Measurement of Losses of Magnetic Materials at High Inductions at Frequencies up to 100 Megacycles

Bady Isidore

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Measurement of Losses of Magnetic Materials at High Inductions at Frequencies up to 100 Megacycles

机译：在高达100兆周的频率下以高感应强度测量磁性材料的损耗

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Methods for measuring ferrites at high inductions are given. For frequencies below 50 Mc, a conventional series resonant circuit is used, and coupled to a high power signal source through a variable capacitive attenuator. The test sample is in the form of a toroid with an appropriate winding. The Q of the test sample is determined with the aid of an air coil whose Q is known. Harmonics, sources of errors, and pulse modulation are discussed. For frequencies of 50 Mc and above, a short circuited coaxial slotted line is used. To get high currents into the slotted line, it is inductively coupled to a high power signal source and tuned to resonance by means of a capacitor. A method for determining the current in the line is given.

机译：给出了在高感应下测量铁氧体的方法。对于低于50 Mc的频率，使用常规的串联谐振电路，并通过可变电容衰减器耦合到高功率信号源。测试样品为带有适当绕组的环形线圈。借助于Q已知的空气盘管确定测试样品的Q。讨论了谐波，误差源和脉冲调制。对于50 Mc及以上的频率，使用短路的同轴开缝线。为了使大电流进入缝线，它被感应耦合到高功率信号源，并通过电容器调谐到谐振状态。给出了一种确定线路电流的方法。

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《Journal of Applied Physics》 |1958年第3期|共2页
作者
Bady Isidore;
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作者单位

U. S. Army Signal Engineering Laboratories, Fort Monmouth, New Jersey;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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正文语种 eng
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专利

1. Physical interpretation of induction and frequency dependence of power losses in soft magnetic materials [J] . Bertotti G., Pasquale M. IEEE Transactions on Magnetics . 1992,第5期

机译：软磁材料中功率损耗的感应和频率依赖性的物理解释
2. The measurement of the characteristics of concentric cables at frequencies between 1 and 100 megacycles per second [J] . Jones T. Iorwerth Electrical Engineers - Part I: General, Journal of the Institution of . 1943,第31期

机译：在每秒1到100兆周期之间的频率下测量同心电缆的特性
3. The measurement of the characteristics of concentric cables at frequencies between 1 and 100 megacycles per second [J] . Iorwerth Jones T. Electrical Engineers - Part III: Communication Engineering, including the Proceedings of the Wireless Section of the Institution, Journal of the Institution of . 1942,第8期

机译：在每秒1到100兆周期之间的频率下测量同心电缆的特性
4. Measurement And Prediction Of Dynamic Loop Shapes And Power Losses In Soft Magnetic Materials Under Generic Induction Waveform [C] . Bertotti, G., Fiorillo, . 2001

机译：通用感应波形下软磁材料中动态环路形状和功率损耗的测量和预测
5. Spatial sensitivity of low-induction-number frequency-domain electromagnetic-induction instruments. [D] . Callegary, James Briggs. 2005

机译：低感应数频域电磁感应仪器的空间灵敏度。
6. Advances in the Interpretation of Frequency-Dependent Nuclear Magnetic Resonance Measurements from Porous Material [O] . David Faux, Rémi Kogon, Villiam Bortolotti, 2019

机译：多孔材料对频变核磁共振测量解释的研究进展
7. The measurement of dielectric losses at a frequency of one hundred megacycles per second [O] . Oliver Bernard More 1940

机译：以每秒一百兆周的频率测量介电损耗

Measurement of Losses of Magnetic Materials at High Inductions at Frequencies up to 100 Megacycles

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