Resistance Temperature Detector (RTD) -Principle of Operation, Materials, Configuration and Benefits. An RTD(resistance temperature detector) is a temperature sensor that operates on the measurement principle that a material's electrical resistance changes with temperature.
An RTD is a temperature sensor which measures temperature using the principle that the resistance of a metal changes with temperature. ... This resistance value is then correlated to temperature based upon the known resistance characteristics of the RTD element.
Specifications: