Thermistors, thermocouples and RTD Sensors are all used to measure temperature. However, in particular circumstances when greater precision, coupled with longevity and stability are required ATC Semitec recommend a Pt100 (Resistance Temperature Detector) should be used.
RTDs give excellent linearity across a wide and high temperature range. This means that as the resistance increases the temperature also increases and therefore can be measured. In comparison to thermistors and thermocouples their stability reduces above certain temperatures.
Based on high precision, accuracy, stability and longevity Pt100, Pt1000 are ideal for use, and frequently used in the following applications:
HVAC
Automotive (Measuring engine temperature, oil level sensors, intake air temperature)
Consumer Electronics
Food handling, processing
Medical Electronics
Military
Aerospace
Other industrial processes
In these situations, it is recommended that a Platinum RTDs is used as it offers the most stable resistance/temperature relationship compared to Nickel or Gold RTDS.
For help with identifying the correct PRTD for your application contact our technical engineers at ATC Semitec on 01606 871680