Sensor Coil Influence on the Two-dimensional Magnetic Property Measurements
Sensor Coil Influence on the Two-dimensional Magnetic Property Measurements
复制标题
传感器线圈对二维磁性能测量的影响
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
M. Enokizono
中科院分区：
文献类型：
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作者：
Y. Maeda;H. Shimoji;T. Todaka;M. Enokizono
近年来，二维矢量磁测量技术的发展越来越受到人们的重视，许多研究人员一直在努力开发更精确的测量系统和标准的测量装置。在开发高效执行器时，使用高磁通密度设计可以帮助实现高扭矩、重量减轻和尺寸缩小。因此，了解高磁通量条件下电工钢板的磁性能非常重要。然而，由于磁性材料的非线性和各向异性，在测量中仍然存在一些困难。当磁通密度超过1.2T时，顺时针和逆时针旋转磁场的磁功率损耗测量值会发生变化，逆时针旋转磁场的磁功率损耗有时会出现负值。可以认为H、B线圈的角度误差是引起测量误差的主要原因。本文利用一种由特殊螺线管线圈和高精度转台组成的校准装置，对双B线圈（搜索线圈）和双H线圈（十字型H线圈）的角度误差进行了评定。用测得的角度误差补偿磁特性。
Recently, two-dimensional vector magnetic measurements have become popular and many researchers have been trying to develop a more accurate measuring system and a standard measurement device. In development of high-efficiency actuators, use of high magnetic flux density designs can assist high torque, weight reduction and size down. It is therefore very important to understand the magnetic properties under high magnetic flux conditions in the electric steel sheets. However, there are still some difficulties in the measurements, due to nonlinearity and anisotropy of magnetic materials. The measured magnetic power losses of the clockwise and counter-clockwise rotating fields become different for magnetic flux density over 1.2 T and the value in counter-clockwise case sometimes became negative. It can be considered that angle errors of H and B-coils are the main reasons of the measurement errors. In this paper, the angle errors of the double B-coil (search coils) and the double H-coil (cross-type H-coil) are evaluated with a calibration device, which consists of a special solenoid coil and a high-precision turntable. The magnetic properties are compensated with the measured angle errors.