New Thermocouple: Characteristic Investigation of Au+Pd+Ni/Ni+Cr Thermocouple Below 273K

摘要

Experimental investigation of AuPdNi/NiCr thermocouple characteristic below 273K is described in the paper. The thermoelectric force of the thermocouple is as high as 14.5 mv at 4.2K. Its sensitivity is 15-79 microvolts/k in the temperature range from 20k to 273K, and these are the highest of all thermocouples now. The inhomogeneity, E-T relation and the Seebeck coefficients are given in the paper, and it is compared with AuFe/NiCr thermocouple. Finally, the T-E-S reference table is given also.