
Why Temperature Sensors Drift Over Time | RTD, Thermocouple & NTC Guide
In industrial systems, temperature sensors are expected to provide accurate measurements for many years. However, engineers sometimes observe that readings gradually change even when the actual temperature remains constant. This phenomenon is known as sensor drift. Sensor drift can affect various sensing technologies, including RTD temperature sensors, thermocouples, and NTC thermistors. Understanding why drift occurs helps engineers select more reliable sensors and reduce long-term maintenance costs. What Is Temperature Sensor Drift? Temperature sensor drift refers to a gradual change in sensor output over time while the real temperature remains unchanged. For example, a PT100 temperature sensor calibrated at 100 °C









