The potential measured when the cold end temperature is t 1= 10℃ is thermoelectric potential E(t, t 1).

Converted into thermoelectric potential e (t, 0)= e(t, t 1)+e (t 1, 0) = 72.593+0.591= 73.184mv.

It can be seen from the table that at 950~960℃, (73350-72593)/10 = 75.7 μ v/℃, 73184-73350 =-166 μ v,

- 166/75.7≈-2℃，t=960-2=958℃

The actual temperature is 958 degrees.