yorgus_1978 wrote:Are you sure that you will get this 0.1V difference at the tip / ends of the secondary winding as the difference between the cold and hot tip (preferably around 300 * C +/- 20 * C) ????it would have to distinguish 0.1 from 0.2V every 10ms (max voltage).
yorgus_1978 wrote:Sulfides too? Moreover, due to the different thermal expansion (the screws are made of steel), the pressure will not be constant, so the resistance of the contact itself will change.As for copper oxides - they are semiconductors,
yorgus_1978 wrote:And you are 100% sure that it will be a constant value for e.g. different tips? Different pressure of the tip to the flat bar?the change between cold and warm is like between 125 and 175 mV.
I don't, and hence my posts.