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发明授权
CN108415087B 防止电磁干扰的方法 有权

防止电磁干扰的方法
摘要：
本发明提供了一种防止电磁干扰的方法，所述方法包括：确定安检设备的第一立板上的金属检测装置的发射线圈的磁场最弱区域；将气体检测装置设置在所述磁场最弱区域；确定所述磁场最弱区域周围的接收线圈的电信号最弱区域；将所述接收线圈设置在所述电信号最弱区域；调节二级放大器的功率，确定二级放大器的最佳功率；所述二级放大器以最佳功率对接收到的一级放大信号进行放大，生成二级放大信号，由此，消除气体检测装置对金属检测的干扰。
摘要（英）：

The present invention provides a method for preventing electromagnetic interference. The method comprises a step of determining a weakest magnetic field area of a transmitting coil of a metal detecting device on a first vertical plate of a security device, a step of setting a gas detecting device at the weakest magnetic field area, a step of determining a weakest electrical signal area of a receiving coil around the weakest magnetic field area, a step of setting the receiving coil in the weakest electrical signal area, a step of adjusting the power of a secondary amplifier to determine an optimal power of the secondary amplifier, and a step of allowing the secondary amplifier to amplify a received first-order amplified signal with an optimal power to generate a secondary amplified signal.Thereby, the interference of a gas detecting device to metal detection is eliminated.

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