论文部分内容阅读
由于磁带、磁粉50Hz时涡流损耗可以忽略不计,在50Hz磁化场下测量其磁性参数较为方便,而且由于没有各种直流量的漂移,有足够高的测量准确度。为此,这种方法被国内外大多数生产厂家及研究部门广泛采用。但国内大多数仪器的磁化螺线管场强低,不能用于矫顽力Hc>32KA/m(400Oe)材料的测量,磁场均匀区范围小,测量误差一般大于±5％。为
Due to the magnetic tape, the eddy current loss is negligible when the magnetic powder is at 50Hz. It is more convenient to measure the magnetic parameters under the magnetic field of 50Hz. And because there is no drift of various direct currents, the measurement accuracy is high enough. To this end, this method is widely used by most domestic and foreign manufacturers and research departments. However, the magnetizing solenoid field strength of most instruments in China is low and can not be used for the measurement of coercive force Hc> 32 kA / m (400 Oe). The range of even magnetic field is small and the measurement error is generally greater than ± 5%. for