Precise Ferromagnetic Resonance Magnetometers for Differential Measurements in Fields Characterized by Large Gradients

Hempstead C. F.; Sibilia J. T.; Kostelnick J. J.

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Precise Ferromagnetic Resonance Magnetometers for Differential Measurements in Fields Characterized by Large Gradients

机译：精确的铁磁谐振磁力计，用于大梯度场中的差分测量

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Design considerations, construction details, and measured performance of two magnetometer systems utilizing microwave ferromagnetic resonance in small single‐crystal spheres of stoichiometric yttrium iron garnet (YIG) are presented. One system is for general use at ambient temperatures, while the second is designed for high precision measurements at liquid helium temperatures. These instruments are capable of measuring magnetic field strength to a precision of approximately one part in 104 even when the field is characterized by gradients as large as 1000 G/in. Since the YIG spheres employed are only 0.015 in. in diameter, these magnetometers come close to being ideal point probes.

机译：介绍了在化学计量的钇铁石榴石（YIG）的小单晶球中利用微波铁磁共振的两种磁力计系统的设计注意事项，构造细节和测量性能。一种系统在环境温度下通用，而另一种系统则设计用于液氦温度下的高精度测量。这些仪器即使在磁场梯度高达1000 G / in的情况下，也能够以104分之一的精度测量磁场强度。由于使用的YIG球直径仅为0.015英寸，因此这些磁力计几乎是理想的点探针。

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《Review of Scientific Instruments》 |1964年第7期|共5页
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Hempstead C. F.; Sibilia J. T.; Kostelnick J. J.;
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Precise Ferromagnetic Resonance Magnetometers for Differential Measurements in Fields Characterized by Large Gradients

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