Resistance thermometer Sensitivity

The resistance change per degree change in temperature is a function of base resistance and TCR (Temperature Coefficient of Resistance).

Although a thermometer with higher sensitivity is not necessarily more accurate, a larger signal simplifies output electronics and is less susceptible to lead wire effects and electrical noise.

In addition, a larger resistance produces the same voltage output with less measuring current, which helps to limit self-heating of the thermometer element.

1 Like