What You Need to Know
Type‑K thermocouples generate a voltage proportional to the temperature difference between the probe junction and a reference junction via the Seebeck effect, while thermistors rely on a resistance change that follows the Arrhenius equation. Both sensor types require a stable reference temperature for accurate calibration, and deviations can lead to significant errors in temperature readings.
The Science
Primary Reaction
Seebeck voltage generation in thermocouples and resistance change in thermistors