一种考虑应力下的新型高频二维磁特性测试仪的设计与优化

Design and Optimize of Novel High Frequency 2-D Magnetic Tester Under Stress

设计了一种新型高频旋转磁特性测试仪,用于检测磁性材料在应力影响下的高频旋转磁特性;提出了新型磁路结构,改变磁芯形状,降低了磁芯制作难度,消除了由于磁路搭建产生的误差,提高了测试系统的精确性;结合测试仪特点,设计了应力施加装置。设计了分层式铜箔激磁绕组,选用纳米晶材料制作磁芯,准确地模拟了高频旋转磁场;设计了新型传感结构。经过有限元仿真对比分析,优化了磁芯及样品的结构尺寸,验证了磁路的合理性。

A novel high frequency rotating magnetic properties tester was designed,which was applied to measure the high frequency rotating magnetic properties of magnetic materials.A novel magnetic circuit structure was designed by changing the shape of cores,which reduced the difficulty in assembly of the magnetic cores.The error caused by magnetic road construction was eliminated,thus improving the accuracy of the test system.A stress applying device was designed according to the characteristics of the tester.The layered copper foil excitation winding was designed.Nanocrystalline materials were used to make magnetic cores to ensure the accurate simulation of the high frequency rotating magnetic field.A novel sensing structure was designed.By finite element simulation analysis,the structure size of magnetic core and sample was optimized and the rationality of magnetic circuit was verified.