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Circuit Model Representation of a Continuous Wave (CW) Electromagnetic Induction (EMI) Metal Detection/Discrimination System

机译:连续波(CW)电磁感应(EMI)金属检测/鉴别系统的电路模型表示

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This paper addresses continuous wave (CW) electromagnetic induction (EMI) measurements of wire loops (q-coils) and low metallic (LM) content landmines. Most importantly, measurement errors are addressed. A method based on the measurement of a q-coil with an analytically calculable response is used to produce an error correction function. When this function is used to correct EMI CW measurements of other objects cross over frequency errors are reduced relative to the uncorrected case on average by a factor of 2. Insights into the sources of systematic errors are provided through the analysis of a simple equivalent circuit model of the EMI measurement system.
机译:本文介绍了导线回路(q线圈)和低金属含量(LM)的地雷的连续波(CW)电磁感应(EMI)测量。最重要的是,解决了测量误差。一种基于具有可分析计算的响应的q线圈测量的方法用于产生误差校正函数。使用此功能校正其他对象的EMI CW测量结果时,与未经校正的情况相比,相交频率误差平均降低了2倍。通过分析简单的等效电路模型,可以洞悉系统误差的来源。 EMI测量系统。

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