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为了选择合适的磁致冷材料 ,确立更准确的测量方法 ,利用永磁体作磁场 ,采用高灵敏温度传感器 ,直接测量了Gd5(SixGe1-x) 4合金样品的ΔTad-T曲线 ,并与文献中相同成分的样品间接测量的结果进行了比较 .分析了测量结果以及存在的误差
In order to select a suitable magnetic refrigeration material, a more accurate measurement method is established. The permanent magnet is used as a magnetic field, and the ΔTad-T curve of the Gd5 (SixGe1-x) 4 alloy sample is directly measured with a highly sensitive temperature sensor. The results of the indirect measurement of samples of the same composition were compared and the results of the measurement as well as the errors