Which of the following are used in making resistance temperature detectors?

In Resistance Temperature Detector devices; Copper, Nickel, Tungsten and Platinum are widely used metals because they are pure metals.

Important Points

• The resistive transducers or resistive sensors are also called as variable resistance transducers.
• It has a positive value of temperature coefficient.
• They can be used for measuring various physical quantities, such as, temperature, pressure, displacement, force, vibrations etc.
• The variable resistance transducer elements work on the principle that the resistance of the conductor is directly proportional to the length of the conductor and inversely proportional to the area of the conductor