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一种基于非厄米差频线圈阵列的异物检测方法

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摘要 无线电能传输过程中,异物如果存在于传能系统,会对整个传能系统的效率和安全性造成损害。本文基于单共振线圈系统的耦合模理论分析,设计了一种由4×4个检测单元组成的大小为16cm×16cm的异物检测线圈阵列,其中近邻两个单元频率分别为6.5MHz和7.5MHz。通过计算异物存在时检测单元的电压相对无异物时的变化率,实现对金属异物的检测。实验结果表明,该方法可以有效地检测到尺寸小于1cm的金属异物,精度最高可达80%,且可以检测铁氧体异物。
作者 余跃
出处 《新型工业化》 2021年第7期40-42,共3页 The Journal of New Industrialization
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