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    • 8. 发明申请
    • METHOD AND DEVICE FOR NON-CONTACT DETECTION OF EXTERNAL ELECTRIC OR MAGNETIC FIELDS
    • 用于非接触检测外部电磁场的方法和装置
    • WO00039596A1
    • 2000-07-06
    • PCT/IL1999/000685
    • 1999-12-15
    • G01R29/08G06K19/07G01R15/26
    • G06K19/0675G06K19/0723
    • A device for non-contact detection of an external field is presented. The device comprises an active unit (14) capable of emitting an interrogation signal, and a passive unit (12) to be positioned at a spot where the external field is to be detected. The passive unit comprises a substrate (20), which is capable of transporting therethrough a wave sensitive to the external field, and is formed with a delay line thereon. The delay line forms a wave channel for the wave's propagation, and is capable of converting the interrogation signal into a response signal. The wave channel is exposed contactlessly to action of the external field, and is thereby capable of altering the response signal to become informative of the external field. The active unit is capable of receiving and processing the response signal, using a reference signal, for determining and indicating the external field at the spot.
    • 提出了一种用于外部场的非接触检测的装置。 该装置包括能够发出询问信号的有源单元(14)和被定位在要检测外部场的位置处的被动单元(12)。 无源单元包括能够通过其传输对外部场敏感的波长的衬底(20),并且在其上形成有延迟线。 延迟线形成用于波的传播的波通道,并且能够将询问信号转换成响应信号。 波通道非接触地暴露于外场的作用,从而能够改变响应信号以变得信息外部场。 有源单元能够使用参考信号接收和处理响应信号,以确定和指示现场的外场。