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    Proximity detector mine system
    4.
    发明公开
    Proximity detector mine system 失效
    接近探测器矿山系统

    公开(公告)号：EP0450118A1

    公开(公告)日：1991-10-09

    申请号：EP90106318.0

    申请日：1990-04-03

    申请人： Cohen, David ,  Ravid, Amitz ,  Root, Stephen D.

    发明人： Cohen, David ,  Ravid, Amitz ,  Root, Stephen D.

    IPC分类号： F42C13/06 ,  F42B23/16 ,  F42C14/06

    CPC分类号： F42C13/06 ,  F42C11/007

    摘要： A proximity detector mine system comprises a mine deployable on the ground and including a propellant device (PD) effective upon actuation to propel the mine above the ground, explosive material (4) a detonator (ED) or detonating the explosive material a predetermined time after the propellant has been actuated, a sound sensor (Ma, Mb, Mc, Md) producing electrical signals in response to the sound sensed thereby, and a processor (PU) for processing the electrical signals and for actuating the propellant device in response to the electrical signals received from the sound sensor.

    摘要翻译： 接近探测器地雷系统包括可在地面上展开并且包括推进剂装置（PD）的矿山，所述推进剂装置在致动时起作用以在地面上推进矿，爆炸物（4），雷管（ED）或在预定时间后引爆爆炸物 推进剂已经启动，响应于由此感测到的声音而产生电信号的声音传感器（Ma，Mb，Mc，Md）以及用于处理电信号并响应于所述推进剂装置而致动推进剂装置的处理器 从声音传感器接收到的电信号。

    An acoustic alert sensor
    9.
    发明公开
    An acoustic alert sensor 失效
    AkustischerMessfühlerfürNäherungswarngerät。

    公开(公告)号：EP0460503A2

    公开(公告)日：1991-12-11

    申请号：EP91108688.2

    申请日：1991-05-28

    申请人： ALLIANT TECHSYSTEMS INC.

    发明人： Jensen, Randy M.

    IPC分类号： G01S11/14 ,  F42C13/06 ,  G08B13/16

    CPC分类号： G01V1/001 ,  F42C13/06 ,  G01S11/14

    摘要： An acoustic detector for detecting acoustic signals produced by vehicles. The detector comprises an acoustic sensor which senses an acoustic signal which is provided to a zero crossing detector. The zero crossing detector provides a digital signal representing the frequency of the incoming acoustic signal. The zero crossing detector's providing this digital signal to a first counter, the first counter's counting each zero crossing, and the first counter's reaching a predetermined count of zero crossings in a predetermined time for a predetermined number of times results in an acoustic alert provided to a secondary device which is put on alert of a vehicle in it vicinity. This secondary device may be a mine.

    摘要翻译： 一种用于检测由车辆产生的声信号的声检测器。 该检测器包括一个声传感器，该声传感器检测提供给零交叉检测器的声信号。 过零检测器提供表示输入声信号频率的数字信号。 零交叉检测器将该数字信号提供给第一计数器，第一计数器对每个过零点进行计数，并且第一计数器在预定时间内达到预定计数的零交叉预定次数导致提供给一个 在其附近的车辆警戒的二次装置。 该二次装置可以是矿井。