Thermocouple
| Formula / Notation | V = V₀ + αΔT; EMF temperature measurement |
|---|---|
| Also Known As | Thermoelectric temperature sensor, TC, temperature transducer |
What is Thermocouple?
A temperature-sensing device consisting of two different metal wires joined at one end. The temperature difference between the hot and cold junctions generates a voltage (Seebeck effect) proportional to the temperature. Thermocouples measure temperatures from cryogenic to over 2000°C.
Formula & Notation
Other Names / Synonyms: Thermoelectric temperature sensor, TC, temperature transducer
Properties & Characteristics
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
A temperature-sensing device consisting of two different metal wires joined at one end. The temperature difference between the hot and cold junctions generates a voltage (Seebeck effect) proportional to the temperature. Thermocouples measure temperatures from cryogenic to over 2000°C.
Thermocouples are used in industrial furnaces, chemical reactors, and process equipment for temperature monitoring and control. They are used in scientific instruments for calorimetry and thermal analysis. Household applications include oven temperature regulation and gas appliance safety cutoffs.
Thermocouple wires exposed to process fluids may corrode or fail over time, requiring regular calibration and replacement. Failures in safety-critical temperature monitoring systems can lead to process upsets or fires.
The formula or notation for Thermocouple is: V = V₀ + αΔT; EMF temperature measurement