原子磁力计磁感应测量中射频磁场的偏振特性
Polarisation of radio-frequency magnetic fields in magnetic induction measurements with an atomic magnetometer
AI总结：
本研究结合理论与实验探究射频原子磁力计对振荡磁场偏振的灵敏度，发现次级磁场分量随材料特性产生响应且射频偏振在物体表面有差异，该多分量检测能力可优化磁感应断层成像的测量策略。
摘要：
我们探究了射频原子磁力计的特性，重点研究其对振荡磁场偏振的灵敏度。这一特性在传感器监测多源产生的磁场的配置中尤为重要。本研究结合理论与实验，围绕磁感应断层成像测量中导电板与导磁板产生的信号展开讨论。我们发现，次级磁场的不同分量会根据材料特性产生物体响应，且射频场的偏振在物体表面存在差异。我们认为，传感器同时检测不同磁场分量的能力，可针对不同物体成分优化测量策略。
英文摘要：
We explore properties of the radio-frequency atomic magnetometer, specifically its sensitivity to the polarisation of an oscillating magnetic field. This aspect can be particularly relevant to configurations where the sensor monitors fields created by more than one source. The discussion, illustrated by theoretical and experimental studies, is done in the context of the signals produced by electrically conductive and magnetically permeable plates in magnetic induction tomography measurements. We show that different components of the secondary magnetic fields create the object response depending on the properties of the material, with the polarisation of the rf field varying across the object's surface. We argue that the ability of the sensor to simultaneously detect different field components enables the optimisation of measurement strategies for different object compositions.
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