There is difference between RTD and thermistor which are given below.
|RTD (Resistance Temperature Detector)
|Here conductor us used which gives increase in resistance with increase in temperature.(i.e. PTC )
||Here semiconductor is used which gives change in resistance with change in temperature.(i.e. it shows both NTC and PTC)
|The materials used are copper, platinum, nickel, tungsten.
||In thermistor, semiconductor of ceramic materials are used such as manganese, cobalt, uranium etc.
|It has low hysteresis.
||It has high hysteresis.
|It has medium cost.
||It has low cost.
|The RTD is large in size.
||The thermistor is small in size.
|Very small change in resistance.
||Large and non linear change in resistance.
|The reproducibility is good.
||The reproducibility is less.
|The range for measurement are : -260 to 12000 C.
||The range for measurement are : -50 to 3000 C.