    9.
    发明公开
    Device and method for determining a state of an electromechanical relay contact, and a system including such a device 有权
    装置和方法，用于确定与这样的设备的机电继电器触点和系统的操作状态

    公开(公告)号：EP2960922A1

    公开(公告)日：2015-12-30

    申请号：EP14305992.1

    申请日：2014-06-24

    申请人： ALSTOM Transport Technologies

    发明人： Lemoine, Jocelyn

    IPC分类号： H01H47/00 ,  G01R31/327

    CPC分类号： H01H47/002 ,  B61L3/121 ,  B61L3/126 ,  G01R31/3278 ,  H01H1/0015 ,  H01H9/167

    摘要： This state determination device (20) is adapted for determining a state of a relay contact (14) among closed and open states, the relay contact being movable between the closed and open states and connected to a resonant circuit (12), the resonant circuit having a resonance frequency and including a capacitor (24) or a coil (26).
    The device (20) comprises a generation unit (30) for generating an alternative voltage signal and for injecting the generated voltage signal into the resonant circuit, the generated voltage signal having a generated frequency comprised between 0.9 times and 1.1 times the resonance frequency, a measuring unit (32) for measuring an electric magnitude relative to the resonant circuit impedance after injection of the generated voltage signal, and a determination unit (34) for determining, according to the measured electric magnitude, the state of the relay contact among the closed and open states.

    摘要翻译： 此状态判定装置（20）被angepasst用于确定性采矿关闭和打开状态中的继电器接点（14）的状态下，继电器接触的关闭和打开状态之间移动，并连接到一个谐振电路（12），所述谐振电路 具有共振频率并且包括电容器（24）或线圈（26）。 的装置（20）包括生成单元（30），用于在交流电压信号产生并用于将所生成的电压信号注入到谐振电路，其具有0.9倍和1.1倍的谐振频率，一个之间包括一个产生频率所产生的电压信号 测量单元（32），用于将所生成的电压信号的注入后的相对电幅值的测量到谐振电路的阻抗，和用于确定性挖掘的判定单元（34），雅丁于所测量的电幅度的关闭之间的继电器触点的状态 和打开状态。