为提高热电材料塞贝克系数的测试准确度,主要以康铜合金和钴酸钙为测试对象进行了一系列测试,其中以典型的碲化铋、方钴矿、硒化铅块体热电材料为辅助研究对象,具体研究测温热电偶的塞贝克效应、温差设置、数据处理方式对塞贝克系数测试结果的影响。结果表明:热电偶的塞贝克效应对Seebeck系数测试准确度的影响是显著的;样品两端温差设为10K以上,多组温差间的梯度设为3K以上,直线拟合方式采用不过原点拟合,可以使Seebeck系数测试结果的准确度得到很大提高。 In order to improve the testing accuracy of the Seebeck coefficient of thermoelectric materials, a series of tests were mainly carried out on the basis of the test of KangCan alloy and calcium cobalt oxide. Among them, the typical thermoelectric materials for bismuth telluride, Auxiliary research object, the thermocouple temperature measurement Seebeck effect, temperature setting, data processing methods on the Seebeck coefficient test results. The results show that the influence of Seebeck coefficient of the thermocouple on the test accuracy of the Seebeck coefficient is significant. The temperature difference between the two ends of the sample is set to be 10K or more, and the gradient between the sets of temperature differences is set to be 3K or more. , The accuracy of the Seebeck coefficient test results can be greatly improved.