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发射率变化影响了非接触辐射测温的测温精度，使辐射测温法难于在工业上推广应用。本文从测量波段的不同角度介绍了国外一些新的辐射测温法
Emissivity changes affect the temperature measurement accuracy of non-contact radiation temperature measurement, so that the radiation thermometry is difficult to promote the industrial application. In this paper, some new radiation thermometry abroad are introduced from different angles of measurement band