|Temperature Range||270 Degree C|
Athermocoupleis an electrical device consisting of two dissimilarelectrical conductorsformingelectrical junctionsat differingtemperatures. A thermocouple produces a temperature-dependentvoltageas a result of thethermoelectric effect, and this voltage can be interpreted to measure temperature. Thermocouples are a widely used type oftemperature sensor.
Commercial thermocouples are inexpensive, interchangeable, are supplied with standard connectors, and can measure a wide range of temperatures. In contrast to most other methods of temperature measurement, thermocouples are self powered and require no external form of excitation. The main limitation with thermocouples is accuracy; system errors of less than one degreeCelsius( DegreeC) can be difficult to achieve.
Thermocouples are widely used in science and industry. Applications include temperature measurement forkilns,gas turbineexhaust,diesel engines, and other industrial processes. Thermocouples are also used in homes, offices and businesses as the temperature sensors in thermostats, and also as flame sensors insafety devicesfor gas-powered appliances.