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首页> 外文期刊>Russian Journal of Nondestructive Testing >A Model of the Calibration Blocks off the Magnetic Susceptibility of Disperse Materials for Devices Intended for Magnetic Susceptibility Measurements: I. Calculation of a Calibration Specimen with the Normalized Magnetic Susceptibility of a Disperse
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A Model of the Calibration Blocks off the Magnetic Susceptibility of Disperse Materials for Devices Intended for Magnetic Susceptibility Measurements: I. Calculation of a Calibration Specimen with the Normalized Magnetic Susceptibility of a Disperse

机译：校准模型可以阻止用于磁化率测量的设备的分散材料的磁化率：I.用分散剂的归一化磁化率计算校准标本

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摘要

Calculated parameters of large-volume calibration specimens are presented. The specimens are made of a disperse ferromagnetic mixture with the magnetic susceptibility chi_c > = 400 SI units encased in a spherical shell made of a dielectric with the magnetic susceptibility chi_m~d < 1. The normalized magnetic susceptibility is determined for the calibration specimens. Its limiting value, equal to chi_c~c = 1.99 SI units, is determined by their spherical form and the volume concentration C_v = 0.9, which corresponds to the volume fraction of the ferromagnetic component in the disperse medium. Relative error 8 in the measurement of the specimen's magnetic susceptibility does not exceed ±1 percent.
机译：给出了大批量校准样品的计算参数。样品由分散的铁磁混合物制成，其磁化率chi_c> = 400 SI单位，并包裹在由电导率chi_m〜d <1的电介质制成的球形外壳中。确定了标定样品的归一化磁化率。其极限值等于chi_c〜c = 1.99 SI单位，由其球形决定，体积浓度C_v = 0.9，其对应于分散介质中铁磁组分的体积分数。样品磁化率的相对误差8不超过±1％。

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